CN220604987U - Multi-band ceiling array antenna - Google Patents
Multi-band ceiling array antenna Download PDFInfo
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- CN220604987U CN220604987U CN202322164897.9U CN202322164897U CN220604987U CN 220604987 U CN220604987 U CN 220604987U CN 202322164897 U CN202322164897 U CN 202322164897U CN 220604987 U CN220604987 U CN 220604987U
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- 238000002955 isolation Methods 0.000 claims abstract description 14
- PEZNEXFPRSOYPL-UHFFFAOYSA-N (bis(trifluoroacetoxy)iodo)benzene Chemical group FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 9
- 230000010354 integration Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003491 array Methods 0.000 abstract 1
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Abstract
The utility model provides a multi-band ceiling array antenna, which comprises a plurality of radio frequency coaxial lines, a reflecting plate, a high-frequency oscillator array, an intermediate-frequency oscillator array and a low-frequency oscillator array; the oscillators of the high-frequency oscillator array, the intermediate-frequency oscillator array and the low-frequency oscillator array form annular arrays on the reflecting plate respectively, and the oscillators are staggered in position; the low-frequency oscillator is a PIFA antenna and comprises a first grounding pin, a second grounding pin and a feed pin, wherein the first grounding pin is connected with the reflecting plate after extending for a quarter wavelength in three directions of a horizontal plane, the second grounding pin is connected with a shielding layer of the radio frequency coaxial line, and the feed pin is connected with a core wire of the radio frequency coaxial line; the isolation gap is arranged between the low-frequency oscillator and the center of the reflecting plate, so that the omnidirectionality and isolation of low-medium-high frequency radiation can be effectively improved, the effects of large bandwidth, omnidirectional radiation, high isolation and multi-antenna integration can be realized, and the system communication quality can be improved integrally.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a multi-band ceiling array antenna.
Background
Compared with WIFI6, the WIFI7 has the advantage that the frequency band of 5.925-7.125GHz (6G for short) is increased on the basis of the original 2.4G and 5G. Due to the requirement of MIMO, the increase of frequency bands can lead to the increase of the number of antennas, the number of antennas is huge, and the integration difficulty is increased. For example, a WIFI7 capping AP, a common antenna combination is 2.4g2+5g4+6g4+ble 1+gps 1, and a total of 12 antennas. If the arrangement and combination between the antennas are not reasonable, the overall performance is affected. The bandwidth of the 6G frequency band newly added by the WIFI7 is about 1.2GHz, the relative bandwidth is about 18%, and the large bandwidth is one of the difficulties in the design of the 6G antenna. In the case of multiple antenna integration, the mutual reflection between the antenna bodies may result in an influence on the omni-directionality of the antenna radiation, which is a further difficulty in the design of the ceiling-mounted antenna. In addition, because the overall height of the ceiling AP is limited, there is a general requirement for the antenna height, and in the case of low-frequency band 2.4G, a PIFA antenna is generally used to reduce the height. Since the ground current intensity of the PIFA antenna is large, the isolation between antennas is a third difficulty in the design of the ceiling antenna. The ceiling AP is generally mounted on the ceiling or on the top of a public space, and its terminal is generally a mobile phone, and the user holds the mobile phone in a flat posture under normal conditions. Because the communication antenna in the mobile phone is affected by the space of the mobile phone, the PIFA antenna is generally adopted, the horizontal polarization component of the antenna is larger, the vertical polarization component of the antenna is smaller, the problems of low-medium-high frequency radiation omnidirectionality and isolation degree cannot be well solved by the existing antenna, and the communication quality of the system is not ideal.
Disclosure of Invention
The utility model aims to solve the problem of providing a multi-band ceiling array antenna, which improves the omnidirectionality and isolation of low-medium-high frequency radiation and improves the communication quality of a system.
The multi-band ceiling array antenna comprises a plurality of radio frequency coaxial lines, a reflecting plate, a high-frequency oscillator array, an intermediate-frequency oscillator array and a low-frequency oscillator array; the high-frequency oscillator array comprises a plurality of high-frequency oscillators which are distributed in the center of the top of the reflecting plate in an annular array manner by taking a as a radius, the medium-frequency oscillator array comprises a plurality of medium-frequency oscillators which are distributed in the center of the top of the reflecting plate in an annular array manner by taking b as a radius, the low-frequency oscillator array comprises a plurality of low-frequency oscillators which are distributed in the center of the top of the reflecting plate in an annular array manner by taking c as a radius, and a is less than b less than c; the high-frequency vibrator, the intermediate-frequency vibrator and the low-frequency vibrator are staggered; the low-frequency oscillator is a PIFA antenna and comprises a first grounding pin, a second grounding pin and a feed pin, wherein the first grounding pin is connected with the reflecting plate after extending for a quarter wavelength in three directions of a horizontal plane, the second grounding pin is connected with a shielding layer of the radio frequency coaxial line, and the feed pin is connected with a core wire of the radio frequency coaxial line; an isolation gap is arranged between the low-frequency vibrator and the center of the reflecting plate.
Preferably, the intermediate frequency vibrator and the high frequency vibrator are horizontally polarized vibrators, the intermediate frequency vibrator and the high frequency vibrator are composed of four arc folded vibrators connected in parallel, and parallel connection nodes of the four arc folded vibrators are connected with the radio frequency coaxial line.
Preferably, the intermediate frequency vibrator and the high frequency vibrator are supported at the top of the reflecting plate through a plurality of support columns.
Preferably, the high-frequency oscillator array, the intermediate-frequency oscillator array, and the low-frequency oscillator array respectively include four high-frequency oscillators, four intermediate-frequency oscillators, and four low-frequency oscillators.
Preferably, the high-frequency oscillator, the intermediate-frequency oscillator and the low-frequency oscillator are respectively a 6G frequency band oscillator, a 5G frequency band oscillator and a 2.4G frequency band oscillator.
The beneficial effects of the utility model are as follows: the utility model provides a multi-band ceiling array antenna, which can effectively improve the omnidirectionality and isolation of low-medium-high frequency radiation, and the parallel-fed folded vibrator array is beneficial to improving the impedance bandwidth and the pattern bandwidth of the antenna, the selection of horizontal polarized vibrators is more in line with the ceiling application scene, the polarization matching degree with a communication terminal is beneficial to improving, the effects of large bandwidth, omnidirectional radiation, high isolation and multi-antenna integration can be realized, and the communication quality of the system is beneficial to being integrally improved.
Drawings
Fig. 1 illustrates an outline structure of the present utility model.
Fig. 2 illustrates a top view of the present utility model.
Fig. 3 illustrates an exploded structural schematic of the present utility model.
Reference numerals illustrate: the high-frequency oscillator comprises a reflecting plate 10, an isolation gap 11, a high-frequency oscillator 20, an arc-shaped folded oscillator 21, an intermediate-frequency oscillator 30, a supporting column 31, a low-frequency oscillator 40, a first grounding pin 41, a second grounding pin 42 and a feed pin 43.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure.
All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are intended to be within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Reference is made to fig. 1-3.
The utility model provides a multi-band ceiling array antenna, which comprises a plurality of radio frequency coaxial lines, a reflecting plate 10, a high-frequency oscillator array, an intermediate-frequency oscillator array and a low-frequency oscillator array; the high-frequency oscillator array comprises a plurality of high-frequency oscillators 20 which are distributed at the top center of the reflecting plate 10 in an annular array manner by taking a as a radius, the medium-frequency oscillator array comprises a plurality of medium-frequency oscillators 30 which are distributed at the top center of the reflecting plate 10 in an annular array manner by taking b as a radius, the low-frequency oscillator array comprises a plurality of low-frequency oscillators 40 which are distributed at the top center of the reflecting plate 10 in an annular array manner by taking c as a radius, and a < b < c; the high-frequency vibrator 20, the intermediate-frequency vibrator 30 and the low-frequency vibrator 40 are staggered; the low-frequency oscillator 40 is a PIFA antenna, the low-frequency oscillator 40 comprises a first grounding pin 41, a second grounding pin 42 and a feed pin 43, the first grounding pin 41 extends for a quarter wavelength in three directions of a horizontal plane and is connected with the reflecting plate 10, the second grounding pin 42 is connected with a shielding layer of a radio-frequency coaxial line, and the feed pin 43 is connected with a core wire of the radio-frequency coaxial line; an isolation slit 11 is provided between the low frequency vibrator 40 and the center of the reflection plate 10.
Based on the above embodiment, the intermediate frequency vibrator 30 and the high frequency vibrator 20 are horizontally polarized vibrators, the intermediate frequency vibrator 30 and the high frequency vibrator 20 are each composed of four parallel arc folded vibrators 21, and the parallel connection nodes of the four arc folded vibrators 21 are connected with the radio frequency coaxial line.
Based on the above embodiment, the intermediate frequency vibrator 30 and the high frequency vibrator 20 are supported on top of the reflecting plate 10 by a plurality of support columns 31.
Based on the above embodiment, the high-frequency vibrator array, the intermediate-frequency vibrator array, and the low-frequency vibrator array include four high-frequency vibrators 20, four intermediate-frequency vibrators 30, and four low-frequency vibrators 40, respectively.
Based on the above embodiment, the high frequency vibrator 20, the intermediate frequency vibrator 30, and the low frequency vibrator 40 are a 6G band vibrator, a 5G band vibrator, and a 2.4G band vibrator, respectively.
When the antenna works, the omnidirectional radiation and isolation of low, medium and high frequency can be effectively improved, the parallel feed type folded vibrator array is beneficial to improving the antenna impedance bandwidth and the pattern bandwidth, the selection of the horizontal polarized vibrators is more in line with the ceiling application scene, the polarization matching degree with a communication terminal is beneficial to improving, the effects of large bandwidth, omnidirectional radiation, high isolation and multi-antenna integration can be realized, and the overall improvement of the communication quality of the system is beneficial.
The above embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (5)
1. The multi-band ceiling array antenna is characterized by comprising a plurality of radio frequency coaxial lines, a reflecting plate, a high-frequency oscillator array, an intermediate-frequency oscillator array and a low-frequency oscillator array; the high-frequency oscillator array comprises a plurality of high-frequency oscillators which are distributed in the center of the top of the reflecting plate in an annular array mode with a as a radius, the medium-frequency oscillator array comprises a plurality of medium-frequency oscillators which are distributed in the center of the top of the reflecting plate in an annular array mode with b as a radius, the low-frequency oscillator array comprises a plurality of low-frequency oscillators which are distributed in the center of the top of the reflecting plate in an annular array mode with c as a radius, and a < b < c; the high-frequency vibrator, the intermediate-frequency vibrator and the low-frequency vibrator are staggered; the low-frequency oscillator is a PIFA antenna and comprises a first grounding pin, a second grounding pin and a feed pin, wherein the first grounding pin is connected with the reflecting plate after extending for a quarter of wavelength in three directions of a horizontal plane, the second grounding pin is connected with a shielding layer of the radio frequency coaxial line, and the feed pin is connected with a core wire of the radio frequency coaxial line; an isolation gap is arranged between the low-frequency vibrator and the center of the reflecting plate.
2. The multi-band ceiling array antenna according to claim 1, wherein the intermediate frequency oscillator and the high frequency oscillator are horizontally polarized oscillators, each of the intermediate frequency oscillator and the high frequency oscillator is composed of four parallel arc folded oscillators, and parallel connection nodes of the four arc folded oscillators are connected with the radio frequency coaxial line.
3. The multi-band ceiling array antenna according to claim 2, wherein the intermediate frequency oscillator and the high frequency oscillator are supported on the top of the reflecting plate through a plurality of support columns.
4. A multi-band ceiling array antenna according to claim 3 wherein said high frequency element array, intermediate frequency element array, low frequency element array comprise four of said high frequency elements, four of said intermediate frequency elements, four of said low frequency elements, respectively.
5. The multi-band ceiling array antenna according to claim 4, wherein the high frequency oscillator, the intermediate frequency oscillator, and the low frequency oscillator are 6G band oscillator, 5G band oscillator, and 2.4G band oscillator, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322164897.9U CN220604987U (en) | 2023-08-12 | 2023-08-12 | Multi-band ceiling array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322164897.9U CN220604987U (en) | 2023-08-12 | 2023-08-12 | Multi-band ceiling array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220604987U true CN220604987U (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322164897.9U Active CN220604987U (en) | 2023-08-12 | 2023-08-12 | Multi-band ceiling array antenna |
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| Country | Link |
|---|---|
| CN (1) | CN220604987U (en) |
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2023
- 2023-08-12 CN CN202322164897.9U patent/CN220604987U/en active Active
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