CN215377692U

CN215377692U - 5G array antenna

Info

Publication number: CN215377692U
Application number: CN202022797116.6U
Authority: CN
Inventors: 叶盛洋; 徐明森; 周星; 钱聪; 张宠; 赖海友
Original assignee: Zhejiang Shengyang Science & Technology Co ltd
Current assignee: Zhejiang Shengyang Science & Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-12-31
Anticipated expiration: 2030-11-27

Abstract

The invention discloses a 5G array antenna, which is characterized in that: the radio frequency connector is characterized by comprising a dense radiation array, a reflecting plate, a PCB (printed circuit board) and a radio frequency connector, wherein the dense radiation array consists of N multiplied by M dual-polarized oscillators, each dual-polarized oscillator comprises a radiation unit and a feed sheet, the radiation units and the feed sheets are stacked up and down, the radiation units are printed on the PCB, and the feed sheets are fixedly arranged on the reflecting plate; the PCB is also printed with a calibration network and a feed network, a port of the feed network is welded with a radio frequency connector, and the dual-polarized oscillator and the feed network form a radio frequency channel together; the 5G array antenna has the characteristics of realizing low-delay communication, increasing radiation efficiency and increasing the filtering characteristic of the antenna array.

Description

5G array antenna

Technical Field

The invention relates to the field of wireless communication, in particular to a 5G array antenna.

Background

The most important characteristics of 5G are big data, people connection and scene experience (mobile internet + internet of things). The big data, namely the data volume is large, the data rate is high, the data service is the main, and support is provided for the development of the mobile internet; the numerous connection is accessed by a large number of terminal users of the Internet of things, and all connection capabilities are provided; the scene experience is to provide a high user experience corresponding to different scenes. At the moment, the magnitude of order explosive growth of mobile communication data and internet of things communication data occurs, and the existing communication base system cannot meet the requirements of large data throughput, low time delay and high reliability.

In view of the above problems, the present invention provides a 5G array antenna, and the present invention is derived therefrom.

Disclosure of Invention

The invention provides a 5G array antenna, which has the characteristics of realizing low-delay communication, increasing radiation efficiency and increasing the filtering characteristic of an antenna array; specifically, the invention is realized by the following technical scheme:

A5G array antenna comprises a dense radiation array, a reflecting plate, a PCB and a radio frequency connector, wherein the dense radiation array consists of N multiplied by M dual-polarized oscillators, each dual-polarized oscillator comprises a radiation unit and a feed sheet, the radiation unit and the feed sheet are stacked up and down, the radiation unit is printed on the PCB, and the feed sheet is fixedly arranged on the reflecting plate; the PCB is also printed with a calibration network and a feed network, a radio frequency connector is welded at the port of the feed network, and a radio frequency channel is formed by the dual-polarized oscillator and the feed network.

Further, the calibration network is a multi-stage calibration network formed by cascading a plurality of directional couplers through power division, and the multi-stage calibration network comprises a sub-calibration circuit and a lumped calibration circuit connected with the sub-calibration circuit.

Furthermore, the sub-calibration circuit is a microstrip circuit, and the sub-calibration circuit is centrosymmetric relative to the surrounding radio frequency channel.

Further, the lumped calibration circuit set is centrosymmetric with respect to each sub-calibration circuit and the radio frequency channel corresponding to the sub-calibration circuit.

Furthermore, the transverse distance between each radiation unit is dx, the longitudinal distance is dy, wherein dx is more than or equal to 0.45 lambda and less than or equal to 0.65 lambda, dy is more than or equal to 0.55 lambda and less than or equal to 0.85 lambda, and lambda is the wavelength.

Furthermore, a decoupling device is arranged between each row of radiating elements, and the decoupling device is printed on the PCB in the form of a microstrip circuit.

Further, the dense radiation array is composed of 4 × 4, 32 × 32, or 128 × 128 dual-polarized elements.

The beneficial effect of this application lies in:

1. the invention can realize 3-5G dual-polarized array antenna and meet the requirement of a 5G system.

2. The dense radiation array equipment decoupling device ensures that the radiation patterns of all radio frequency channels have good consistency, thereby ensuring good electrical indexes such as standing-wave ratio and the like, and enabling the antenna port environments to tend to be consistent, and having high precision, stability and consistency.

3. The multi-technology adopted by the multi-stage calibration network ensures good amplitude-phase consistency of all directional coupling channels.

4, the Multiple Input Multiple Output (MIMO) technology of the invention can improve the system capacity by times without increasing the frequency spectrum resource and the antenna transmitting power.

The invention uses the antenna units in the provided physical antenna array to correspond to the transceiving channels of 5G signals, carries out beam forming and sending according to the physical downlink of the transmission mode which is sent by the transceiving channels and carries out data demodulation by using signals, and carries out beam forming and sending according to the data sent on the transceiving channels and the standard power transceiving channels. By utilizing the principle that the wave beams of the antenna units are wide wave beams and the multiple antenna units form the wide wave beams, the power loss caused by the multiple antenna units when shaping weight is introduced is avoided, namely, the weight loss during beam shaping is reduced, the coverage range of a base station is improved when the wide wave beams are formed, and the requirements of a 5G system are met; and because the transmitting power supported by the transceiving channel is greater than that supported by the standard power transceiving channel, even if the transceiving channel is adopted and a small amount of weight loss is generated, the formed beam is also a wide beam, and the coverage range of the base station is also improved.

The technology of the invention can fully utilize space resources, improve the utilization efficiency of frequency spectrum, improve the system channel capacity by times under the condition of not increasing the frequency spectrum resources and the antenna transmitting power, and has obvious technical advantages in the aspects of reducing the construction and maintenance cost of a base station, reducing channel interference and realizing low-delay communication.

Drawings

Fig. 1 is a schematic diagram of a PCB board inside a 5G array antenna and a structure arranged on the PCB board according to the present invention;

fig. 2 is a schematic view of a reflector and a structure disposed on the reflector according to the present invention.

Wherein: 1. a decoupling device; 2. a reflective plate; 3, PCB board; 4. a radio frequency connector; 5. a radiation unit; 6. a feeding tab.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1 and 2, a 5G array antenna comprises a dense radiation array, a reflection plate 2, a PCB 3 and a radio frequency connector 4, wherein the dense radiation array is composed of N × M dual-polarized oscillators, each dual-polarized oscillator comprises a radiation unit 5 and a feed tab 6, the radiation unit 5 and the feed tab 6 are stacked up and down, the radiation unit 5 is printed on the PCB 3, and the feed tab 6 is fixedly mounted on the reflection plate 2; the PCB 3 is also printed with a calibration network and a feed network, a port of the feed network is welded with a radio frequency connector 4, and a dual-polarized oscillator and the feed network form a radio frequency channel together; the PCB 3 is arranged on the upper shell of the antenna, the reflecting plate 2 is arranged on the lower shell of the antenna, and the two antenna shells are assembled to realize the vertical stacking of the radiation unit 5 and the feed plate 6.

The calibration network is a multi-stage calibration network formed by cascading a plurality of directional couplers through power division, and comprises sub-calibration circuits and lumped calibration circuits connected with the sub-calibration circuits.

The sub-calibration circuits are all designed as microstrip circuits with the same physical structure, and the sub-calibration circuits are centrosymmetric relative to the surrounding radio frequency channels.

And the lumped calibration circuit set is in column central symmetry relative to the sub-calibration circuits and the radio frequency channels corresponding to the sub-calibration circuits.

The radiation units 5 of the dense radiation array have a transverse distance dx and a longitudinal distance dy, wherein the dx is more than or equal to 0.45 lambda and less than or equal to 0.65 lambda, the dy is more than or equal to 0.55 lambda and less than or equal to 0.85 lambda, and the lambda is the wavelength.

Between each row of radiating elements 5 there is arranged a decoupling device 1, which decoupling device 1 is printed in the form of a microstrip circuit on a PCB board 3.

Preferably, the dense radiation array consists of 4 × 4 dual-polarized oscillators; the working principle of the 5G array antenna is as follows: the vertical and horizontal antenna interactive lattice, the vertical and horizontal antenna, corresponding to the vertical and horizontal polarization direction radio frequency channel to realize the wireless transmission signal receiving and transmitting, adopting 4X4 lattice, the multi lattice radiation to feed and excite, amplify, high precision, better stability and consistency low time delay MIMO communication.

The dense radiating array may also be composed of 8 × 8, 32 × 32 or 128 × 128 dual-polarized elements.

The above is the preferred embodiment of the present invention, and several other simple substitutions and modifications made on the premise of the inventive concept should be considered as falling into the protection scope of the present invention.

Claims

1. A 5G array antenna, characterized by: the antenna comprises a dense radiation array, a reflecting plate, a PCB (printed circuit board) and a radio frequency connector, wherein the dense radiation array consists of N multiplied by M dual-polarized oscillators, each dual-polarized oscillator comprises a radiation unit and a feed sheet, the radiation units and the feed sheets are stacked up and down, the radiation units are printed on the PCB, the feed sheets are fixedly installed on the reflecting plate, the PCB is arranged on an upper shell of the antenna, the reflecting plate is arranged on a lower shell of the antenna, and the upper shell and the lower shell of the antenna are connected and assembled; the PCB is also printed with a calibration network and a feed network, a port of the feed network is welded with a radio frequency connector, and the dual-polarized oscillator and the feed network form a radio frequency channel together; decoupling means are arranged between each row of radiating elements, which decoupling means are printed on the PCB board in the form of microstrip circuits.

2. A 5G array antenna according to claim 1, wherein: the calibration network is a multi-stage calibration network formed by cascading a plurality of directional couplers through power division, and comprises a sub-calibration circuit and a lumped calibration circuit connected with the sub-calibration circuit.

3. A 5G array antenna according to claim 2, wherein: the sub-calibration circuit is a microstrip circuit, and the sub-calibration circuit is centrosymmetric relative to the surrounding radio frequency channel.

4. A 5G array antenna according to claim 2, wherein: the lumped calibration circuit sets are centrosymmetric with respect to the respective sub-calibration circuits and the radio frequency channels corresponding to the sub-calibration circuits.

5. A 5G array antenna according to claim 1, wherein: the transverse distance between each two radiation units is dx, the longitudinal distance is dy, wherein dx is more than or equal to 0.45 lambda and less than or equal to 0.65 lambda, dy is more than or equal to 0.55 lambda and less than or equal to 0.85 lambda, and lambda is the wavelength.

6. A5G array antenna as claimed in claim 1 or 5, wherein: the dense radiating array is composed of 4 × 4, 32 × 32 or 128 × 128 dual-polarized elements.