CN211789463U - Multichannel wireless signal transceiver - Google Patents

Abstract

The application relates to a multichannel wireless signal transceiver, including high gain antenna device, antenna switch device, signal processing device and controller, high gain antenna device includes base plate and two or two above dual polarization inverted yagi antenna, and the quantity of antenna switch device and signal processing device is the same and be two or more. The dual-polarized inverted yagi antenna comprises an antenna axial rod, a dual-polarized reflector, a dual-polarized active oscillator and a dual-polarized director. Adopt the dual polarization to fall yagi antenna and constitute the antenna array, with high-gain antenna device design for three-dimensional group array structure for high-gain antenna device can form perpendicular plane wave beam, and through carrying out the dual polarization and invering to the antenna, the radiation direction of antenna is towards ground, makes ground can reflect the energy of radiating totally back, has reduced the dorsad radiation of antenna, and then has improved the whole gain of antenna, uses the reliability height.

Description

Multichannel wireless signal transceiver

Technical Field

The present application relates to the field of wireless technologies, and in particular, to a multichannel wireless signal transceiver.

Background

WIFI is a wireless local area network technology established in the IEEE 802.11 standard, and improves the interoperability between wireless network products based on the standard. WIFI belongs to a short-distance wireless technology, has the advantages of high transmission speed, low transmitting power, no need of wiring and the like, can meet personal and social informatization requirements, can automatically adjust bandwidth under the condition of weak signals, and effectively ensures the stability and reliability of a network.

The coverage range of the WIFI signal transmitted by the traditional WIFI signal transmission device is limited, a user cannot receive the WIFI signal in an area beyond the coverage range of the WIFI, normal use of the user is affected, and reliability is low.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a multi-channel wireless signal transceiver apparatus for solving the problem of low reliability of the conventional WIFI signal transmission device.

A multi-channel wireless signal transceiving equipment comprises a high-gain antenna device, an antenna switch device, a signal processing device and a controller, wherein the high-gain antenna device comprises a substrate and two or more than two dual-polarized inverted yagi antennas, and each dual-polarized inverted yagi antenna is arranged on the substrate; the number of the antenna switching devices and the number of the signal processing devices are the same and are two or more than two, each antenna switching device is respectively connected with a corresponding dual-polarized inverted yagi antenna, and each signal processing device is respectively connected with a corresponding antenna switching device and the controller; wherein:

the dual-polarized inverted yagi antenna comprises an antenna axial rod, a dual-polarized reflector, a dual-polarized active oscillator and a dual-polarized director;

the dual-polarized director, the dual-polarized active oscillator and the dual-polarized reflector are sequentially arranged on the antenna axial rod; the dual-polarized director is arranged at the near ground end of the antenna axial rod, and the dual-polarized reflector is arranged at the far ground end of the antenna axial rod; the near-ground end of the antenna axial rod is used for being arranged towards the ground, and the far-ground end of the antenna axial rod is arranged far away from the ground;

the dual-polarized director comprises a first director and a second director which are orthogonally arranged, the first director and the second director comprise a plurality of metal pieces arranged on the axial rod of the antenna, each metal piece is perpendicular to the axial rod of the antenna, a vertical foot is superposed with the midpoint of each metal piece, the length of each metal piece is shorter than that of the adjacent metal piece close to the dual-polarized active oscillator, and when the first director and the second director orthogonally form the dual-polarized director, every two metal pieces with the same length are kept orthogonal and are positioned in the same plane;

the dual-polarized reflector comprises a first reflector and a second reflector which are orthogonally arranged, the first reflector and the second reflector respectively comprise a metal piece arranged on two sides of the axial rod of the antenna, the metal piece of the dual-polarized reflector is perpendicular to the axial rod of the antenna, a foot is coincided with the midpoint of the metal piece, the first reflector and the first director are positioned in the same plane, the second reflector and the second director are positioned in the same plane, and the length of the metal piece of the dual-polarized reflector is longer than that of any metal piece of the dual-polarized director;

the dual-polarized active oscillator comprises two single-polarized active oscillators, namely a first active oscillator and a second active oscillator, which are orthogonally arranged, wherein the first active oscillator and the second active oscillator are respectively composed of two L-shaped metal pieces symmetrically arranged on two sides of an antenna axial rod, one arm of each L-shaped metal piece is a connecting arm and is attached to the antenna axial rod, a port of each connecting arm is connected with the dual-polarized reflector, the other arm of each L-shaped metal piece is a functional arm, and the length of each functional arm is longer than that of the director and shorter than that of the reflector; meanwhile, the first active oscillator and the first reflector are in the same plane, and the second active oscillator and the second reflector are in the same plane.

In one embodiment, dual-polarized inverted yagi antennas of different frequency bands are arranged on the substrate in a crossed manner.

In one embodiment, the dual-polarized inverted yagi antenna further comprises a reflection plate, and the reflection plate is arranged at the ground-proximal end of the antenna axial rod.

In one embodiment, the dual-polarized inverted yagi antenna further comprises a radome, wherein the radome is a cavity structure with one open end and the other closed end, and the open end is fixed on the reflector plate.

In one embodiment, the antenna axial rod is shaped as a square rod.

In one embodiment, the dual-polarized active element further comprises a feeding structure disposed on the first active element and a feeding structure disposed on the second active element, each of the feeding structures comprising:

the metal bump is arranged on one functional arm and used for receiving feed;

a coaxial line, one end port of which is connected with the metal bump and is used for transmitting current to the single-polarization active oscillator to drive the antenna to work;

the supporting piece is coated outside the coaxial line and used for isolating the coaxial line from the external environment;

and the metal shell is arranged outside the supporting piece, and meanwhile, one part of the metal shell is embedded into the functional arm without the metal lug.

In one embodiment, the dual-polarized inverted-yagi antenna further comprises a feed input component, and the feed input component is connected with the feed structure on the first active element and the feed structure on the second active element.

In one embodiment, the feed input component comprises a coaxial feed line connecting the feed structure on the first active element and the feed structure on the second active element.

In one embodiment, the feed input component comprises a balun feed arrangement connecting a feed structure on the first active element and a feed structure on the second active element.

In one embodiment, the dual-polarized inverted yagi antenna further includes a dielectric strip, the antenna axial rod includes a first feed assembly plate, a second feed assembly plate, a third feed assembly plate and a fourth feed assembly plate, the first feed assembly plate, the second feed assembly plate, the third feed assembly plate and the fourth feed assembly plate surround to form a cavity, and the dielectric strip is disposed in the cavity.

Above-mentioned multichannel wireless signal transceiver, high gain antenna device adopt the double polarization to fall yagi antenna and constitute the antenna array, and the double polarization falls yagi antenna is through designing novel reflector and active oscillator to adopt the double polarization structure, can effectively improve the antenna gain coefficient, the double polarization can also reduce signal transmission's polarization loss simultaneously, accurate received signal. Adopt the dual polarization to fall yagi antenna and constitute the antenna array, with high-gain antenna device design for three-dimensional group array structure for high-gain antenna device can form perpendicular plane wave beam, and through carrying out the dual polarization and invering to the antenna, the radiation direction of antenna is towards ground, makes ground can reflect the energy of radiating totally back, has reduced the dorsad radiation of antenna, and then has improved the whole gain of antenna, uses the reliability height.

Drawings

FIG. 1 is a block diagram of a multi-channel wireless signal transceiver device according to an embodiment;

FIG. 2 is a block diagram of a high gain antenna apparatus in one embodiment;

FIG. 3 is a schematic diagram of a dual-polarized inverted yagi antenna in one embodiment;

fig. 4 is a schematic distribution diagram of a dual-polarized inverted yagi antenna in another embodiment;

fig. 5 is a front view of the overall structure of a dual polarized inverted yagi antenna in one embodiment;

fig. 6 is a rear view of the overall structure of the dual polarized inverted yagi antenna of an embodiment;

fig. 7 is a schematic structural diagram of a dual-polarized inverted yagi antenna according to an embodiment;

fig. 8 is a front view of a dual polarized inverted yagi antenna in an embodiment;

FIG. 9 is a schematic diagram of an embodiment of an active element;

fig. 10 is a side view of a dual polarized inverted yagi antenna in an embodiment;

FIG. 11 is a schematic diagram of one direction of a feeding structure in one embodiment;

FIG. 12 is a schematic diagram of another direction of the feeding structure in one embodiment;

fig. 13 is a front view of the overall structure of a dual polarized inverted yagi antenna of another embodiment;

fig. 14 is a block diagram of a multi-channel wireless signal transceiving apparatus in another embodiment;

fig. 15 is a schematic diagram of a multi-channel wireless signal transceiving apparatus according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In one embodiment, a multi-channel wireless signal transceiving apparatus is provided, as shown in fig. 1 and fig. 2, including a high-gain antenna device 1, an antenna switch device 2, a signal processing device 3, and a controller 4, where the high-gain antenna device 1 includes a substrate 11 and two or more dual-polarized inverted-yagi antennas 12, and each dual-polarized inverted-yagi antenna 12 is disposed on the substrate 11; the number of the antenna switch devices 2 and the number of the signal processing devices 3 are the same and are two or more than two, each antenna switch device 2 is respectively connected with the corresponding dual-polarized inverted yagi antenna 12, and each signal processing device 3 is respectively connected with the corresponding antenna switch device 2 and the controller 4. When receiving a WIFI signal, the high-gain antenna device 1 can sense an electromagnetic signal in a space and then send the electromagnetic signal to the antenna switch device 2, the antenna switch device 2 transmits the signal to the signal processing device 3 for processing, and the processed signal is sent to the controller 4 for demodulation to obtain the WIFI signal, so that the WIFI signal is received. When the WIFI signal is sent, the controller 4 outputs a low-power weak radio frequency signal to the signal processing device 3 for processing, and the processed signal is radiated to the space through the high-gain antenna device 1 through the antenna switch device 2, so that the WIFI signal is sent. Specifically, the type of the controller 4 is not exclusive, and may be, for example, a CPLD (Complex Programmable Logic Device), an FPGA (Field Programmable Gate Array), or a single chip microcomputer. It is understood that in other embodiments, the controller 4 may employ other devices, as long as those skilled in the art recognize that the implementation is possible.

The signal processing device 3 is mainly used for processing signals flowing through, and the signal processing mode of the signal processing device 3 is different according to different actual requirements, and accordingly, the structure of the signal processing device 3 is not unique, for example, when the signal processing device 3 includes a filter, the signal can be filtered, it can be understood that in other embodiments, the signal processing device 3 may have other structures, which are determined according to user requirements, and have great flexibility. The number of the signal processing devices 3 is equal to the number of the antenna switching devices 2, and each signal processing device 3 is connected to a corresponding antenna switching device 2. In each signal channel, one signal processing device 3 is correspondingly connected with one antenna switch device 2, so that the independence of signal transmission among the channels can be kept, and the mutual interference of signals can be avoided.

The antenna switch device 2 can control the on-off between the high-gain antenna device 1 and the signal processing device 3, when the wireless signal transceiver needs to work, the antenna switch device 2 is switched on, signals can be normally transmitted between the high-gain antenna device 1 and the signal processing device 3, and when the antenna switch device 2 is switched off, the wireless signal transceiver is in a standby state. The number of the antenna switch devices 2 is more than two, and each antenna switch device 2 is connected with the corresponding dual-polarized inverted yagi antenna 12, further, the number of the dual-polarized inverted yagi antennas 12 connected with each antenna switch device 2 can be completely the same, can be partially the same, or can be completely different, each antenna switch device 2 is connected with the corresponding dual-polarized inverted yagi antenna 12 to form a signal transceiving channel, and a multi-input multi-output radio frequency front end structure is formed. In one embodiment, the number of the dual-polarized inverted yagi antennas 12 respectively connected to each antenna switch device 2 is different from each other, for example, the number of the dual-polarized inverted yagi antennas 12 connected to each antenna switch device 2 may be sequentially increased, and the corresponding signal transceiving channels may be selected to operate according to actual requirements, thereby improving the operation convenience of the multi-channel wireless signal transceiving equipment.

Specifically, the dual-polarized inverted yagi antenna 12 is vertically disposed on the substrate 11, the material of the substrate 11 is not exclusive and may be a metal plate or a plastic plate, and in this embodiment, the substrate 11 is a metal substrate, so as to improve the fixing reliability of the antenna. The frequency bands of the different dual-polarized inverted yagi antennas 12 may be the same or different. In this embodiment, the dual-polarized inverted yagi antennas 12 of different frequency bands are arranged in the substrate 11 in a crossed manner. As shown in fig. 3, the dual-polarized inverted yagi antenna 12 includes a frequency band 1 antenna and a frequency band 2 antenna, and the two antennas in different frequency bands are arranged in a crossed manner. The specific structural dimensions of the dual-polarized inverted-yagi antennas 12 in different frequency bands are different, as shown in fig. 4, a cross-twisting type high-gain array pattern diagram is shown between the dual-polarized inverted-yagi antennas 12 in different frequency bands, the frequency band 1 antenna is a low-frequency antenna and has a high height, and the frequency band 2 antenna is a high-frequency antenna and has a low height. The dual-polarized inverted yagi antenna 12 with different frequency bands is placed in a crossed mode, namely, the distance between two three-dimensional antenna units is enlarged, the effective aperture area is indirectly enlarged, and the antenna gain is improved.

As shown in fig. 5 and 6, the dual polarized inverted yagi antenna 12 includes a dual polarized director 110, a dual polarized active element 120, a dual polarized reflector 130, and an antenna axial rod 140. The dual-polarized director 110, the dual-polarized active element 120 and the dual-polarized reflector 130 are sequentially arranged on the antenna axial rod 140; the dual-polarized director 110 is arranged at the ground-proximal end of the antenna axial rod 140, and the dual-polarized reflector 130 is arranged at the ground-distal end of the antenna axial rod 140; the proximal end of the antenna axial rod 140 is configured to be disposed toward the ground, and the distal end of the antenna axial rod 140 is disposed away from the ground. The antenna axial rod 140 is a metal support rod, and may be in the shape of a round rod, a square rod, a track, or the like, and is used for mounting each component of the antenna. In one embodiment, the antenna axial rod 140 is square rod shaped.

As shown in fig. 7 and 8, for convenience of description, both ends of the antenna axial rod 140 are referred to as an a end and a B end, respectively, where the dual-polarized director 110 and the lens 400 are disposed and the dual-polarized reflector 130 is disposed. The number of dual-polarized directors 110 may be plural and the lengths thereof are different from each other, specifically, the length of each dual-polarized director 110 is gradually shortened from the a end to the B end, and the length of the dual-polarized reflector 130 is the longest, the length of the dual-polarized director 110 is slightly shorter than the dual-polarized reflector 130, and the length of the dual-polarized active oscillator 120 is the shortest.

The dual-polarized director 110 comprises a first director and a second director which are orthogonally arranged, and the first director and the second director comprise a plurality of metal pieces which are arranged on the antenna axial rod 140, wherein the metal pieces can be metal rods or metal strips. The metal member is perpendicular to the antenna axial rod 140, and the vertical leg coincides with the midpoint of the metal member, so that the two ends of the metal member are symmetrically disposed on the antenna axial rod 140. Meanwhile, the length relationship among the metal pieces is as follows: the lengths of the metal parts are different, and the length of each metal part is shorter than that of the adjacent metal part close to the dual-polarized active oscillator, namely the lengths of the metal parts are sequentially shortened along the direction from the end B to the end A; or the metal pieces can be divided into a plurality of groups along the direction from the end B to the end A, the length of the plurality of metal pieces in each group is the same, but the length of each group of metal pieces is shorter than that of the adjacent group of metal pieces close to the end B. Meanwhile, when the first director and the second director are orthogonally combined into the dual-polarized director, the metal pieces with the same length are also kept orthogonal and in the same plane, that is, the metal pieces with the same length form a cross shape as shown in the figure and are arranged on the antenna axial rod 140.

The dual-polarized reflector 130 includes a first reflector and a second reflector which are orthogonally arranged, the first reflector and the second reflector are the same, and each of the first reflector and the second reflector includes a metal member arranged on the antenna axial rod 140, the metal member is perpendicular to the antenna axial rod 140, and the vertical feet are overlapped with the middle point of the metal member, so that two ends of the metal member are symmetrically arranged on the antenna axial rod 140, and the first reflector and the second reflector are in the same plane. The length of the piece of metal of dual-polarized reflector 130 is longer than the length of any piece of metal of dual-polarized director 110.

As shown in fig. 9, the dual-polarized active element 120 includes two identical single-polarized active elements that are orthogonally disposed, that is, a first active element and a second active element, and each of the two same single-polarized active elements is composed of two L-shaped metal elements that are symmetrically disposed on two sides of the antenna axial rod 140, one of the arms of the L-shaped metal element is a connecting arm 121 attached to the antenna axial rod 140, and a port 122 on the connecting arm 121 is connected to a corresponding metal element of the dual-polarized reflector 130, that is, one L-shaped metal element of the first active element is connected to a metal element on one side of the first reflector, the other L-shaped metal element of the first active element is connected to a metal element on the other side of the first reflector, and the description of the second active element is omitted here. The length of the connecting arm 121 can be adjusted according to actual requirements, such as the wavelength of the signal transmitted and received by the antenna. The other arm of the L-shaped metal piece is a functional arm 123, and the length of the functional arm 123 is longer than that of the director and shorter than that of the reflector; meanwhile, the first active oscillator and the first reflector are in the same plane, and the second active oscillator and the second reflector are in the same plane. Specifically, the sum of the lengths of the two functional arms of the active element, which are disposed on the two sides of the antenna axial rod 140, is greater than the length of any one metal piece of the dual-polarized director 110, and is less than the length of the metal piece of the dual-polarized reflector 130. The angle between the connecting arm 121 and the functional arm 123 of the L-shaped metal member can be adjusted according to the actual signal transceiving requirement, and in one embodiment, the angle between the connecting arm 121 and the functional arm 123 of the L-shaped metal member is 90 °.

Referring to fig. 10, the relationship between dual-polarized director 110, dual-polarized active element 120 and dual-polarized reflector 130 further comprises: the first active oscillator, the first reflector and the first director are positioned in the same plane, the second active oscillator, the second reflector and the second director are positioned in the same plane, and the view of the whole antenna from the A end to the B end is approximately in a cross shape.

In one embodiment, as shown in fig. 5 and 6, the dual polarized inverted yagi antenna 12 further comprises a reflector plate 300, the reflector plate 300 being disposed at the ground proximal end of the antenna axial rod 140. Specifically, the reflection plate 300 may be a metal flat plate having a rectangular shape, a circular shape, a regular polygon shape, or the like, for enhancing reflection and improving the front-to-back ratio of the antenna.

In one embodiment, the dual-polarized inverted-yagi antenna 12 further includes a radome, which is a cavity structure with an opening at one end and a closed end at the other end, and the opening end is fixed on the reflector 300. The dual-polarized inverted yagi antenna is arranged in the antenna housing cavity structure, protects each component of the antenna, and can also avoid the interference of the environment outside the housing on the antenna, for example, the whole structure of the antenna is prevented from being damaged by external factors.

Referring to fig. 11 and 12, in one embodiment, a feeding structure 200 is disposed on both the first active element and the second active element of the dual-polarized active element 130, and each feeding structure 200 includes:

the metal bump 201 is provided as a feeding point on one of the functional arms 123a of the single-polarized active oscillator, and receives feeding.

A port at one end of the coaxial line 202 is connected with the metal bump 201, and is used for transmitting current to the active element to drive the antenna to work.

The support member 203, which is wrapped around the coaxial cable 202, is used to isolate the coaxial cable 202 from the external environment, and in one embodiment, the material of the support member is teflon, which further plays an insulating role.

The metal shell 204 is disposed outside the supporting member 203, and a portion of the metal shell 204 is embedded in the other functional arm 123b without the metal bump 201, so as to ground the metal shell, so that the coaxial line 202 and the metal shell 204 form a potential difference.

Further, in one embodiment, the dual polarized inverted yagi antenna 12 further comprises a feeding input component, and the feeding input component is connected with the feeding structure on the first active element and the feeding structure on the second active element. The feed input assembly is used for inputting feed to the dual-polarized inverted yagi antenna 12, so that the antenna can receive the feed to normally work.

Further, in an embodiment, with continued reference to fig. 5 and 6, the feed input assembly includes a coaxial feed line 500, the coaxial feed line 500 connecting the feed structure on the first active element and the feed structure on the second active element. Specifically, the coaxial feed line 500 may be a 50-ohm coaxial line, and correspondingly, the input impedance of the dual-polarized inverted-yagi antenna 12 is 50 ohms at this time. By adopting the coaxial feeder line to provide the feeding structure for feeding the antenna, an impedance converter is not needed, and the feeding cost is saved.

In another embodiment, which may be referred to in fig. 13, the feeding input assembly comprises a balun feed 600, the balun feed 600 connecting the feeding structure on the first active element and the feeding structure on the second active element. The balun feed device is a balun, and balanced feeding of the antenna element can be achieved through the balun feed device.

In one embodiment, the dual-polarized inverted-yagi antenna 12 further includes a dielectric strip, and the antenna axial rod 140 includes a first feeding assembly plate, a second feeding assembly plate, a third feeding assembly plate, and a fourth feeding assembly plate, the first feeding assembly plate, the second feeding assembly plate, the third feeding assembly plate, and the fourth feeding assembly plate surround to form a cavity, and the dielectric strip is disposed in the cavity. Further, in one embodiment, the material of the dielectric strip may be an inorganic ceramic material or an organic dielectric material, and the cross-sectional area of the dielectric strip is equal to that of the cavity, so that the dielectric strip is conveniently fixed in the cavity, and the working stability is improved. By arranging the dielectric strips in the cavity, the Hansen-Wood's end fire condition can be realized, a strong end fire array is formed, the dielectric constants of all layers of oscillators are different, and the strong end fire array is formed, so that the purpose of improving the gain of the antenna is realized.

In one embodiment, referring to fig. 14, the signal processing device 3 includes a first filter 31, a first amplifier 32 and a second amplifier 33, the first filter 31 is connected to the antenna switch device 2 and the first amplifier 32, the first amplifier 32 is connected to the controller 4, the controller 4 is connected to the second amplifier 33, and the second amplifier 330 is connected to the antenna switch device 2. The filter can carry out filtering processing to the signal, and the amplifier can amplify the signal, and the use of filter and amplifier can improve the quality of WIFI signal, also can improve WIFI signal transmission's reliability.

Specifically, the types of the first amplifier 32 and the second amplifier 33 are not unique, for example, in this embodiment, the first amplifier 32 is a power amplifier, the second amplifier 33 is a low noise amplifier, when the WIFI signal is transmitted, the controller 4 outputs a low-power weak radio frequency signal to the power amplifier for power amplification, so that the output signal has a sufficiently large power to meet a requirement, the amplified signal is transmitted to the first filter 31 for filtering, and the filtered signal is radiated to a space through the high-gain antenna device 1 by the antenna switch device 2, so as to implement transmission of the WIFI signal. When receiving a WIFI signal, the high-gain antenna device 1 can sense an electromagnetic signal in a space and then send the electromagnetic signal to the antenna switch device 2, the antenna switch device 2 transmits the signal to the low-noise amplifier for amplification, and the amplified signal is sent to the controller 4 for demodulation to obtain the WIFI signal, so that the WIFI signal is received. It is understood that in other embodiments, the first amplifier 32 and the second amplifier 33 may be other types of amplifiers, as long as the implementation is deemed possible by those skilled in the art. In addition, the type of the first filter 31 is not exclusive, and for example, a band-pass filter may be used, and the band-pass filter may filter out spurious signals so that useful signals in a specific frequency band can be smoothly transmitted in a channel. The band-pass filter can be realized in various ways, for example, a designed special band-pass filter can be used, the performance is stable, or the band-pass filter can be a printed band-pass filter, the structure is simple, and the manufacturing cost is low. It is understood that in other embodiments, the first filter 31 may be other types of filters as long as the implementation is considered by those skilled in the art.

In one embodiment, referring to fig. 14, the signal processing apparatus 3 further includes a second filter 34, the second filter 34 is connected to the first amplifier 32, and the controller 4 is connected to the second filter 34. The provision of the second filter 34 between the first amplifier 32 and the controller 4 may filter out spurious signals contained in the signal amplified by the first amplifier 32, thereby improving signal quality.

Specifically, the type of the second filter 34 is not exclusive, and for example, the second filter may be a low-pass filter, and the low-pass filter is connected to the first amplifier 32, and may filter out higher harmonics, such as second harmonic, third harmonic, and even higher harmonics, caused by the power amplifier, and reduce the influence of the higher harmonics on the signal transmission. It is understood that in other embodiments, the second filter 34 may be other types of filters as deemed practicable by those skilled in the art.

In this embodiment, taking the example that the number of the dual-polarized inverted yagi antennas 12 connected to each antenna switch device 2 is sequentially increased, the number of the antenna switch devices 2 is N, the first antenna switch device 2 is connected to two dual-polarized inverted yagi antennas 12, the second antenna switch device 2 is connected to three dual-polarized inverted yagi antennas 12, and so on, the nth antenna switch device 2 is connected to N +1 dual-polarized inverted yagi antennas 12. Taking the first antenna switch device 2 as an example, the two dual-polarized inverted yagi antennas 12 are connected to the antenna switch device 2, the antenna switch device 2 is sequentially connected to the first filter 31, the first amplifier 32, the second filter 34 and the controller 4, and the antenna switch device 2 is further connected to the controller 4 through the second amplifier 33 to form a signal transmitting channel and a signal receiving channel, respectively. Each antenna switch device 2 is independently provided with a set of signal processing device 3 to form a plurality of signal transmitting channels and signal receiving channels, so that multi-beam configuration can be realized, and the application range of the multi-channel wireless signal transceiver can be expanded. Due to the fact that the number of the dual-polarized inverted yagi antennas 12 connected to each antenna switch device 2 is different, the gain effect of each antenna switch device 2 is different, and specifically, the gain is higher when the number of the dual-polarized inverted yagi antennas 12 is larger. During practical use, the corresponding number of antennas can be adjusted according to requirements such as signal strength, coverage and the like, so that reasonable utilization of resources is facilitated, and the use reliability of the multichannel wireless signal transceiver is improved.

In one embodiment, the antenna switching device 2 includes a signal receiving circuit, a signal transmitting circuit, and a switch that connects the dual polarized inverted yagi antenna 12, and connects the second amplifier 33 through the signal receiving circuit, and connects the first filter 31 through the signal transmitting circuit. The antenna switching device 2 can switch the operating state of the dual-polarized inverted yagi antenna 12, so as to control the dual-polarized inverted yagi antenna 12.

Specifically, the switch in the antenna switching device 2 is connected to the dual-polarized inverted yagi antenna 12, when the switch is turned on with the signal transmitting circuit, the antenna switching device 2 controls the dual-polarized inverted yagi antenna 12 to be in a transmitting state, when the switch is turned on with the signal receiving circuit, the antenna switching device 2 controls the dual-polarized inverted yagi antenna 12 to be in a receiving state, and when the switch is in an open-circuit state, the dual-polarized inverted yagi antenna 12 does not work, and the device is in a shutdown state. The selector switch is connected with the controller 4, and switches the working state of the dual-polarized inverted yagi antenna 12 in transmission, reception or shutdown according to the control signal sent by the controller 4. Or, the switch may also be manually controlled, and the user manually switches the transmission, reception, or shutdown operation state of the dual-polarized inverted yagi antenna 12 according to the user's own needs.

For a better understanding of the above embodiments, the following detailed description is given in conjunction with a specific embodiment. In one embodiment, referring to fig. 15,

the device adopts the dual-polarized inverted yagi antenna 12 to improve the overall gain of the antenna, utilizes the characteristic of high gain of a three-dimensional antenna, solves the problem that the current WIFI transmission distance is short, and can realize the large-range coverage of WIFI signals by the device.

Above-mentioned multichannel wireless signal transceiver, high gain antenna device 1 adopts double polarization to fall yagi antenna 12 and constitutes the antenna array, and double polarization falls yagi antenna 12 through designing novel reflector and active oscillator to adopt the dual polarization structure, can effectively improve the antenna gain coefficient, the double polarization can also reduce signal transmission's polarization loss simultaneously, accurate received signal. Adopt the double polarization to fall yagi antenna 12 and constitute the antenna array, design high gain antenna device 1 for three-dimensional group matrix structure for high gain antenna device 1 can form perpendicular plane wave beam, and through carrying out the double polarization and invering to the antenna, the radiation direction of antenna is towards ground, makes ground can reflect the energy of radiating totally back, has reduced the dorsad radiation of antenna, and then has improved the whole gain of antenna, uses the reliability height.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A multi-channel wireless signal transceiving equipment is characterized by comprising a high-gain antenna device, an antenna switch device, a signal processing device and a controller, wherein the high-gain antenna device comprises a substrate and two or more than two dual-polarized inverted yagi antennas, and each dual-polarized inverted yagi antenna is arranged on the substrate; the number of the antenna switching devices and the number of the signal processing devices are the same and are two or more than two, each antenna switching device is respectively connected with a corresponding dual-polarized inverted yagi antenna, and each signal processing device is respectively connected with a corresponding antenna switching device and the controller; wherein:

the dual-polarized inverted yagi antenna comprises an antenna axial rod, a dual-polarized reflector, a dual-polarized active oscillator and a dual-polarized director;

the dual-polarized director, the dual-polarized active oscillator and the dual-polarized reflector are sequentially arranged on the antenna axial rod; the dual-polarized director is arranged at the near ground end of the antenna axial rod, and the dual-polarized reflector is arranged at the far ground end of the antenna axial rod; the near-ground end of the antenna axial rod is used for being arranged towards the ground, and the far-ground end of the antenna axial rod is arranged far away from the ground;

the dual-polarized director comprises a first director and a second director which are orthogonally arranged, the first director and the second director comprise a plurality of metal pieces arranged on the axial rod of the antenna, each metal piece is perpendicular to the axial rod of the antenna, a vertical foot is superposed with the midpoint of each metal piece, the length of each metal piece is shorter than that of the adjacent metal piece close to the dual-polarized active oscillator, and when the first director and the second director orthogonally form the dual-polarized director, every two metal pieces with the same length are kept orthogonal and are positioned in the same plane;

the dual-polarized reflector comprises a first reflector and a second reflector which are orthogonally arranged, the first reflector and the second reflector respectively comprise a metal piece arranged on two sides of the axial rod of the antenna, the metal piece of the dual-polarized reflector is perpendicular to the axial rod of the antenna, a foot is coincided with the midpoint of the metal piece, the first reflector and the first director are positioned in the same plane, the second reflector and the second director are positioned in the same plane, and the length of the metal piece of the dual-polarized reflector is longer than that of any metal piece of the dual-polarized director;

the dual-polarized active oscillator comprises two single-polarized active oscillators, namely a first active oscillator and a second active oscillator, which are orthogonally arranged, wherein the first active oscillator and the second active oscillator are respectively composed of two L-shaped metal pieces symmetrically arranged on two sides of an antenna axial rod, one arm of each L-shaped metal piece is a connecting arm and is attached to the antenna axial rod, a port of each connecting arm is connected with the dual-polarized reflector, the other arm of each L-shaped metal piece is a functional arm, and the length of each functional arm is longer than that of the director and shorter than that of the reflector; meanwhile, the first active oscillator and the first reflector are in the same plane, and the second active oscillator and the second reflector are in the same plane.

2. The multi-channel wireless signal transceiving equipment of claim 1, wherein dual polarized inverted yagi antennas of different frequency bands are arranged on the substrate in a crossed manner.

3. The multi-channel wireless signal transceiving equipment of claim 1, wherein the dual-polarized inverted yagi antenna further comprises a reflector plate, and the reflector plate is arranged at the ground-proximal end of the antenna axial rod.

4. The multi-channel wireless signal transceiving equipment according to claim 3, wherein the dual-polarized inverted yagi antenna further comprises an antenna housing, the antenna housing is of a cavity structure with one end open and the other end closed, and the open end is fixed on the reflector plate.

5. The multi-channel wireless signal transceiving apparatus of claim 1, wherein the antenna axial rod is shaped as a square rod.

6. The multi-channel wireless signal transceiving apparatus of claim 1, wherein the dual-polarized active element further comprises a feed structure disposed on the first active element and a feed structure disposed on the second active element, each of the feed structures comprising:

the metal bump is arranged on one functional arm and used for receiving feed;

a coaxial line, one end port of which is connected with the metal bump and is used for transmitting current to the single-polarization active oscillator to drive the antenna to work;

the supporting piece is coated outside the coaxial line and used for isolating the coaxial line from the external environment;

and the metal shell is arranged outside the supporting piece, and meanwhile, one part of the metal shell is embedded into the functional arm without the metal lug.

7. The multi-channel wireless signal transceiving apparatus of claim 6, wherein the dual-polarized inverted yagi antenna further comprises a feed input component, the feed input component being connected to the feed structure on the first active element and the feed structure on the second active element.

8. The multi-channel wireless signal transceiving apparatus of claim 7, wherein the feed input component comprises a coaxial feed line connecting the feed structure on the first active element and the feed structure on the second active element.

9. The multiple channel wireless signal transceiving apparatus of claim 7, wherein the feed input component comprises a balun feed, the balun feed connecting a feed structure on the first active element and a feed structure on the second active element.

10. The multi-channel wireless signal transceiving equipment according to claim 1, wherein the dual-polarized inverted yagi antenna further comprises a dielectric strip, the antenna axial rod comprises a first feeding assembly plate, a second feeding assembly plate, a third feeding assembly plate and a fourth feeding assembly plate, the first feeding assembly plate, the second feeding assembly plate, the third feeding assembly plate and the fourth feeding assembly plate surround to form a cavity, and the dielectric strip is disposed in the cavity.

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