CN109478713B

CN109478713B - Wireless transceiver device, antenna unit and base station

Info

Publication number: CN109478713B
Application number: CN201680087719.0A
Authority: CN
Inventors: 赵书晨; 龙科; 刘传; 邓长顺
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-07-27
Filing date: 2016-07-27
Publication date: 2020-10-09
Anticipated expiration: 2036-07-27
Also published as: CN112397897B; CA3031996A1; EP3487000A1; CN112397897A; EP3487000A4; MX2019001191A; EP3487000B1; WO2018018473A1; CN109478713A; CA3031996C

Abstract

The invention discloses a wireless transceiver device, an antenna unit and a base station, and belongs to the field of communication. The wireless transceiver module comprises: the antenna comprises a metal carrier and at least one antenna unit arranged at the edge of the metal carrier, wherein each antenna unit comprises a feed structure and a radiation patch; the feed structure and the radiation patch are both non-centrosymmetric structures; the radiating patch is fed through the feed structure and grounded. The invention solves the problem that the roundness of the directional diagram is poorer when the antenna unit is not arranged at the central position of the metal carrier. The embodiment of the invention is used for information transceiving of the wireless transceiving device.

Description

Wireless transceiver device, antenna unit and base station

Technical Field

The present invention relates to the field of communications, and in particular, to a wireless transceiver, an antenna unit, and a base station.

Background

In a mobile communication system, a radio transceiver is a common signal transceiving structure, and mainly includes: antenna element, dielectric substrate, shielding lid and metal carrier etc. structure. In order to achieve wide coverage of signals of the wireless transceiver, the antenna units disposed on the wireless transceiver are generally omnidirectional antenna units, and the omnidirectional antenna units exhibit 360 ° uniform radiation in a horizontal directional pattern, that is, so-called non-directivity, and exhibit beams with a certain width in a vertical directional pattern.

In a conventional transceiver, if an omnidirectional antenna unit is installed, the omnidirectional antenna unit is usually disposed at the center of a metal carrier (the metal carrier is equivalent to a reference ground), for example, the omnidirectional antenna unit is disposed on a shielding cover of the transceiver in a central symmetry manner, and a radiation sheet or a radiator of the antenna unit is designed in a central symmetry (also called rotational symmetry) structure.

However, if the antenna element is not disposed at the center of the metal carrier, the symmetry of the antenna element with respect to the metal carrier cannot be ensured, thereby inevitably resulting in non-centrosymmetric distribution of ground current, resulting in deterioration of the circularity of the pattern of the antenna element.

Disclosure of Invention

In order to solve the problem that the roundness of a directional pattern of an antenna unit is poor when the antenna unit is not arranged at the center of a metal carrier, the embodiment of the invention provides a wireless transmitting and receiving device, an antenna unit and a base station. The technical scheme is as follows:

in a first aspect, a wireless transceiver apparatus is provided, including:

the antenna comprises a metal carrier and at least one antenna unit arranged at the edge of the metal carrier, wherein each antenna unit comprises a feed structure and a radiation patch, the edge refers to the non-center of the metal carrier, namely when the metal carrier is in a centrosymmetric structure, the antenna unit is positioned at the non-center of the metal carrier, and when the metal carrier is in a non-centrosymmetric structure, the antenna unit is positioned on the metal carrier if the antenna unit does not have a center;

the feed structure and the radiation patch are both non-centrosymmetric structures;

the radiating patch is fed through the feed structure and grounded.

In the wireless transceiver device provided in the embodiment of the present invention, the feed structure and the radiation patch of each antenna unit in at least one antenna unit disposed at the edge of the metal carrier are both non-centrosymmetric structures, and the metal carrier is used as a reference ground of the antenna unit and is also non-centrosymmetric with respect to each antenna unit, so that for each antenna unit, the distribution of ground currents generated by the non-centrosymmetric radiation patch and the non-centrosymmetric reference ground can form relative centrosymmetry.

Optionally, a gap exists between the feed structure and the radiation patch, and the feed structure and the radiation patch are coupled and fed through the gap.

According to the wireless transceiver provided by the embodiment of the invention, the feed structure and the radiation patch are coupled and fed through the gap, so that the bandwidth of the antenna unit can be effectively expanded.

Alternatively, the feed structure may take a variety of forms:

in a first possible implementation manner, the feed structure is an E-shaped structure, the E-shaped structure is formed by a first longitudinal bar-shaped structure and 3 transverse bar-shaped structures with one ends spaced apart, the opening of the E-shaped structure deviates from the radiation patch, the radiation patch is located, the length of the first transverse bar-shaped structure in the middle of the E-shaped structure is greater than the lengths of the other 2 first transverse bar-shaped structures, and the radiation patch is connected to the feed source of the metal carrier, and the first longitudinal bar-shaped structure and the radiation patch form the gap. The feed source, which is also a feed source, may be a signal transmission port of a metal carrier, and is usually connected to an input/output port of a transceiver.

In a second possible implementation manner, the feed structure is a T-shaped structure, the T-shaped structure is composed of a second longitudinal strip-shaped structure and 1 second transverse strip-shaped structure, one end of each second transverse strip-shaped structure extends outwards from the middle of the second longitudinal strip-shaped structure, the other end of each second transverse strip-shaped structure is connected with the feed source of the metal carrier, and the second longitudinal strip-shaped structure and the radiation patch form the gap.

In a third possible implementation manner, the feed structure is an integrated structure formed by an arc-shaped structure and a strip-shaped structure, one end of the strip-shaped structure is connected with the feed source of the metal carrier, the other end of the strip-shaped structure is connected with the arc-shaped structure, the radiation patch is close to one side of the feed structure, an arc-shaped opening is arranged in the arc-shaped opening, and the arc-shaped opening forms the gap.

In a fourth possible implementation manner, the feed structure is an arc-shaped strip structure, the outer side of the feed structure is connected with the feed source of the metal carrier, and the inner side of the feed structure and the radiation patch form the gap.

Optionally, the feed structure is parallel to the setting surface of the antenna unit, the feed structure is connected to the feed source of the metal carrier through a feed pin, and the feed pin is perpendicular to the setting surface of the antenna unit.

The feed pin can not only support the feed structure, but also realize effective feeding of the feed structure.

Further, the antenna unit further includes a dielectric substrate, and the radiation patch and the feed structure are both disposed on the dielectric substrate.

The medium substrate can effectively bear the radiation patch and the feed structure, and a gap is generated between the radiation patch and the setting surface of the antenna unit, so that electromagnetic oscillation between the radiation patch and the antenna unit is realized.

Optionally, the antenna unit further includes:

and the parasitic structure is positioned on a plane parallel to the arrangement plane of the antenna unit, and is grounded. By adding parasitic structures, the bandwidth of the antenna element can be further expanded.

Optionally, a gap exists between the parasitic structure and the radiating patch, and the parasitic structure and the radiating patch are coupled to feed through the gap. The parasitic structure and the radiation patch are fed through gap coupling, so that the bandwidth of the antenna unit can be effectively ensured to be expanded on the premise of occupying a smaller volume.

On the basis that the antenna unit includes a parasitic structure, optionally, the antenna unit may further include: the antenna comprises a first grounding pin, wherein one end of the first grounding pin is connected with the parasitic structure, the other end of the first grounding pin is connected with the metal carrier, the first grounding pin is perpendicular to the arrangement surface of the antenna unit, and the parasitic structure is grounded through the metal carrier. The first grounding pin can realize effective grounding of the parasitic structure.

Optionally, the antenna unit may further include:

and one end of the second grounding pin is connected with the radiation patch, the other end of the second grounding pin is connected with the metal carrier, the second grounding pin is vertical to the arrangement surface of the antenna unit, and the radiation patch is grounded through the metal carrier.

In a possible implementation manner, one side of the radiation patch is provided with the second ground pin, and the other side of the radiation patch is provided with the feed structure.

In another possible implementation manner, there are 2 second ground pins, and 2 second ground pins are symmetrically disposed on two sides of the radiation patch.

In practical application, the feed structure is an axisymmetric structure, and a symmetry axis of the feed structure is coaxial with symmetry axes of the 2 second ground pins.

Optionally, the parasitic structure is a non-centrosymmetric structure. The radiation patch, the feed structure and the parasitic structure are all non-centrosymmetric structures, so that the characteristic of high roundness of the antenna unit is still ensured when the antenna unit is not arranged at the central position of the metal carrier, and the universal applicability of the antenna unit is improved.

In an example, the parasitic structure is a fan-shaped structure, the radiation patch is a semi-annular structure, and the center of the radiation patch and the center of the parasitic structure are located on the same side of the radiation patch.

It should be noted that the radiating patch in the antenna unit without the parasitic structure may also be a semi-ring structure, or other non-centrosymmetric structure. The embodiment of the present invention is not limited thereto.

Optionally, a carrier medium substrate and a shielding cover are sequentially stacked on the metal carrier, the antenna unit is disposed on the shielding cover and located at an edge of the metal carrier, and the carrier medium substrate is used for bearing electronic components in the metal carrier.

In a second aspect, there is provided an antenna unit comprising:

a feed structure and a radiating patch;

the radiating patch is fed through the feed structure and grounded.

In the embodiment of the invention, the radiation patch and the feed structure of the antenna unit are both of non-centrosymmetric structures, so that the characteristic of high roundness of the antenna unit can be still ensured when the antenna unit is not arranged at the central position of the metal carrier, and the general applicability of the antenna unit is improved.

According to the antenna unit provided by the embodiment of the invention, the feed structure and the radiation patch are coupled and fed through the gap, so that the bandwidth of the antenna unit can be effectively expanded.

Alternatively, the feed structure may take a variety of forms:

in a first possible implementation manner, the feed structure is an E-shaped structure, the E-shaped structure is formed by a first longitudinal bar-shaped structure and 3 transverse bar-shaped structures with one ends spaced apart, the opening of the E-shaped structure deviates from the radiation patch, the radiation patch is located, the length of the first transverse bar-shaped structure in the middle of the E-shaped structure is greater than the lengths of the other 2 first transverse bar-shaped structures, and the radiation patch is connected with the feed source of the metal carrier at the other end of the first transverse bar-shaped structure in the middle of the E-shaped structure, and the first longitudinal bar-shaped structure and the radiation patch form the gap.

In a second possible implementation manner, the feed structure is a T-shaped structure, the T-shaped structure is composed of a second longitudinal strip-shaped structure and a second transverse strip-shaped structure, one end of each second transverse strip-shaped structure extends outwards from the middle of the second longitudinal strip-shaped structure, the other end of each second transverse strip-shaped structure is connected with a feed source of a metal carrier, and the second longitudinal strip-shaped structure and the radiation patch form the gap.

In a third possible implementation manner, the feed structure is an integrated structure formed by an arc-shaped structure and a strip-shaped structure, one end of the strip-shaped structure is connected with the feed source of the metal carrier, the other end of the strip-shaped structure is connected with the arc-shaped structure, the radiation patch is close to one side of the feed structure is provided with an arc-shaped opening, and the arc-shaped structure is located in the arc-shaped opening and formed with the arc-shaped opening.

Optionally, the feed structure is parallel to the setting surface of the antenna unit, the feed structure is connected with a feed source of the metal carrier through a feed pin, and the feed pin is perpendicular to the setting surface of the antenna unit.

Optionally, the antenna unit further includes:

On the basis that the antenna unit includes a parasitic structure, optionally, the antenna unit further includes:

the antenna comprises a first grounding pin, wherein one end of the first grounding pin is connected with the parasitic structure, the other end of the first grounding pin is connected with the metal carrier, the first grounding pin is perpendicular to the arrangement surface of the antenna unit, and the parasitic structure is grounded through the metal carrier.

Optionally, the antenna unit further includes:

A third aspect provides a base station comprising a radio transceiver apparatus as described in any of the above.

In the wireless transceiver device, the antenna unit, and the base station provided in the embodiments of the present invention, the feed structure and the radiation patch of each antenna unit in at least one antenna unit disposed at an edge of the metal carrier are both non-centrosymmetric structures, and the metal carrier is used as a reference ground of the antenna unit and is also non-centrosymmetric with respect to each antenna unit, so that for each antenna unit, the distribution of ground currents generated by the non-centrosymmetric radiation patch and the non-centrosymmetric reference ground may form relative centrosymmetry.

Drawings

Fig. 1 is a schematic structural diagram of a conventional omni-directional antenna unit provided in the related art;

fig. 2 is a schematic structural diagram of a conventional wireless transceiver provided in the related art;

fig. 3 is a schematic diagram of current distribution of a conventional omni-directional antenna unit provided in the related art;

fig. 4 is a schematic diagram of current distribution of an omni-directional antenna element in the wireless transceiver device provided in fig. 2;

fig. 5 is a simulation diagram of the directional patterns of the omni-directional antenna unit in the wireless transceiving apparatus shown in fig. 4;

fig. 6 is a schematic structural diagram of a wireless transceiver device according to an exemplary embodiment of the present invention;

fig. 7 is a schematic partial structural diagram of a wireless transceiver device according to an exemplary embodiment of the present invention;

fig. 8 is a partial structural diagram of another wireless transceiver device according to an exemplary embodiment of the present invention;

fig. 9 is a partial structural diagram of another wireless transceiver device according to an exemplary embodiment of the present invention;

fig. 10 is a schematic partial structural diagram of a wireless transceiver device according to another exemplary embodiment of the present invention;

fig. 11 is a partial structural diagram of another wireless transceiver device according to another exemplary embodiment of the present invention;

fig. 12 is a schematic partial structure diagram of another wireless transceiver according to another exemplary embodiment of the present invention;

fig. 13 is a partial structural schematic diagram of another wireless transceiver device according to another exemplary embodiment of the present invention;

fig. 14 is a left side view of the radio shown in fig. 7;

fig. 15 is a top view of the radio shown in fig. 7;

fig. 16 is a simulation diagram of the directivity pattern of an antenna element in the radio transceiver device of fig. 7;

fig. 17 is a partial structural schematic diagram of another wireless transceiver device according to another exemplary embodiment of the present invention;

fig. 18 is a partial structural diagram of another wireless transceiver device according to still another exemplary embodiment of the present invention;

fig. 19 is a schematic partial structure diagram of a wireless transceiver device according to still another exemplary embodiment of the present invention;

fig. 20 is a partial structural diagram of another wireless transceiver according to still another exemplary embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a general omni-directional antenna unit 10 provided in the related art, which may be referred to as a wideband monopole antenna unit, as shown in fig. 1, the omni-directional antenna unit 10 includes:

the antenna comprises a radiation piece 11, a short-circuit probe 12 with one end connected with the radiation piece 11 and the other end grounded, and a feed probe 13, wherein one end of the feed probe 13 is grounded, the other end and the radiation piece 11 form a gap H, and the radiation piece 11 and the feed probe 13 feed through the gap H, wherein the feed point is a point A.

Since the conventional omnidirectional antenna unit has a three-dimensional structure, the wireless transceiver including the omnidirectional antenna unit can be as shown in fig. 2, and fig. 2 is a schematic structural diagram of a conventional wireless transceiver 20, where the wireless transceiver 20 includes: at least one omnidirectional antenna unit 10, a carrier dielectric substrate (also called a radiating single board) 201, a shielding cover 202 and a metal carrier 203, where the metal carrier 203 is a housing, the carrier dielectric substrate 201 is disposed in the metal carrier 203, the shielding cover 202 is buckled above the metal carrier, the omnidirectional antenna unit 10 is formed on the shielding cover 202 or the metal carrier 203, and fig. 2 illustrates that the omnidirectional antenna unit 10 is formed on the shielding cover 202. As can be seen from fig. 2, the omnidirectional antenna unit 10 is a separately manufactured three-dimensional structure, and is disposed on the shielding cover 202 or the metal carrier 203 after the manufacturing is completed.

Generally, there are three structural symmetries associated with roundness of a transceiver: the symmetry of the antenna unit body, the symmetry of the mounting position, and the symmetry of the metal carrier. The roundness of a radio transceiver is generally better if these three symmetries are simultaneously fulfilled, i.e. a centrosymmetric (also called rotationally symmetric) omnidirectional antenna element is placed on a centrosymmetric metal carrier in a centrosymmetric manner. But if one of these three symmetries is broken, the roundness generally deteriorates. In practical application, due to the convenience of processing, the metal carrier has a central symmetrical structure, such as a square structure or a circular structure, and the shielding cover buckled on the metal carrier also has a central symmetrical structure. Alternatively, the metal carrier may be a central symmetrical prismatic structure, the edges of which may be rounded or bevelled for aesthetic reasons.

In a conventional transceiver, if an omnidirectional antenna unit is installed, the omnidirectional antenna unit is usually disposed at the center of a metal carrier, for example, the omnidirectional antenna unit is disposed on a shielding cover of the transceiver with central symmetry, and a radiating sheet or a radiator of the antenna unit is designed to be a central symmetrical structure, besides, the antenna unit with a symmetrical structure is disposed at the center of a reference ground (such as the ground marked in fig. 3), and the antenna unit has similar radiation characteristics on a cross section parallel to the reference ground due to structural symmetry, so as to achieve high roundness performance. The corresponding current distribution diagram is shown in fig. 3, and the ground currents of the antenna units are distributed in a central symmetry mode. However, if the antenna element is not disposed at the center of the metal carrier, the symmetry of the antenna element with respect to the metal carrier cannot be ensured, thereby inevitably resulting in non-centrosymmetric distribution of ground current, resulting in deterioration of the circularity of the pattern of the antenna element.

In practical applications, in order to achieve multi-band coverage and multi-channel signal transmission, a wireless transceiver generally needs to be equipped with at least two omnidirectional antenna units, and at this time, under the condition of multiple antenna units, there are antenna units that are not disposed at the center of a metal carrier inevitably, and since the symmetry of each antenna unit with respect to a reference ground cannot be guaranteed, the circularity of a directional pattern of a conventional wireless transceiver with multiple antenna units is poor.

Fig. 4 is a schematic view of current distribution of an antenna unit in a scenario that the omnidirectional antenna units are disposed at four corners of the shielding cover shown in fig. 2, the metal carrier is used as a reference ground of the antenna unit (such as a ground marked in fig. 4), which is not centrosymmetric with respect to each antenna unit, and a ground current of each antenna unit also presents a non-centrosymmetric distribution, accordingly, a simulation diagram of a directional diagram of the antenna unit may be as shown in fig. 5, roundness of the directional diagram corresponding to different broadband in fig. 5 is as shown in table 1, a cross section of a three-dimensional directional diagram at an angle Theta in a horizontal plane direction is taken, a value range of the Theta is usually 0 ° to 180 °, and a frequency value recorded in table 1 is a frequency value corresponding to a frequency point of the antenna unit in normal operation. Theta cross section roundness represents the difference between the maximum value and the minimum value of the level (unit: dB) of the directivity diagram at an angle Theta. In addition, in consideration of coverage, attention is generally paid to a cross section where Theta is 80 °, and the Theta is 80 ° indicating that an angle to the vertical direction in a polar coordinate system is 80 °. As can be seen from the simulation diagram shown in fig. 5 and table 1, in the case of the four-corner layout of the metal carrier, the conventional broadband monopole antenna unit has a non-centrosymmetric distribution of the ground current on the metal carrier due to the non-centrosymmetric distribution of the antenna unit with respect to the carrier, thereby forming a deep pattern depression in the diagonal direction of the metal carrier, resulting in a sharp deterioration of the roundness of the pattern, which is at worst 10.9dB (decibel) in the broadband range of 1.7-2.7 GHz. The fluctuation degree of the directional diagram far exceeds the fluctuation range accepted by communication operators, and huge horizontal section directional diagram fluctuation can form communication blind areas in certain angle ranges, so that the coverage range is reduced, and the communication capacity is reduced.

TABLE 1

Frequency (GHz)	Theta 80 degree section roundness (dB)
		1.7	4.2
1.9	5.8
		2.1	7.6
2.3	9.7
		2.5	10.9
2.7	8.9

Fig. 6 is a schematic structural diagram of a wireless transceiver 30 according to an exemplary embodiment of the present invention, and as shown in fig. 6, the wireless transceiver 30 may include:

a metal carrier 301 and at least one antenna element 302 arranged at an edge of the metal carrier 301. The edge refers to a non-center of the metal carrier, that is, when the metal carrier is in a centrosymmetric structure, the antenna unit is located at the non-center, and when the metal carrier is in a non-centrosymmetric structure, the antenna unit is located on the metal carrier if the antenna unit does not have a center. Alternatively, the antenna element 302 may be located at a corner of the metal carrier 301 or at an edge of the metal carrier. As shown in a dashed line box U in fig. 6, inside the dashed line box U is an enlarged view of one antenna element 302 disposed at an edge of the metal carrier 301, each antenna element 302 including a feed structure 3021 and a radiating patch 3022; the feed structure 3021 and the radiating patch 3022 are both non-centrosymmetric structures. Alternatively, the feed structure 3021 and the radiating patch 3022 may both be axisymmetric structures. It should be noted that the metal carrier in the embodiments of the present invention may have various structures, and the metal carrier can be used as a reference ground of the antenna unit, and it may be a metal housing of the transceiver, a circuit board (such as a dielectric substrate), a heat sink, and so on.

The radiating patch 3022 is fed through the feed structure 3021 and the radiating patch 3022 is grounded.

In practical applications, the radiation patch 3022 can generate electromagnetic oscillation (also referred to as resonance) with the installation surface Q of the antenna unit 302. The radiation patch and the setting surface Q of the antenna unit 302 form a capacitor and an inductor, and electromagnetic oscillation is excited by the capacitor and the inductor.

In addition, in the embodiment of the present invention, the metal carrier and the antenna element are matched to achieve an actual high roundness of the antenna element, that is, the antenna element is disposed at the edge of the metal carrier as a factor for improving the roundness of the antenna element, and it can be considered that the metal carrier is integrally designed with the antenna element body as another radiating arm of the antenna element, and the asymmetry of the radiating patch and the feed structure of the metal carrier is used to offset the roundness deterioration caused by the asymmetry of the reference ground, thereby achieving the high roundness performance of the antenna element.

Further, the metal carrier 301 is a shell with a central symmetry, the metal carrier 301 may further be sequentially stacked with a carrier dielectric substrate 303 and a shielding cover 304, the carrier dielectric substrate is used for carrying electronic components in the metal carrier, and the antenna unit 302 is disposed on the shielding cover 304 and located at an edge of the metal carrier 301. The shielding cover 304 is fastened over the carrier dielectric substrate 303 for shielding the rf circuitry from interfering with the external environment and the antenna unit. The carrier dielectric substrate 303 and the dielectric substrate 3023 may be made of the same material or different materials. In practice, as shown in fig. 6, the carrier dielectric substrate may also be disposed inside the metal carrier 301, and the shielding cover is fastened on the metal carrier 301. Optionally, the carrier medium substrate may be an epoxy resin board of type FR-4, the dielectric constant of which is 4.2; other materials are also possible.

In practical applications, the feeding structure and the radiating patch may be fed in various ways, such as direct feeding or coupled feeding. When the feed structure is in direct contact with the radiation patch, the feed structure and the radiation patch are directly fed, and the antenna unit adopting the feed mode can realize narrower standing wave bandwidth and has simple realization mode. While the coupled feed can extend the bandwidth of the antenna element.

A conventional omni-directional antenna unit, for example, the omni-directional antenna unit 10 shown in fig. 1, has a multi-antenna unit layout on a wireless transceiver device due to its structure, or can maintain good pattern roundness only in a narrow band range if it is metal-asymmetric, and has poor pattern roundness in a wide band range.

The directional diagram is a short-term directional diagram of an antenna unit, and refers to a diagram in which the relative field strength (normalized module value) of a radiation field changes with the direction at a certain distance from the antenna unit, and is usually represented by two mutually perpendicular plane directional diagrams in the maximum radiation direction of the antenna unit. The antenna element pattern is an important graph for measuring the performance of the antenna element, and various parameters of the antenna element can be observed from the antenna element pattern. The directivity pattern roundness (antenna pattern roundness) is also called directivity pattern non-roundness, and refers to the difference between the maximum value and the minimum value of the level (unit: dB) of each direction of the antenna unit in the horizontal plane directivity pattern.

In order to obtain a wide standing wave bandwidth for the antenna unit 302. In the embodiment of the present invention, as shown in fig. 6, a gap m may exist between the feed structure 3021 and the radiation patch 3022, for example, a gap m may exist between the front projection of the feed structure 3021 on the surface where the radiation patch 3022 is located and the radiation patch 3022, or an overlapping region may exist between the front projection of the feed structure 3021 on the surface where the radiation patch 3022 is located and the radiation patch 3022, but the two are not coplanar and do not fit, so that a gap m is generated, and the feed structure 3021 and the radiation patch 3022 are coupled and fed through the gap m. The antenna unit 302 can obtain a wide standing wave bandwidth by means of coupling feeding.

Further, the feed structure 3021 and the radiating patch 3022 may be shaped to match each other, ensuring efficient feeding therebetween. The following 4 possible implementation manners are taken as examples to illustrate the embodiment of the present invention:

a first possible implementation: as shown in fig. 6 or fig. 7, the feed structure 3021 is an E-shaped structure, the E-shaped structure is composed of a first longitudinal strip-shaped structure and 3 first transverse strip-shaped structures with one end disposed on the first longitudinal strip-shaped structure at an interval, an opening of the E-shaped structure deviates from the radiation patch, the length of the first transverse strip-shaped structure located in the middle of the E-shaped structure is greater than the lengths of the other 2 first transverse strip-shaped structures, the other end of the first transverse strip-shaped structure located in the middle of the E-shaped structure is connected with a feed source of a metal carrier, and a gap is formed between the first longitudinal strip-shaped structure and the radiation patch 3022. The feed source, which is also a feed source, may be a signal transmission port of a metal carrier, and is usually connected to an input/output port of a transceiver.

A second possible implementation: as shown in fig. 8, the feed structure 3021 is a T-shaped structure, the T-shaped structure is composed of a second longitudinal strip structure and 1 second transverse strip structure, one end of each second transverse strip structure extends outwards from the middle of the second longitudinal strip structure, the other end of each second transverse strip structure is connected to the feed source of the metal carrier, and a gap is formed between each second longitudinal strip structure and the corresponding radiation patch 3022.

A third possible implementation: as shown in fig. 9, the feed structure 3021 may also be an integrated structure composed of an arc structure 30211 and a strip structure 30212, one end of the strip structure 30212 is connected to a feed source of a metal carrier, and the other end is connected to the arc structure 30211, an arc opening is provided on a side of the radiation patch 3022 close to the feed structure 3021, the arc structure 30211 is matched with the arc opening, and the arc structure 30211 is located in the arc opening and forms a slot for coupling with the arc opening.

A fourth possible implementation: as shown in fig. 10, the feed structure 3021 may also be an arc-shaped strip structure, an outer side of the feed structure 3021 is connected to a feed source of a metal carrier, and an inner side of the feed structure 3021 forms a slot with the radiation patch 3022.

It should be noted that other matching situations may exist in the shapes of the feed structure 3021 and the radiation patch 3022, and the embodiment of the present invention is only schematically illustrated, and any modification, equivalent replacement, improvement, and the like based on the matching situations provided by the present invention should be included in the protection scope of the present invention, and therefore, the embodiment of the present invention is not described herein again.

As shown in fig. 6 to 10, the feed structure 3021 may be connected to the feed of the metal carrier 301 through a feed pin 3027, and the feed pin 3027 is perpendicular to the installation surface of the antenna element 302.

Further, as shown in fig. 7 to 10, the antenna unit 302 may further include a dielectric substrate 3023. Optionally, the dielectric substrate may be an epoxy resin board of type FR-4, and the dielectric constant of the epoxy resin board is 4.2, or may be made of other materials. The dielectric substrate 3023 is used to support the radiation patch 3022 and the feeding structure 3021, that is, the radiation patch 3022 is disposed on the dielectric substrate 3023, and the plate surface W of the dielectric substrate may be parallel to the arrangement surface of the antenna unit. A capacitance may be formed between the two parallel faces. The feed structure 3021 may be provided in whole or in part on the dielectric substrate 3023. As shown in fig. 9, the radiation patch 3022 is bonded to the plate surface W of the dielectric substrate 3023 (i.e., either of the two surfaces of the dielectric substrate 3023 having the largest surface area), and the surface of the radiation patch is parallel to the installation surface Q of the antenna unit 302, so that a capacitance can be generated between the two parallel surfaces.

Further, as shown in fig. 8 and 9, the antenna unit 302 may further include:

a parasitic structure 3024, the parasitic structure 3024 being located on a plane parallel to the plane of arrangement of the antenna element, for example, the parasitic structure 3024 may be supported by some supporting structure, and arranged on a plane parallel to the plane of arrangement of the antenna element; or directly on the surface of the dielectric substrate 3023, the dielectric substrate is parallel to the bottom surface of the recess, the parasitic structure 3024 is grounded, and there may be a gap n between the parasitic structure 3024 and the radiation patch 3022, for example, there may be a gap n between the parasitic structure 3024 and the radiation patch 3022 in the orthographic projection of the surface of the radiation patch 3022, or there may be an overlapping region between the orthographic projection of the parasitic structure 3024 on the surface of the radiation patch 3022 and the radiation patch 3022, but the two are not coplanar and do not adhere to each other, so that a gap n is generated, and the parasitic structure 3024 and the radiation patch 3022 are coupled and fed through the gap n. Parasitic structure 3024 can form electromagnetic oscillation with the face of setting of antenna element, and antenna element has increased parasitic structure on the basis of radiation paster, and both homoenergetic form electromagnetic oscillation with the face of setting of antenna element, and the area of antenna element's whole resonance is directly correlated with its bandwidth, consequently, can further expand antenna element's bandwidth on the basis of guaranteeing the less volume of antenna element through radiation paster and parasitic structure's coupling feed. Moreover, the parasitic structure 3024 may also be non-centrosymmetric, which further ensures the circularity of the pattern of the antenna unit.

Optionally, as shown in fig. 8 or fig. 9, the antenna unit 302 may further include:

the first ground pin 3025, one end of the first ground pin 3025 is connected to the parasitic structure 3024, the other end is connected to the metal carrier 301, the first ground pin 3025 is perpendicular to the mounting surface of the antenna unit, and the parasitic structure 3024 is grounded through the metal carrier 301. The parasitic structure can be arranged in parallel with the arrangement surface of the antenna unit to form a capacitor with the arrangement surface, then the first grounding pin is arranged to form an inductor between the parasitic structure and the arrangement surface, so that electromagnetic oscillation is excited, in addition, the first grounding pin is arranged, the parasitic structure can be electrically connected with the metal carrier through a shorter path, the parasitic structure can be supported, and the manufacturing process is simpler.

In the embodiment of the invention, the feeding modes of the radiating patch and the parasitic structure can be various, such as direct feeding or coupled feeding, and the bandwidth of the antenna unit can be expanded by adopting two feeding modes. As shown in fig. 11, the radiation patch 3022 directly contacts the parasitic structure 3024, and the two are directly fed, and the radiation patch 3022 adopting such a feeding manner can directly realize grounding through the first grounding pin 3025 connected to the parasitic structure without requiring a lateral grounding wire, and the first grounding pin can also form a strong inductance between the radiation patch and the installation surface of the antenna unit, thereby ensuring that the radiation patch and the installation surface of the antenna unit generate electromagnetic oscillation.

As shown in fig. 8 or 9, there is a gap n between the parasitic structure 3024 and the radiating patch 3022, and the parasitic structure 3024 and the radiating patch 3022 are coupled to be fed through the gap n. The antenna unit 302 can obtain a wide standing wave bandwidth by means of coupling feeding. When the parasitic structure 3024 and the radiation patch 3022 are coupled and fed, they are not in contact with each other, so that the radiation patch 3022 cannot be grounded through the parasitic structure 3024, and needs to be grounded through a ground line or a ground pin.

It should be noted that, due to the performance of the parasitic structure itself, the area of the parasitic structure when using direct feeding is larger than that when using coupled feeding, and in order to reduce the overall volume of the antenna unit, the parasitic structure and the radiating patch are usually fed by using coupled feeding.

Further, the parasitic structure 3024 and the radiating patch 3022 may be shaped to match each other, thereby ensuring effective power feeding therebetween. For example, when the antenna unit 302 is fed by coupling the parasitic structure 3024 and the radiation patch 3022, the parasitic structure 3024 and the radiation patch 3022 may be arranged in a matching manner to ensure that a proper gap exists between the two. As shown in fig. 9, the parasitic structure 3024 has a fan-shaped structure, the radiation patch 3022 has a semi-ring-shaped structure, and the center of the radiation patch 3022 and the center of the parasitic structure 3024 are located on the same side of the radiation patch 3022. Optionally, the two circle centers are close to the corners of the antenna unit, so that the size of the whole antenna unit can be reduced. As shown in fig. 8, the parasitic structure 3024 has a triangular structure, the radiation patch 3022 has a polygonal structure, and two sides of the radiation patch 3022 and the parasitic structure 3024 close to each other are parallel. For another example, when the antenna unit 302 is directly fed by using the parasitic structure 3024 and the radiation patch 3022, the parasitic structure 3024 and the radiation patch 3022 may be configured in a matching manner, so as to ensure that the two are effectively connected. As shown in fig. 11, the parasitic structure 3024 has a fan-shaped structure, the radiation patch 3022 has a semi-ring-shaped structure, and the center of the radiation patch 3022 and the center of the parasitic structure 3024 are located on the same side of the radiation patch 3022. Wherein the outer edge of the fan-shaped structure overlaps the inner edge of the semi-annular structure. In fig. 11, the parasitic structure 3024 and the radiation patch 3022 may be located on the same side of the dielectric substrate, and the parasitic structure 3024 and the radiation patch 3022 are partially overlapped, and they are electrically connected by the contact of the overlapped portion, for example, the parasitic structure 3024 and the radiation patch 3022 are located on the lower surface of the dielectric substrate, and the upper surface of the parasitic structure 3024 and the lower surface of the radiation patch 3022 are partially overlapped.

It should be noted that other matching situations can exist in the shapes of the parasitic structure 3024 and the radiation patch 3022, and the embodiment of the present invention is only schematically illustrated, and any modification, equivalent replacement, improvement, and the like based on the matching situations provided by the present invention should be included in the protection scope of the present invention, and therefore, the embodiment of the present invention is not described herein again.

It should be noted that the radiating patch 3022 may be grounded by using a ground pin. Optionally, as shown in fig. 7, the antenna unit 302 may further include: a second ground pin 3026 disposed on at least one side of the radiation patch 3022, the second ground pin 3026 may be made of metal, one end of the second ground pin 3026 is connected to the radiation patch 3022, the other end is connected to the metal carrier 301, the second ground pin 3025 is perpendicular to the mounting surface of the antenna unit, and the radiation patch 3022 is grounded through the metal carrier 301. As an example, fig. 7 illustrates that the antenna unit 302 is provided with 2 second ground pins 3026, and the 2 second ground pins 3026 are symmetrically arranged on two sides of the radiation patch 3022. Through setting up this second ground pin 3026, the radiation patch can be through the setting face parallel arrangement with antenna unit, form electric capacity with this setting face, this second ground pin of rethread setting up makes the radiation patch form the inductance with this setting face within a definite time, and then arouses the electromagnetic oscillation to, this second ground pin not only can make the radiation patch be connected with the metal carrier electricity through shorter route, can also support the medium base plate, prevents that the medium base plate from warping, and its manufacturing process is also fairly simple. And 2 second ground pins 3026 are symmetrically arranged on two sides of the radiating patch 3022, so that the size of the antenna unit can be effectively reduced, and the bandwidth can be expanded.

In practical applications, the relative positions of the radiation patch, the feed structure, and the parasitic structure on the dielectric substrate may be set according to specific situations, two of the radiation patch, the feed structure, and the parasitic structure may be located on one side of the dielectric substrate, one of the radiation patch, the feed structure, and the parasitic structure may be located on the other side of the dielectric substrate, or three of the radiation patch, the feed structure, and the parasitic structure may be located on the same side of the dielectric substrate, as shown in fig. 8 or 9, the radiation patch 3022 and the feed structure 3021 are located on one side; as shown in fig. 11, the radiating patch 3022 and the parasitic structure 3024 are located on one side of the dielectric substrate 3023, and the feeding structure 3021 is located on the other side of the dielectric substrate 3023. Such as radiating patches and parasitic structures, are located on the lower surface of the dielectric substrate and the feed structure is located on the upper surface of the dielectric substrate.

Of course, when no parasitic structure is disposed on the transceiver device, the relative positions of the radiation patch 3022 and the feeding structure 3021 on the dielectric substrate may be set as the case may be, and both may be respectively located on both sides of the dielectric substrate 3023, or both may be located on the same side of the dielectric substrate 3023, as shown in fig. 6 or fig. 7, and the radiation patch 3022 and the feeding structure 3021 are located on the same side of the dielectric substrate 3023; as shown in fig. 12, the radiating patch and the feeding structure are respectively located on both sides of the dielectric substrate. In fig. 12, a radiation patch 3022 is located on the lower surface of a dielectric substrate 3023, and the radiation patch has a semi-annular structure.

In practical applications, the wireless transceiver 30 may also include a shielding cover as shown in fig. 13, the carrier medium substrate is directly fastened to the metal carrier or the medium substrate is disposed inside the metal carrier, and if there is a component requiring a shielding structure in each component inside the metal carrier, a small shielding cover may be fastened outside the component to avoid mutual interference between the component and the external environment. As shown in fig. 13, a recess 3011 is formed at the edge of the metal carrier, the antenna unit 302 is disposed in the recess 3011, the dielectric substrate 3023 of the antenna unit 302 and the carrier dielectric substrate 303 on the metal carrier are of an integral structure, and since the wireless transceiver device 30 is not provided with a shielding cover, the overall thickness of the wireless transceiver device can be reduced, and the volume of the wireless transceiver device is correspondingly reduced.

It should be noted that, in the embodiment of the present invention, the antenna unit 302 may be directly disposed on the metal carrier 301, or may be disposed on the carrier dielectric substrate 303 or the shielding cover 304 on the metal carrier 301, but both are located in an edge area of the metal carrier 301, and the disposing surface of the antenna unit 302 includes a metal surface, so that a capacitor can be formed with the radiation patch, and therefore, in the embodiment of the present invention, the disposing surface of the antenna unit 302 may be an upper plane of the metal carrier 301, an upper plane of the carrier dielectric substrate 303 (on which the metal area is located) or an upper plane of the shielding cover 304. The radiation patch or the parasitic structure is grounded through the metal carrier, which means that the radiation patch may be directly connected to the metal carrier through the second ground pin, or may be indirectly connected to the metal carrier through a ground line or a ground pin disposed on the carrier dielectric substrate 303 or the shielding cover 304, and the shielding cover and the carrier dielectric substrate are connected to the metal ground of the metal carrier.

Optionally, the bottom of the metal carrier may be further provided with a heat dissipation tooth, and the heat dissipation tooth is used for heat dissipation of the metal carrier.

It should be noted that, with the omnidirectional antenna unit in the wireless transceiver provided in the embodiment of the present invention, a Voltage Standing Wave Ratio (VSWR) may be less than 2.5, and a Standing Wave bandwidth may be greater than 45%.

Further, as shown in fig. 7, the top of the feeding structure 3021 may be connected to the feed of the metal carrier 301 through a feeding pin 3027, and the feeding pin 3027 is perpendicular to the setting plane Q of the antenna element 302. The feed structure 3021 is parallel to the installation surface Q of the antenna element 302. As shown in fig. 7, a feed structure 3021 and a radiation patch 3022 are printed on the upper surface of a dielectric substrate 3023, and a signal (which can also be regarded as energy) of a feed source is fed from the feed structure 3021 and coupled to the radiation patch 3022 by slot coupling. Moreover, a second ground pin 3026 is disposed on both sides of the radiation patch 3022, the second ground pin 3026 connects the radiation patch 3022 to the metal carrier 301, and the overall structure of the antenna unit is relatively independent of the metal carrier. The sizes of all parts are adjusted, so that the antenna unit can obtain a standing wave bandwidth (VSWR <2.5) of > 45%, and meanwhile, the directional diagram of the antenna unit can realize better roundness performance in the bandwidth range.

Fig. 14 and 15 are a left side view and a top view of the radio transceiver 30 shown in fig. 7, respectively, and fig. 14 and 15 illustrate various structural parameters of an antenna unit in the radio transceiver 30. As shown in fig. 14, the distance between the upper surface of the dielectric substrate 3023 and the installation surface of the antenna unit is h, the projected distance between the second ground pin 3026 and the center of the radiation patch 3022 is ps, the width of each second ground pin 3026 is ws, and the distance from the second ground pin 3026 to the feed pin 3027 is pf, as shown in fig. 14, the plan view of the dielectric substrate 3023 is a square with one corner cut off by an isosceles right triangle, the side length of the square is c0, and the waist length of the isosceles right triangle is c0-c 1; the radiation patch 3022 of a half-ring shape (which may also be regarded as a quarter-ring shape) has an inner diameter r1, an outer diameter r2, and a central angle of 90 °, and the centers of the radiation patches 3022 of the half-ring shape (which may also be regarded as a quarter-ring shape) are both r0 apart from both sides of the dielectric substrate 3023; the radiation patch 3022 has an E-shaped structure, the first longitudinal strip structure of the radiation patch 3022 has a semi-annular structure, the semi-annular structure has an inner diameter of r3, an outer diameter of r4, a central angle of a, a first transverse strip structure located at the outer edge of the E-shaped structure, a length of la and a width of wa, and a first transverse strip structure located in the middle of the E-shaped structure, has a length of lf and a width of wf.

The dimensions of the respective configuration parameters of the antenna unit in the radio transmitting/receiving device 30 shown in fig. 7 are shown in table 2. Where λ l is the wavelength corresponding to the lowest operating frequency of the antenna unit in the wireless transceiver 30, and r1 is (0.073 λ l, 0.109 λ l) to indicate that r1 is in the range of 0.073 λ l to 0.109 λ l.

TABLE 2

Structural parameters	Size of	Structural parameters	Size of
				h	0.057λl	pf	0.0285λl
c0	0.217λl	wa	0.0132λl
				c1	0.162λl	ws	0.0227λl
r0	0.0171λl	wf	0.0160λl
				r1	0.073-0.109λl	la	0.0456λl
r2	0.127-0.191λl	ps	0.0413λl
				r3	0.141-0.211λl	lf	0.0233λl
r4	0.15-0.226λl	a	15.3deg

TABLE 3

Frequency (GHz)	Theta 80 degree section roundness (dB)
		1.7	3.5
1.9	3.1
		2.1	3.0
2.3	3.2
		2.5	2.6
2.7	5.5

When the dimensions of the respective configuration parameters of the antenna unit in the radio transceiver device 30 in fig. 7 are shown in table 2, the simulated pattern of the antenna unit may be shown in fig. 16, and the circularities of the pattern corresponding to different frequency points in fig. 16 may be shown in table 3. As can be seen from the above simulation and table 3, the roundness of the antenna unit in the radio transceiver device 30 shown in fig. 7 is at least 5.5dB in the wide band range of 1.7 to 2.7 GHz. The directional diagram has small fluctuation, can realize a large coverage area, and improves the communication capacity.

It should be noted that the structure of the wireless transceiver 30 in the embodiment of the present invention is schematically illustrated, and in practical applications, various components in the wireless transceiver 30 in fig. 6 to 13 and the like may be combined or replaced, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention, and the present invention is not repeated herein.

It should be noted that the size of the wireless transceiver provided in the embodiment of the present invention is only schematically illustrated, and is mainly used to ensure that the antenna unit obtains a standing wave bandwidth of > 45% (VSWR < 2.5).

The wireless transceiver provided by the embodiment of the invention has a simple structure and is convenient to assemble. The radiation patch, the feed structure and the like can be integrally formed on the dielectric substrate and then mounted on the metal carrier or the shielding cover, the shielding cover can be buckled on the metal carrier after the carrier dielectric substrate is mounted, and the radiation patch, the feed structure and the like can be integrally formed on the dielectric substrate instead of a separately formed three-dimensional structure, so that the structure is simple and convenient to assemble.

It should be noted that the ground pins provided in the embodiment of the present invention, such as the first ground pin and the second ground pin, not only have a supporting function, but also have a conductive function (which may also be regarded as a grounding function), in practical applications, a ground wire may also be used for replacement, the ground wire usually only has a conductive function (which may also be regarded as a grounding function), and the number of the ground pins and the arrangement position thereof may be appropriately adjusted according to the actual arrangement condition of the antenna unit, such as stability, occupied space, and the like, the number of the ground pins is usually 1 or 2, for example, as shown in fig. 8, one side of the radiation patch 3022 is provided with the second ground pin 3026, and the other side of the radiation patch is provided with the feeding structure 3021; for another example, as shown in fig. 9 or 10, 2 second ground pins 3026 are provided, 2 second ground pins 3026 are symmetrically disposed on both sides of the radiation patch 3022 and are respectively connected to the metal ground of the dielectric substrate 3023, the feed structure 3021 is an axisymmetric structure, and the symmetry axis of the feed structure 3021 is coaxial with the symmetry axis of the 2 second ground pins 3026, so that the roundness of the pattern can be controlled more easily; for another example, fig. 17 is a schematic structural diagram of a transceiver device provided with a second ground pin 3026. As shown in fig. 8 and 9, the radiation patch may be provided with an extension r connected to the second ground pin 3026, and as shown in fig. 18 and 19, the radiation patch may be directly connected to the second ground pin 3026.

As shown in fig. 18 or 19, the feed structure 3021 is parallel to the installation surface Q of the antenna element 302. A feed structure 3021 and a radiation patch 3022 are printed on the upper surface of the dielectric substrate 3023, and a signal of the feed source is fed from the feed structure 3021 and coupled to the radiation patch 3022 by slot coupling. Moreover, a second ground pin 3026 is disposed on both sides of the radiation patch 3022, the second ground pin 3026 connects the radiation patch 3022 to the metal carrier 301, and the overall structure of the antenna unit is relatively independent of the metal carrier. The sizes of all parts are adjusted, so that the antenna unit can obtain a standing wave bandwidth (VSWR <2.5) of > 45%, and meanwhile, the directional diagram of the antenna unit can realize better roundness performance in the bandwidth range.

It should be noted that, in the wireless transceiver device provided in fig. 6 to 13 and the like in the embodiment of the present invention, the antenna unit may include or may not include a dielectric substrate, and the dielectric substrate is used to carry the radiation patch and the feed structure. When the antenna unit includes the dielectric substrate, the radiation patch may cause electromagnetic oscillation with the bottom surface of the groove through the dielectric substrate, and when the antenna unit does not include the dielectric substrate, the radiation patch may cause electromagnetic oscillation with the bottom surface of the groove through other manners, for example, as shown in fig. 6 or fig. 20, fig. 20 may be regarded as a schematic structural diagram of the antenna unit in fig. 7 without the dielectric substrate, and as seen in fig. 20, the radiation patch 3022 may be supported by the second ground pin 3026, and the feed structure 3021 is supported by the feed pin 3027, so as to ensure that the radiation patch 3022 and the installation surface of the antenna unit generate electromagnetic oscillation; alternatively, the radiation patch and/or the feed structure may be supported by a plastic structure, so that the radiation patch 3022 and the installation surface of the antenna unit generate electromagnetic oscillation. The structure of the radio transceiver in other embodiments may also be modified adaptively with reference to fig. 20, which is not limited in the embodiments of the present invention. Similarly, when the antenna unit includes the dielectric substrate, the parasitic structure may cause the parasitic structure to generate electromagnetic oscillation with the bottom surface of the groove through the dielectric substrate, and when the antenna unit does not include the dielectric substrate, the parasitic structure may cause the parasitic structure to generate electromagnetic oscillation with the bottom surface of the groove through other manners, for example, a ground pin supporting the parasitic structure is provided or a plastic structure is adopted to support the parasitic structure. The embodiments of the present invention will not be described in detail.

As shown in fig. 20, the feed structure 3021 is parallel to the installation surface Q of the antenna element 302. A feed structure 3021 and a radiation patch 3022 are printed on the upper surface of the dielectric substrate 3023, and a signal is fed from the feed structure 3021 and coupled to the radiation patch 3022 by slot coupling. Moreover, a second ground pin 3026 is disposed on both sides of the radiation patch 3022, the second ground pin 3026 connects the radiation patch 3022 to the metal carrier 301, and the overall structure of the antenna unit is relatively independent of the metal carrier. The sizes of all parts are adjusted, so that the antenna unit can obtain a standing wave bandwidth (VSWR <2.5) of > 45%, and meanwhile, the directional diagram of the antenna unit can realize better roundness performance in the bandwidth range.

In the wireless transceiver device provided in the embodiment of the present invention, the feed structure and the radiation patch of each antenna unit in at least one antenna unit disposed at the edge of the metal carrier are both non-centrosymmetric structures, and the metal carrier is used as a reference ground of the antenna unit and is also non-centrosymmetric with respect to each antenna unit, so that for each antenna unit, the distribution of ground currents generated by the non-centrosymmetric radiation patch and the non-centrosymmetric reference ground can form relative centrosymmetry. And, because the improvement of directional diagram circularity, can further improve the even degree of signal coverage, avoid appearing the coverage blind area around the antenna element. Meanwhile, according to the wireless transceiver provided by the embodiment of the invention, as the antenna units are arranged at the edge of the wireless transceiver, the distance between the antenna units is large enough, and good balance is realized between the signal coverage and the correlation of the antenna units. Because the radiation patch and the feed structure of the antenna unit can be printed on the dielectric substrate, the size of the antenna unit is far smaller than that of the traditional antenna unit with the same bandwidth, and the miniaturization of an integrated antenna unit module is facilitated.

In the embodiment of the present invention, the transceiver may be installed with at least one omnidirectional antenna unit, each antenna unit may be the antenna unit 302 shown in fig. 6 to 13 and fig. 17 to 20, each antenna unit is installed at a non-central position of the metal carrier, such as at an edge of the metal carrier, but in order to achieve multi-band coverage and multi-channel signal transmission, the transceiver generally needs to be installed with at least two omnidirectional antenna units, one of the at least two omnidirectional antenna units may be the antenna unit shown in fig. 1 and installed at a central position of the metal carrier, and the other antenna units may be the antenna units 302 shown in fig. 6 to 13 and fig. 17 to 20 and installed at a non-central position of the metal carrier, generally at an edge of the metal carrier; alternatively, each of the at least two omnidirectional antenna units may be the antenna unit 302 shown in fig. 6 to 13 or fig. 17 to 20, which are all mounted at non-central positions on the metal carrier. Thus, at least one antenna element is arranged at the edge of the metal carrier.

An embodiment of the present invention provides an antenna unit, which may be an antenna unit 302 as shown in any one of fig. 6 to 13 and fig. 17 to 20, and the antenna unit may be mounted on a metal carrier, or may be mounted on other structures having a metal surface, such as a vehicle, where the embodiment of the present invention is described by taking as an example that the antenna unit is mounted on the metal carrier, and the antenna unit includes:

a feed structure and a radiating patch;

the radiating patch is fed through the feed structure and grounded.

Alternatively, the feed structure may take a variety of forms:

in a first possible implementation manner, the feed structure is an E-shaped structure, the E-shaped structure is composed of a first longitudinal strip-shaped structure and a first transverse strip-shaped structure with 3 ends arranged at intervals on the first longitudinal strip-shaped structure, an opening of the E-shaped structure deviates from the radiation patch, the length of the first transverse strip-shaped structure in the middle of the E-shaped structure is greater than the length of the other 2 first transverse strip-shaped structures, the other end of the first transverse strip-shaped structure in the middle of the E-shaped structure is connected with a feed source of a metal carrier, and a gap is formed between the first longitudinal strip-shaped structure and the radiation patch.

In a second possible implementation manner, the feed structure is a T-shaped structure, the T-shaped structure is composed of a second longitudinal strip-shaped structure and 1 second transverse strip-shaped structure, one end of each second transverse strip-shaped structure extends outwards from the middle of the second longitudinal strip-shaped structure, the other end of each second transverse strip-shaped structure is connected with the feed source of the metal carrier, and a gap is formed between each second longitudinal strip-shaped structure and the radiation patch.

In a third possible implementation manner, the feed structure is an integrated structure formed by an arc-shaped structure and a strip-shaped structure, one end of the strip-shaped structure is connected with the feed source of the metal carrier, the other end of the strip-shaped structure is connected with the arc-shaped structure, one side of the radiation patch, which is close to the feed structure, is provided with an arc-shaped opening, and the arc-shaped structure is located in the arc-shaped opening and forms a gap with the arc-shaped opening.

Optionally, the feed structure is parallel to the setting surface of the antenna unit, the feed structure is connected with the feed source of the metal carrier through the feed pin, and the feed pin is perpendicular to the setting surface of the antenna unit.

Furthermore, the antenna unit further comprises a dielectric substrate, and the radiation patch and the feed structure are both arranged on the dielectric substrate.

Optionally, the antenna unit further includes:

and the parasitic structure is positioned on a plane parallel to the arrangement plane of the antenna unit and is grounded. By adding parasitic structures, the bandwidth of the antenna element can be further expanded.

On the basis that the antenna unit includes the parasitic structure, optionally, the antenna unit further includes:

one end of the first grounding pin is connected with the parasitic structure, the other end of the first grounding pin is connected with the metal carrier, the first grounding pin is perpendicular to the arrangement surface of the antenna unit, and the parasitic structure is grounded through the metal carrier.

Optionally, the antenna unit further includes:

and one end of the second grounding pin is connected with the radiation patch, the other end of the second grounding pin is connected with the metal carrier, the second grounding pin is perpendicular to the setting surface of the antenna unit, and the radiation patch is grounded through the metal carrier.

In a possible implementation manner, one side of the radiation patch is provided with a second grounding pin, and the other side of the radiation patch is provided with a feed structure.

In another possible implementation manner, the number of the second ground pins is 2, and the 2 second ground pins are symmetrically arranged on two sides of the radiation patch.

In practical application, the feed structure is an axisymmetric structure, and a symmetry axis of the feed structure is coaxial with symmetry axes of the 2 second grounding pins.

It is clear to those skilled in the art that, for convenience and brevity of description, the above-described specific structure of the antenna unit may refer to the corresponding structure of the antenna unit 302 in the foregoing wireless transceiver, and is not described herein again.

An embodiment of the present invention provides a base station, which may include at least one wireless transceiver module provided in the embodiment of the present invention, and when the base station includes at least two wireless transceiver modules, each wireless transceiver module may be any one of the wireless transceiver devices in the above embodiments provided in the present invention. The base station is typically a base station located indoors. The base station using the wireless transceiver 30 in the embodiment of the present invention has the characteristics of wide operating frequency band and good omnidirectional performance, and can be installed in a stadium or shopping place to realize omnidirectional coverage of wireless signals in an indoor area.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wireless transceiver device, comprising:

the antenna comprises a metal carrier and at least one antenna unit arranged at the edge of the metal carrier, wherein each antenna unit comprises a feed structure and a radiation patch;

the feed structure and the radiation patch are both non-centrosymmetric structures, the feed structure is an arc strip-shaped structure, the outer side of the feed structure is connected with a feed source of the metal carrier, and a gap is formed between the inner side of the feed structure and the radiation patch;

the radiating patch is fed through the feed structure and grounded.

2. The wireless transceiver of claim 1,

the feed structure and the radiation patch are coupled and fed through the gap.

3. The wireless transceiver of claim 1, wherein the feed structure is an E-shaped structure, the E-shaped structure is composed of a first longitudinal bar structure and 3 first transverse bar structures with one ends spaced apart from the first longitudinal bar structure, an opening of the E-shaped structure faces away from the radiation patch, a length of the first transverse bar structure located in the middle of the E-shaped structure is greater than lengths of the other 2 first transverse bar structures, the other end of the first transverse bar structure located in the middle of the E-shaped structure is connected to the feed source of the metal carrier, and the first longitudinal bar structure and the radiation patch form a gap.

4. The wireless transceiver of claim 1, wherein the feeding structure is a T-shaped structure, the T-shaped structure comprises a second longitudinal strip-shaped structure and 1 second transverse strip-shaped structure with one end extending outwards from the middle of the second longitudinal strip-shaped structure, the other end of the second transverse strip-shaped structure is connected to the feeding source of the metal carrier, and the second longitudinal strip-shaped structure and the radiation patch form a gap.

5. The wireless transceiver device of claim 1, wherein the feed structure is an integrated structure of an arc-shaped structure and a strip-shaped structure, one end of the strip-shaped structure is connected to the feed source of the metal carrier, the other end of the strip-shaped structure is connected to the arc-shaped structure, an arc-shaped opening is disposed on one side of the radiation patch close to the feed structure, and the arc-shaped structure is located in the arc-shaped opening and forms a gap with the arc-shaped opening.

6. The wireless transceiver of any one of claims 1 to 5, wherein the feeding structure is parallel to the installation surface of the antenna unit, the feeding structure is connected to the feed of the metal carrier through a feeding pin, and the feeding pin is perpendicular to the installation surface of the antenna unit.

7. The transceiver of any one of claims 1 to 5, wherein the antenna element further comprises a dielectric substrate, and the radiating patch and the feeding structure are disposed on the dielectric substrate.

8. The wireless transceiver device of any one of claims 1 to 5, wherein the antenna unit further comprises:

and the parasitic structure is positioned on a plane parallel to the arrangement plane of the antenna unit, and is grounded.

9. The wireless transceiver of claim 8,

and a gap exists between the parasitic structure and the radiating patch, and the parasitic structure and the radiating patch are coupled and fed through the gap.

10. The wireless transceiver device of claim 8, wherein the antenna unit further comprises:

11. The wireless transceiver device of any one of claims 1 to 5, wherein the antenna unit further comprises:

12. The wireless transceiver of claim 11,

one side of the radiation patch is provided with the second grounding pin, and the other side of the radiation patch is provided with the feed structure.

13. The wireless transceiver of claim 11,

the number of the second grounding pins is 2, and the second grounding pins are symmetrically arranged on two sides of the radiation patch.

14. The wireless transceiver of claim 13,

the feed structure is an axisymmetrical structure, and a symmetry axis of the feed structure is coaxial with symmetry axes of the 2 second grounding pins.

15. The wireless transceiver of claim 8,

the parasitic structure is a non-centrosymmetric structure.

16. The wireless transceiver of claim 15,

the parasitic structure is of a fan-shaped structure, the radiation patch is of a semi-annular structure, and the circle center of the radiation patch and the circle center of the parasitic structure are located on the same side of the radiation patch.

17. The wireless transceiver device according to any one of claims 1 to 5,

the antenna unit is arranged on the shielding cover and located at the edge of the metal carrier, and the carrier medium substrate is used for bearing electronic components in the metal carrier.

18. An antenna unit, comprising:

a feed structure and a radiating patch;

the feed structure and the radiation patch are both in a non-centrosymmetric structure, the feed structure is in an arc strip structure, the outer side of the feed structure is connected with a feed source of a metal carrier, and a gap is formed between the inner side of the feed structure and the radiation patch;

the radiating patch is fed through the feed structure and grounded.

19. The antenna unit of claim 18,

the feed structure and the radiation patch are coupled and fed through the gap.

20. The antenna unit of claim 18, wherein the feed structure is an E-shaped structure, the E-shaped structure is composed of a first longitudinal bar structure and 3 first transverse bar structures with one ends spaced apart from the first longitudinal bar structure, an opening of the E-shaped structure faces away from the radiation patch, a length of the first transverse bar structure located in the middle of the E-shaped structure is greater than lengths of the other 2 first transverse bar structures, the other end of the first transverse bar structure located in the middle of the E-shaped structure is connected to a feed source of a metal carrier, and the first longitudinal bar structure and the radiation patch form a gap.

21. The antenna element of claim 18, wherein the feed structure is a T-shaped structure, the T-shaped structure comprises a second longitudinal strip structure and 1 second transverse strip structure with one end extending outwards from the middle of the second longitudinal strip structure, the other end of the second transverse strip structure is connected to the feed of the metal carrier, and the second longitudinal strip structure forms a gap with the radiating patch.

22. The antenna unit of claim 18, wherein the feeding structure is an integrated structure of an arc-shaped structure and a strip-shaped structure, one end of the strip-shaped structure is connected to a feed source of a metal carrier, the other end of the strip-shaped structure is connected to the arc-shaped structure, an arc-shaped opening is disposed on a side of the radiation patch close to the feeding structure, and the arc-shaped structure is located in the arc-shaped opening and forms a gap with the arc-shaped opening.

23. The antenna element according to any of claims 18 to 22, wherein the feeding structure is parallel to the installation surface of the antenna element, the feeding structure is connected to a feed of the metal carrier through a feeding pin, and the feeding pin is perpendicular to the installation surface of the antenna element.

24. The antenna element of any one of claims 18 to 22, further comprising a dielectric substrate, said radiating patch and said feed structure being disposed on said dielectric substrate.

25. The antenna unit of any one of claims 18 to 22, further comprising:

26. The antenna unit of claim 25,

27. The antenna unit of claim 25, further comprising:

28. The antenna unit of any one of claims 18 to 22, further comprising:

29. The antenna unit of claim 28,

30. The antenna unit of claim 28,

31. The antenna unit of claim 30,

32. The antenna unit of claim 25,

the parasitic structure is a non-centrosymmetric structure.

33. The antenna unit of claim 32,

34. A base station comprising the radio apparatus of any of claims 1 to 17.