CN115441168A - Dual-band antenna device and ZigBee module - Google Patents

Dual-band antenna device and ZigBee module Download PDF

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Publication number
CN115441168A
CN115441168A CN202210950032.2A CN202210950032A CN115441168A CN 115441168 A CN115441168 A CN 115441168A CN 202210950032 A CN202210950032 A CN 202210950032A CN 115441168 A CN115441168 A CN 115441168A
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China
Prior art keywords
band antenna
gap
radiator
radiation
sub
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CN202210950032.2A
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Inventor
何彦
刘宏伟
王小虎
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Shenzhen Feibit Electronic Technology Co ltd
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Shenzhen Feibit Electronic Technology Co ltd
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Priority to CN202210950032.2A priority Critical patent/CN115441168A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/106—Microstrip slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

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Abstract

The invention provides a dual-band antenna device and a ZigBee module. The antenna comprises a feed source, a grounding connection part and a radiator. The feed source comprises a feed point part and a ground feeding part, and the feed point part and the ground feeding part are arranged oppositely and at intervals. The ground connection includes opposing first and second side portions and a connection side portion therebetween. The connection side portion is provided with a first gap, the feed source is located in the first gap, and the grounding connection portion is connected to the grounding portion. The radiator comprises a first radiator and a second radiator. The first radiator is connected to the feed point portion and the ground connection portion, and the first radiator protrudes out of the first side portion. The first radiator is provided with a second gap which is communicated with the first gap. The second radiator is connected to the first radiator and spaced from the first radiator. A third gap is formed between the second radiator and the grounding connection part, and the third gap is communicated with the first gap. Therefore, the dual-band antenna device has higher antenna gain and better radiation efficiency, and further improves the performance of the dual-band antenna device.

Description

Dual-band antenna device and ZigBee module
Technical Field
The invention relates to the technical field of antennas, in particular to a dual-band antenna device and a ZigBee module.
Background
With the development of wireless communication technology, the ZigBee technology is widely accepted because of its characteristics of low power consumption, low cost, and low complexity. However, most of the dual-band antenna devices in the ZigBee modules have poor performance, and cannot meet the use requirements.
Disclosure of Invention
Embodiments of the present invention provide a dual band antenna apparatus to improve at least one of the above problems.
The embodiment of the invention achieves the above object by the following technical solutions.
In a first aspect, an embodiment of the present invention provides a dual-band antenna apparatus. The antenna device includes a feed source, a ground connection portion, and a radiator. The feed source comprises a feed point part and a feed ground part, and the feed point part and the feed ground part are arranged oppositely and at intervals. The ground connection includes opposing first and second side portions and a connection side portion between the first and second side portions. The connection side part is provided with a first gap, and the feed source is positioned in the first gap. The grounding connection part is connected to the ground feeding part. The radiator comprises a first radiator and a second radiator. The first radiator is connected to the feed point part and the grounding connection part, protrudes out of the first side part and is provided with a second gap, and the second gap is communicated with the first gap. The second radiator is connected to the first radiator and spaced from the first radiator. A third gap is formed between the second radiator and the grounding connection part, and the third gap is communicated with the first gap.
In some embodiments, the connecting side portion comprises a first sub-connecting side portion and a second sub-connecting side portion. The first sub connection side portion and the second sub connection side portion are located on both sides of the first gap. The first sub-connection side portion is connected to the first side portion. The second sub-connecting side portion is connected to the second side portion. The first radiator is connected to the first sub-connection side portion, and a third gap is formed between the second radiator and the second sub-connection side portion.
In some embodiments, the first radiator includes a first radiation part and a second radiation part connected. The first radiating portion is connected to the first sub-connection side portion and the feed point portion. The second radiation part protrudes out of the first side part, and the second radiation body is connected to the first radiation part and is spaced from the second radiation part.
In some embodiments, the second gap includes a first sub-gap and a second sub-gap. The first sub-gap is arranged on the first radiation part and communicated with the first gap. The second sub-gap is arranged on the second radiation part and communicated with the first sub-gap.
In some embodiments, the second radiator includes a third radiation part and a fourth radiation part. The third radiation portion and the fourth radiation portion are both connected to the first radiation portion, and the third radiation portion and the second radiation portion are located on the same side of the first radiation portion and are arranged at intervals. The fourth radiating portion, the first radiating portion and the second sub-connection side portion form a third gap.
In some embodiments, the length direction of the first radiating portion is perpendicular to the length direction of the second radiating portion. The length direction of the third radiation part is parallel to the length direction of the fourth radiation part and the length direction of the second radiation part.
In some embodiments, the wiring length of the third radiation part is greater than the wiring length of the first radiation part, the wiring length of the second radiation part, and the wiring length of the fourth radiation part.
In some embodiments, the wiring length of the third radiation part is 12 to 14mm. The wiring length of the fourth radiation part is 3.9 to 4.1mm. The wiring length of the first radiation part is 6.9 to 7.1mm. The wiring length of the second radiation part is 6.9 to 7.1mm.
In some embodiments, the feed point portion includes a first gold-plating layer, and a wiring length and a wiring width of the first gold-plating layer are each 1.4 to 1.6mm. The ground feeding part comprises a second gold-plated layer, and the wiring length and the wiring width of the second gold-plated layer are both 1.9-2.1 mm.
The embodiment of the invention also provides a ZigBee module. The ZigBee module comprises the dual band antenna device of any of the above embodiments and a circuit board. The circuit board includes the first wiring portion and the second wiring portion that are connected, and first wiring portion is equipped with ground connection connecting portion and feed, and second wiring portion is equipped with the irradiator.
The embodiment of the invention provides a dual-band antenna device and a ZigBee module. The dual band antenna device includes a feed source, a ground connection portion, and a radiator. The feed point part of the feed source is connected with the radiating body, and the ground feed part of the feed source is connected with the grounding connecting part. Wherein, ground connection portion includes relative first lateral part and second lateral part to and be located the connection lateral part between first lateral part and the second lateral part, connect the lateral part and be equipped with first clearance, the feed is located first clearance, ground connection portion connects in presenting ground portion, thereby makes feed rational configuration, and makes present some portion and present ground portion interval setting. In addition, the radiator comprises a first radiator and a second radiator, and the first radiator is connected to the feed point part and the grounding connection part, so that the dual-band antenna device and the external equipment can form a loop. And the first radiator is protruded out of the first side part, the first radiator is provided with a second gap, the second gap is communicated with the first gap, and the second gap can coordinate the standing wave bandwidth and the waveform depth of the dual-band antenna device and improve the gain. The second radiator is connected to the first radiator and spaced from the first radiator, a third gap is formed between the second radiator and the grounding connection portion, and the third gap is communicated with the first gap to avoid direct contact between the second radiator and the grounding connection portion. Therefore, the first radiator of the dual-band antenna device can generate radiation resonance near 5GHz, and the second radiator can generate radiation resonance near 2.4GHz or 5GHz, so that the integration level of the dual-band antenna device is improved, the physical size of the dual-band antenna device is reduced, the dual-band antenna device has high antenna gain and good radiation efficiency, and the performance of the dual-band antenna device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dual-band antenna apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic size diagram of a dual-band antenna apparatus provided in an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating a position of a dual-band antenna apparatus provided by an embodiment of the present invention in a rectangular spatial coordinate system.
Fig. 4 shows a schematic diagram of the radiation direction of the dual band antenna device of fig. 3 at 2400 MHz.
Fig. 5 is a schematic diagram showing the H-plane radiation direction of the dual band antenna device of fig. 4 at 2400 MHz.
Fig. 6 is a schematic diagram illustrating the E1 plane radiation direction of the dual band antenna device of fig. 4 at 2400 MHz.
Fig. 7 is a schematic diagram illustrating the E2 plane radiation direction of the dual band antenna device of fig. 4 at 2400 MHz.
Fig. 8 is a schematic diagram showing the radiation direction of the dual band antenna device of fig. 3 at 2450 MHz.
Fig. 9 is a schematic diagram showing the H-plane radiation direction of the dual-band antenna device of fig. 8 at 2450 MHz.
Fig. 10 is a schematic diagram showing the E1 plane radiation direction of the dual band antenna device in fig. 8 at 2450 MHz.
Fig. 11 is a schematic diagram showing the E2 plane radiation direction of the dual band antenna device of fig. 8 at 2450 MHz.
Fig. 12 shows a schematic view of the radiation direction of the dual band antenna device of fig. 3 at 2500 MHz.
Fig. 13 shows a schematic diagram of the H-plane radiation direction of the dual band antenna arrangement of fig. 12 at 2500 MHz.
Fig. 14 shows a schematic diagram of the E1 plane radiation direction of the dual band antenna device of fig. 12 at 2500 MHz.
Fig. 15 is a schematic diagram showing the E2 plane radiation direction of the dual band antenna device in fig. 12 at 2500 MHz.
Fig. 16 shows a schematic diagram of the radiation direction of the dual band antenna arrangement in fig. 3 at 5050 MHz.
Fig. 17 shows a schematic diagram of the H-plane radiation direction at 5050MHz of the dual-band antenna device in fig. 16.
Fig. 18 shows a schematic diagram of the E1 plane radiation direction at 5050MHz of the dual-band antenna device in fig. 16.
Fig. 19 shows a schematic diagram of the E2 plane radiation direction at 5050MHz of the dual band antenna apparatus in fig. 16.
Fig. 20 is a schematic view showing a radiation direction of the dual band antenna device in fig. 3 at 5450 MHz.
Fig. 21 shows a schematic diagram of the H-plane radiation direction of the dual band antenna device in fig. 20 at 5450 MHz.
Fig. 22 is a schematic view showing the E1 plane radiation direction of the dual band antenna device of fig. 20 at 5450 MHz.
Fig. 23 shows a schematic diagram of the E2 plane radiation direction of the dual band antenna device in fig. 20 at 5450 MHz.
Fig. 24 is a schematic diagram illustrating a radiation direction of the dual band antenna device in fig. 3 at 5850 MHz.
Fig. 25 is a schematic diagram showing the H-plane radiation direction at 5850MHz of the dual band antenna apparatus of fig. 24.
Fig. 26 is a schematic diagram showing the E1 plane radiation direction at 5850MHz of the dual band antenna apparatus of fig. 24.
Fig. 27 is a diagram illustrating the E2 plane radiation direction at 5850MHz of the dual band antenna apparatus of fig. 24.
Fig. 28 shows a schematic structural diagram of a ZigBee module provided in an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings. It is to be understood that the described embodiments are merely exemplary of some, and not necessarily all, embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
ZigBee is a low-power local area network protocol based on IEEE802.15.4 standard, has the characteristics of low power consumption, low cost, low complexity, strong anti-interference capability, large network capacity and the like, and can support various network topological structures such as a mesh network, a star network, a tree network and the like. ZigBee can use a variety of different operating frequency bands.
In practical research, the inventors of the present application found that the working frequency, efficiency and antenna gain of antenna radiation can be effectively adjusted by adjusting the wiring manner of the dual-band antenna device, and different wiring manners make the performance of the dual-band antenna device have a large difference. Therefore, designing the wiring pitch and length of the antenna device is an important factor in achieving improved antenna performance.
In view of this, the present invention provides a dual band antenna device, which can be applied to a ZigBee module and can be used to generate operating frequency bands of 2.4GHz and 5 GHz. For example, the frequency band generated by the dual-band antenna device of the ZigBee module can control the curtain motor to rotate so as to control the curtain to open or close. In the following embodiments, the dual-band antenna device of the ZigBee module is applied to control a curtain motor for description, and other cases requiring the dual-band antenna device can be referred to for implementation.
Referring to fig. 1, the dual-band antenna device includes a feed source 100, a ground connection portion 200, and a radiator 300, wherein the feed source 100 is connected to the ground connection portion 200 and the radiator 300, and the ground connection portion 200 is connected to the radiator 300, so that the dual-band antenna device 10 may form a loop with an external device (e.g., a circuit board). The feed 100 may feed the radiator 300 with a current signal to operate the radiator 300 at a designated frequency band, for example, a frequency band around 2.4GHz and a frequency band around 5GHz, and the ground connection part 200 may couple the roles of the antenna waveform and the frequency. The performance of the dual band antenna device 10 can be improved by adjusting the positions and shapes of the feed source 100, the radiator 300, and the ground connection part 200.
Referring to fig. 1 and 2, the feed source 100 includes a feed point portion 110 and a ground portion 120, and the feed point portion 110 and the ground portion 120 are disposed opposite to each other and spaced apart from each other, so as to prevent the feed point portion 110 and the ground portion 120 from being short-circuited. The feeding portion 110 is connected to the radiator 300, and feeds a current signal to the radiator 300. Further, the feed point portion 110 includes a first gold-plated layer 111, and the first gold-plated layer 111 is electroplated with gold metal, so as to enhance the conductivity of the feed portion and the radiator 300, facilitate better oxidation resistance, prevent corrosion by air, and reduce interference and loss of signals. In the present embodiment, the wiring length and the wiring width of the first gold-plating layer 111 are both L1, where L1 ranges from 1.4 to 1.6mm, for example, L1 may be 1.5mm. Thus, the area of the feed point portion 110 is small, so that the occupied space of the feed point portion 110 is reduced, and the feed point portion 110 is convenient to transmit signals to the radiator 300.
The ground feeding portion 120 is connected to the ground connection portion 200 such that the ground connection portion 200 is connected to a ground line of an external device. Further, the ground feeding portion 120 includes a second gold plating layer 121, and the second gold plating layer 121 is plated with metal gold, so that the conductivity of the ground feeding portion 120 and the ground connection portion 200 is enhanced, better oxidation resistance is facilitated, corrosion by air is not prone to occurring, and meanwhile, interference and loss of signals are reduced. In this embodiment, the wiring length and the wiring width of the second gold-plating layer 121 are both L2, where L2 ranges from 1.9 mm to 2.1mm, for example, L2 may be 2.0mm. Thus, the area of the ground feeding portion 120 is small, the occupied space of the ground feeding portion 120 is reduced, and the ground feeding portion 120 is convenient to transmit signals to the ground connection portion 200.
The ground connection portion 200 includes a first side portion 210 and a second side portion 220 opposite to each other, and a connection side portion 230 located between the first side portion 210 and the second side portion 220, wherein the connection side portion 230 is disposed on a side of the ground connection portion 200 close to the feed point portion 110. In the present embodiment, the general outline of the ground connection portion 200 is disposed in a recessed shape, thereby facilitating coupling of the waveform and frequency of the dual band antenna device 10.
The connecting side portion 230 is provided with a first gap 301. The ground connection portion 200 is connected to the ground feeding portion 120 such that the ground connection portion 200 is connected to a circuit board (not shown) through the ground feeding portion 120, and the ground feeding portion 110 and the ground feeding portion 120 are located in the first gap 301.
The connection side 230 may include a first sub-connection side 231 and a second sub-connection side 232, and the first sub-connection side 231 and the second sub-connection side 232 are located at both sides of the first gap 301. The first sub-connection side 231 is connected to the first side 210, and the second sub-connection side 232 is connected to the second side 220. This is advantageous for coupling the waveforms and frequencies of the dual band antenna assembly 10.
The radiator 300 includes a first radiator 310 and a second radiator 320, and the first radiator 310 is connected to the second radiator 320 and the feed point unit 110, so that the feed point unit 110 feeds a current signal to the first radiator 310 and the second radiator 320, and the first radiator 310 generates a frequency band around 2.4GHz, and the second radiator 320 generates frequency bands around 2.4GHz and 5GHz, which is beneficial to realizing different distances to control the curtain motor, so as to open and close the curtain.
The first radiator 310 protrudes from the first side portion 210, that is, the first radiator 310 is connected to the first side portion 210 and the feed point portion 110 and extends in a direction away from the first side portion 210, so that the first radiator 310 generates a frequency band around 2.4 GHz. The first radiator 310 is provided with the second gap 301, and the second gap 301 is connected to the first gap 301, for example, the second gap 301 includes a first sub-gap 301a and a second sub-gap 301, and the first sub-gap 301a is connected to the first sub-gap 301 and the second sub-gap 301b, so as to increase the trace length of the first radiator 310, thereby enabling the second gap 301 to coordinate the standing wave bandwidth and the waveform depth of the dual-band antenna apparatus 10, and having a gain optimization effect on the dual-band antenna apparatus 10.
The first radiator 310 may include a first radiation part 311 and a second radiation part 312 connected, and the first radiation part 311 is connected to the first sub-connection side 231 and the feed point part 110, such that the feed point part 110 is connected to the radiator 300, thereby allowing the first radiation part 311 to generate a frequency band of 2.4 GHz. In addition, the first radiating portion 311 is provided with the first sub-gap 301a, so as to lengthen the wiring itself, further coordinate the standing wave bandwidth and the depth of the waveform of the dual-band antenna device 10, and have a gain optimization effect on the dual-band antenna device 10.
The second radiation portion 312 protrudes from the first side portion 210, so that the length of the second radiation portion 312 is increased, which is beneficial to increasing the gain of the dual-band antenna apparatus 10. In addition, the second radiating portion 312 is provided with the second sub-gap 301b, so as to increase the self-wiring, further coordinate the standing wave bandwidth and the depth of the waveform of the dual-band antenna device 10, and have a gain optimization effect on the dual-band antenna device 10.
The second radiator 320 is connected to the first radiator 310 and spaced apart from the first radiator 310, for example, the second radiator 320 is connected to the first radiator 311 and spaced apart from the second radiator 312, which is beneficial to separating two different frequency bands, for example, the second radiator 320 may generate a frequency band of 2.4GHz and a frequency band of 5GHz, and the first radiator 310 may generate a frequency band of 5GHz, so that the frequency band of 2.4GHz generated by the second radiator 320 does not affect the frequency band of 5GHz generated by the first radiator 310.
The second radiator 320 and the ground connection portion 200 have a third gap 302, and the third gap 302 is communicated with the first gap 301, for example, the third gap 302 is formed between the second radiator 320 and the second sub-connection side portion 232, so that the second radiator 320 is prevented from directly contacting the ground connection portion 200, and the dual-band antenna apparatus 10 can normally operate.
Further, the second radiator 320 includes a third radiation portion 321 and a fourth radiation portion 322, and the third radiation portion 321 and the fourth radiation portion 322 are both connected to the first radiation portion 311, so that the feeding point portion 110 can feed a current signal to the third radiation portion 321 and the fourth radiation portion 322.
The third radiation portion 321 and the second radiation portion 312 are located on the same side of the first radiation portion 311 and are spaced apart from each other, so that the third radiation portion 321 is favorable for generating a frequency band of 2.4GHz, and the second radiation portion 312 is favorable for generating a frequency band of 5 GHz.
The fourth radiation portion 322, the first radiation portion 311 and the second sub-connection side portion 232 enclose a third gap 302, so that the fourth radiation portion 322 is prevented from directly contacting the ground connection portion 200, and the dual-band antenna apparatus 10 can normally operate.
In some embodiments, the length direction of the first radiation portion 311 is perpendicular to the length direction of the second radiation portion 312, and the length direction of the third radiation portion 321 is parallel to the length direction of the fourth radiation portion 322 and the length direction of the second radiation portion 312. This advantageously increases the efficiency and gain of the dual band antenna apparatus 10, thereby improving the performance of the dual band antenna apparatus 10.
In some embodiments, the wiring length of the third radiation part 321 is greater than the wiring length of the first radiation part 311, the wiring length of the second radiation part 312, and the wiring length of the fourth radiation part 322, so as to increase the wiring of the third radiation part 321, thereby facilitating the third radiation part 321 to generate a 2.4GHz frequency band, and facilitating the first radiation part 311, the second radiation part 312, and the fourth radiation part 322 to generate a 5GHz frequency band. Further, the wiring length of the third radiation portion 321 is L3, where L3 ranges from 12 mm to 14mm, for example, L3 may be 13mm. The fourth radiation portion 322 has a wiring length L4, where L4 ranges from 3.9 to 4.1mm, and L4 may be 4mm, for example. The wiring length of the first radiation portion 311 is L5, where L5 ranges from 6.9 to 7.1mm, for example, L5 may be 7mm. The wiring length of the second radiation portion 312 is L6, for example, the value of L6 ranges from 6.9 to 7.1mm, and for example, L6 may be 7mm.
Referring to table 1, in the dual band antenna apparatus 10 according to the above embodiment, the gains and efficiencies corresponding to different frequencies in practical tests are shown in table 1,
TABLE 1
Figure BDA0003788802310000101
From the test data in table 1, it can be known that the gain is 1.4dB to 3.5dB and the radiation efficiency is 65.86% to 67.71% in the 2400MHz to 2500MHz frequency band. In the 5050-5850 MHz frequency band, the gain is 1.8 dB-2.2 dB, and the radiation efficiency is 50.28% -54.74%. Therefore, the radiation efficiency of the dual-band antenna device 10 according to the embodiment of the present application is higher than 65% when receiving and transmitting the 2.4GHz band, and higher than 50% when receiving and transmitting the 5GHz band, and the gain and the radiation efficiency of the dual-band antenna device 10 are obviously higher.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a position of a dual-band antenna device 10 according to an embodiment of the present disclosure in a spatial rectangular coordinate system, where in the spatial rectangular coordinate system O-xyz, the dual-band antenna device 10 is located on an xOz coordinate plane, and an origin O of coordinate axes is substantially located at the feeding point portion 110, so as to facilitate detection of the antenna device.
Referring to fig. 4 to 7, fig. 4 shows radiation patterns of the dual-band antenna apparatus 10 provided in the embodiment of the present application in a spatial rectangular coordinate system at 2400MHz, where a center point of the graph represents a position of the antenna, and a farther distance from the center point indicates a larger gain, and a darker color indicates a larger gain of the antenna. Fig. 5 is a radiation pattern of an H plane (the H plane is a plane in which a magnetic field and a maximum radiation direction are located), fig. 6 is a radiation pattern of an E1 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located), and fig. 7 is a radiation pattern of an E2 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located). The radiation patterns shown in fig. 4 to 7 all extend in multiple directions, and the gain is higher, that is, on the plane where the dual-band antenna apparatus 10 is located and the plane where the vertical antenna apparatus is located, the gain and the efficiency of the dual-band antenna apparatus 10 are higher, and directional radiation in multiple directions can be realized, so that the position of the dual-band antenna apparatus 10 can be reasonably set according to actual requirements to improve the practicability.
Referring to fig. 8 to 11, fig. 8 shows the radiation pattern of the dual-band antenna device 10 provided by the embodiment of the present application at 2450MHz in a rectangular spatial coordinate system, where the center point of the graph represents the position of the antenna, and the farther away from the center point indicates the greater the gain, and the darker the color indicates the greater the gain of the antenna. Fig. 9 shows a radiation pattern of an H plane (the H plane is a plane in which a magnetic field and a maximum radiation direction are located), fig. 10 shows a radiation pattern of an E1 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located), and fig. 11 shows a radiation pattern of an E2 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located). The radiation patterns shown in fig. 8 to 11 all extend in multiple directions, and the gain is high, that is, on the plane where the dual-band antenna apparatus 10 is located and the plane where the vertical antenna apparatus is located, the gain and the efficiency of the dual-band antenna apparatus 10 are high, and directional radiation in multiple directions can be realized, so that the position of the dual-band antenna apparatus 10 can be reasonably set according to actual requirements to improve the practicability.
Referring to fig. 12 to 15, fig. 12 shows a radiation pattern of the dual-band antenna device 10 provided by the embodiment of the present application at 2500MHz in a rectangular spatial coordinate system, where a center point of the graph represents a position of the antenna, and a farther distance from the center point indicates a larger gain, and a darker color indicates a larger gain of the antenna. Fig. 13 is a radiation pattern of an H plane (H plane is a plane in which a magnetic field and a maximum radiation direction are located), fig. 14 is a radiation pattern of an E1 plane (E plane is a plane in which a maximum radiation direction and an electric field are located), and fig. 15 is a radiation pattern of an E2 plane (E plane is a plane in which a maximum radiation direction and an electric field are located). The radiation patterns shown in fig. 12 to 15 all extend in multiple directions, and the gain is high, that is, the gain and efficiency of the dual-band antenna device 10 are high in the plane of the dual-band antenna device 10 and the plane of the vertical antenna device, and directional radiation in multiple directions can be realized, so that the position of the dual-band antenna device 10 can be reasonably set according to actual requirements to improve the practicability.
Referring to fig. 16 to 19, fig. 16 shows radiation patterns of the dual-band antenna device 10 provided by the embodiment of the present application at 5050MHz in a spatial rectangular coordinate system, where a central point of the graph represents a position of the antenna, and a farther distance from the central point indicates a larger gain, and a darker color indicates a larger gain of the antenna. Fig. 17 shows a radiation pattern of an H plane (the H plane is a plane in which a magnetic field and a maximum radiation direction are located), fig. 18 shows a radiation pattern of an E1 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located), and fig. 19 shows a radiation pattern of an E2 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located). The radiation patterns shown in fig. 16 to 19 all extend in multiple directions, and the gain is high, that is, the gain and efficiency of the dual band antenna apparatus 10 are high on the plane where the dual band antenna apparatus 10 is located and the plane where the vertical antenna apparatus is located, so that directional radiation in multiple directions can be realized, and the position of the dual band antenna apparatus 10 can be reasonably set according to actual requirements to improve the practicability.
Referring to fig. 20 to 23, fig. 20 shows a radiation pattern of the dual-band antenna device 10 provided in the embodiment of the present application at 5450MHz in a rectangular spatial coordinate system, where a center point of the graph represents a position of the antenna, and a farther distance from the center point indicates a larger gain, and a darker color indicates a larger gain of the antenna. Fig. 21 shows a radiation pattern of an H plane (the H plane is a plane in which a magnetic field and a maximum radiation direction are located), fig. 22 shows a radiation pattern of an E1 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located), and fig. 23 shows a radiation pattern of an E2 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located). The radiation patterns shown in fig. 20 to 23 all extend in multiple directions, and the gain is high, that is, the gain and efficiency of the dual band antenna apparatus 10 are high on the plane where the dual band antenna apparatus 10 is located and the plane where the vertical antenna apparatus is located, so that directional radiation in multiple directions can be realized, and the position of the dual band antenna apparatus 10 can be reasonably set according to actual requirements to improve the practicability.
Referring to fig. 24 to 27, fig. 24 shows radiation patterns of the dual-band antenna device 10 provided by the embodiment of the present application in a spatial rectangular coordinate system at 2400MHz, where a center point of the graph represents a position of the antenna, and a farther distance from the center point indicates a larger gain, and a darker color indicates a larger gain of the antenna. Fig. 25 shows a radiation pattern of an H plane (the H plane is a plane in which a magnetic field and a maximum radiation direction are located), fig. 26 shows a radiation pattern of an E1 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located), and fig. 27 shows a radiation pattern of an E2 plane (the E plane is a plane in which a maximum radiation direction and an electric field are located). The radiation patterns shown in fig. 24 to 27 all extend in multiple directions, and the gain is high, that is, the gain and efficiency of the dual-band antenna device 10 are high in the plane of the dual-band antenna device 10 and the plane of the vertical antenna device, and directional radiation in multiple directions can be realized, so that the position of the dual-band antenna device 10 can be reasonably set according to actual requirements to improve the practicability.
Referring to fig. 28, the present invention further provides a ZigBee module 20, where the ZigBee module 20 includes a circuit board and the dual band antenna device 10 according to the above embodiment. The specific structure of the dual band antenna device 10 refers to the above-described embodiment. The ZigBee module 20 may for example be used to control a curtain motor to bring a curtain open and closed. Since the ZigBee module 20 adopts all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments of the dual-band antenna device 10 are also achieved, and are not described in detail herein.
In some embodiments, the ZigBee module 20 further comprises a dielectric board 400, and the dielectric board 400 may be used to carry the dual band antenna device 10. The dielectric board 400 includes a first wiring portion 410 and a second wiring portion 420 connected, the first wiring portion 410 is provided with the ground connection portion 200 and the feed 100, and the second wiring portion 420 is provided with the radiator 300. In some embodiments, the dual-band antenna assembly 10 may be electrically connected to the circuit board by coaxial lines, thereby facilitating the radio frequency circuitry of the circuit board to conduct signals to the feed. In the embodiment, the length direction of the first wiring portion 410 is perpendicular to the length direction of the second wiring portion 420, so that the structure is compact, and the occupied space of the ZigBee module 20 is reduced.
In the present invention, the terms "mounted", "connected", and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed connection, detachable connection, integral connection or transmission connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first," "second," and the like, are used solely to distinguish one from another and are not to be construed as referring to or particular structures. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present invention, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described herein can be combined and combined by those skilled in the art without contradiction.
The above embodiments are only intended to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (10)

1. A dual band antenna assembly, comprising:
the feed source comprises a feed point part and a feed ground part, and the feed point part and the feed ground part are arranged oppositely and at intervals;
the ground connection part comprises a first side part and a second side part which are opposite, and a connection side part positioned between the first side part and the second side part, a first gap is arranged on the connection side part, the feed source is positioned in the first gap, and the ground connection part is connected to the ground feed part; and
the irradiator, the irradiator includes first irradiator and second irradiator, first irradiator connect in feed point portion with ground connection portion, first irradiator protrusion in first lateral part, first irradiator is equipped with the second clearance, the second clearance communicate in first clearance, the second irradiator connect in first irradiator and with first irradiator interval, the second irradiator with the third clearance has between the ground connection portion, the third clearance communicate in first clearance.
2. The dual band antenna device of claim 1, wherein the connection side portion comprises a first sub-connection side portion and a second sub-connection side portion, the first sub-connection side portion and the second sub-connection side portion are located at both sides of the first gap, the first sub-connection side portion is connected to the first side portion, the second sub-connection side portion is connected to the second side portion, the first radiator is connected to the first sub-connection side portion, and the third gap is formed between the second radiator and the second sub-connection side portion.
3. The dual band antenna apparatus of claim 2, wherein the first radiator comprises a first radiating portion and a second radiating portion connected to each other, the first radiating portion is connected to the first sub-connection side portion and the feed point portion, the second radiating portion protrudes from the first side portion, and the second radiator is connected to the first radiating portion and spaced apart from the second radiating portion.
4. The dual band antenna device of claim 3, wherein the second gap comprises a first sub-gap and a second sub-gap, the first sub-gap is disposed in the first radiating portion and connected to the first gap, and the second sub-gap is disposed in the second radiating portion and connected to the first sub-gap.
5. The dual band antenna device of claim 3, wherein the second radiator comprises a third radiating portion and a fourth radiating portion, the third radiating portion and the fourth radiating portion are both connected to the first radiating portion, the third radiating portion and the second radiating portion are located on the same side of the first radiating portion and are spaced apart from each other, and the fourth radiating portion, the first radiating portion and the second sub-connection side form the third gap.
6. The dual band antenna device of claim 5, wherein a length direction of the first radiating portion is perpendicular to a length direction of the second radiating portion, and a length direction of the third radiating portion is parallel to a length direction of the fourth radiating portion and a length direction of the second radiating portion.
7. The dual band antenna device according to claim 6, wherein a wiring length of the third radiation portion is greater than a wiring length of the first radiation portion, a wiring length of the second radiation portion, and a wiring length of the fourth radiation portion.
8. The dual band antenna device according to claim 7, wherein the third radiating portion has a wiring length of 12 to 14mm, the fourth radiating portion has a wiring length of 3.9 to 4.1mm, the first radiating portion has a wiring length of 6.9 to 7.1mm, and the second radiating portion has a wiring length of 6.9 to 7.1mm.
9. The dual band antenna device of claim 1, wherein the feed point portion comprises a first gold-plating layer, a wiring length and a wiring width of the first gold-plating layer are both 1.4 to 1.6mm, the feed ground portion comprises a second gold-plating layer, and a wiring length and a wiring width of the second gold-plating layer are both 1.9 to 2.1mm.
10. A ZigBee module, comprising:
the dual band antenna device as claimed in any of claims 1 to 9, and
the circuit board, the circuit board is including the first wiring portion and the second wiring portion that are connected, first wiring portion is equipped with ground connection connecting portion with the feed, second wiring portion is equipped with the irradiator.
CN202210950032.2A 2022-08-09 2022-08-09 Dual-band antenna device and ZigBee module Pending CN115441168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210950032.2A CN115441168A (en) 2022-08-09 2022-08-09 Dual-band antenna device and ZigBee module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210950032.2A CN115441168A (en) 2022-08-09 2022-08-09 Dual-band antenna device and ZigBee module

Publications (1)

Publication Number Publication Date
CN115441168A true CN115441168A (en) 2022-12-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210950032.2A Pending CN115441168A (en) 2022-08-09 2022-08-09 Dual-band antenna device and ZigBee module

Country Status (1)

Country Link
CN (1) CN115441168A (en)

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