阅读说明：本技术 4t12r对称天线系统及多输入多输出的功率均衡方法 (4T12R symmetrical antenna system and multi-input multi-output power balancing method ) 是由 刘巍滟 刘类英 冯愉 刘力 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种4T12R对称天线系统,包括对称4路传输及功率均衡模块和对称12路宽带天线模块,所述对称12路宽带天线模块包括尺寸相同且位置相互平行的12路辐射天线,每路所述路辐射天线分别与所述对称4路传输及功率均衡模块连接；本发明还公开了一种应用上述4T12R对称天线系统进行多输入多输出的功率均衡方法。本发明通过对称12路宽带微带阵列天线接收多个功率均衡模块处理发送的12路等幅等频且相位差为0度的射频信号后并发送辐射信号,从而在空间沿12路传输方向形成12路幅度相位一致且覆盖范围一致的辐射信号,使移动终端在信号覆盖的范围内移动时都能够接收12路等幅等相的辐射信号,具有良好的接收效果。(The invention discloses a 4T12R symmetrical antenna system, which comprises a symmetrical 4-path transmission and power balancing module and a symmetrical 12-path broadband antenna module, wherein the symmetrical 12-path broadband antenna module comprises 12 radiation antennas with the same size and mutually parallel positions, and each path of radiation antenna is respectively connected with the symmetrical 4-path transmission and power balancing module; the invention also discloses a multi-input multi-output power balancing method by applying the 4T12R symmetrical antenna system. The invention receives 12 paths of radio frequency signals which are processed and sent by a plurality of power equalization modules through a symmetrical 12 paths of broadband microstrip array antennas, have the same amplitude and the same frequency and have the phase difference of 0 degree, and then sends radiation signals, thereby forming 12 paths of radiation signals with the same amplitude and phase and the same coverage range along the 12 paths of transmission directions in space, enabling the mobile terminal to receive the 12 paths of radiation signals with the same amplitude and the same phase when moving in the signal coverage range, and having good receiving effect.)

1. A4T 12R symmetric antenna system is characterized by comprising a symmetric 4-path transmission and power equalization module and a symmetric 12-path broadband antenna module, wherein the symmetric 12-path broadband antenna module comprises 12 radiation antennas with the same size and mutually parallel positions, and each radiation antenna is respectively connected with the symmetric 4-path transmission and power equalization module; wherein:

the symmetrical 4-path transmission and power equalization module is used for performing power distribution on the received 4 paths of radio-frequency signals with equal amplitude, equal frequency and same phase, generating 12 paths of radio-frequency signals with equal power and respectively sending the 12 paths of radio-frequency signals to the 12 paths of radiation antennas;

and the radiation antenna is used for receiving 1 path of radio frequency signals from the symmetrical 4 paths of transmission and power equalization modules and sending 1 path of radiation signals.

2. The symmetrical 4T12R antenna system according to claim 1, wherein the symmetrical 4-way transmission and power equalization module comprises a 4T12R small base station and a power equalization module, the signal output terminal of the 4T12R small base station is connected to the signal input terminal of the power equalization module, the power equalization module has 12 signal output terminals respectively connected to the 12-way radiating antennas; wherein:

the 4T12R small base station is used for generating 4 paths of radio frequency signals with equal amplitude and equal frequency and sending the signals to the power balancing module;

and the power balancing module is used for performing power distribution on the received 4 paths of radio frequency signals to generate 12 paths of radio frequency signals with equal power, adjusting the phase difference of the 12 paths of radio frequency signals to 0 degree, and then respectively sending the 12 paths of radio frequency signals after balanced distribution to the 12 paths of radiation antennas.

3. The symmetric 4T12R antenna system according to claim 2, wherein the power equalizing module comprises a radio frequency power equalizer and 12 feeders, the radio frequency power equalizer has 12 symmetric signal outputs, and the 12 signal outputs of the radio frequency power equalizer are respectively connected to the 12 radiating antennas through the 12 feeders; wherein:

the radio frequency power equalizer is used for equally dividing the received 4 paths of radio frequency signals into 12 paths of radio frequency signals, adjusting the power and the phase of the 12 paths of radio frequency signals according to the phase difference of the 12 paths of radio frequency signals and the amplitude difference of the 12 feeders, equalizing and distributing the power of the 12 paths of radio frequency signals, enabling the phase and the amplitude of the 12 paths of radio frequency signals to be the same, and simultaneously sending the 12 paths of radio frequency signals after being equalized and distributed to the 12 feeders respectively;

and the feeder line is used for receiving the 1 path of radio frequency signals from the radio frequency power equalizer and sending the path of radio frequency signals to the 1 path of radiation antenna.

4. A multi-input multi-output power equalization method is characterized by comprising the following steps:

s1, receiving 4 paths of radio frequency signals with equal amplitude, equal frequency and same phase, performing power distribution on the 4 paths of radio frequency signals, generating 12 paths of radio frequency signals with equal power, and respectively sending the 12 paths of radio frequency signals to 12 paths of radiation antennas;

and S2, each path of radiation antenna receives the 1 path of radio frequency signal and sends the 1 path of radiation signal.

5. The method according to claim 4, wherein the step S1 specifically includes:

s11 and 4T12R small base stations generate 4 paths of radio frequency signals with equal amplitude and equal frequency;

and S12, performing power distribution on the received 4 paths of radio frequency signals to generate 12 paths of radio frequency signals with equal power, adjusting the phase difference of the 12 paths of radio frequency signals to 0 degree, and then respectively sending the 12 paths of radio frequency signals after balanced distribution to the 12 paths of radiation antennas.

6. The method for equalizing multiple-input multiple-output power of claim 5, wherein step S11 specifically comprises:

s111, equally dividing the received 4 paths of radio frequency signals into 12 paths of radio frequency signals, adjusting the power and the phase of the 12 paths of radio frequency signals according to the phase difference of the 12 paths of radio frequency signals and the amplitude difference of the 12 feeders, balancing and distributing the power of the 12 paths of radio frequency signals to enable the phase and the amplitude of the 12 paths of radio frequency signals to be the same, and simultaneously respectively sending the 12 paths of radio frequency signals after balanced distribution to the 12 feeders;

and S112, each feeder line respectively receives 1 path of radio frequency signals from the radio frequency power equalizer and sends the path of radio frequency signals to 1 path of radiation antenna.

Technical Field

The invention relates to the field of communication, in particular to a 4T12R symmetric antenna system and a multi-input multi-output power balancing method.

Background

With the development of mobile communication technology, Multiple-Input Multiple-output (MIMO) technology has been applied to various mobile communication systems to increase system capacity, wherein MIMO-applied MIMO antenna systems are mostly 2T2R, 4T4R and 4T12R, and at present, there is no application of balanced distribution technology for rf signals with less Input and Multiple output, and as 5G communication is rapidly developed, 4T12R antenna system will be applied more widely.

Moreover, due to the structural process and quality limitations of the original indoor coverage system, the coverage ranges, amplitudes and phases of the multiple paths of radiation signals transmitted at the same point are inconsistent, so that the mobile terminal can only receive multiple paths of radio frequency signals with uneven amplitudes under the coverage of signals in the same area in the moving process, the receiving effect is poor, and the MIMO application effect is poor.

Disclosure of Invention

In view of the above problems, the present invention provides a 4T12R symmetric antenna system, and provides a mimo power equalization method using the system, where the system receives 12 channels of radio frequency signals with equal amplitude and equal frequency and a phase difference of 0 degree, which are processed and transmitted by multiple power equalization modules, through a symmetric 12-channel broadband microstrip array antenna, and then transmits a radiation signal, so that 12 channels of radiation signals with equal amplitude and equal phase and a uniform coverage range are formed in a space along a 12-channel transmission direction, and a mobile terminal can receive 12 channels of radiation signals with equal amplitude and equal phase when moving within a signal coverage range, thereby having a good receiving effect.

The technical scheme of the invention is as follows:

A4T 12R symmetrical antenna system comprises a symmetrical 4-path transmission and power balancing module and a symmetrical 12-path broadband antenna module, wherein the symmetrical 12-path broadband antenna module comprises 12 radiation antennas which have the same size and are parallel to each other in position, and each path of radiation antenna is respectively connected with the symmetrical 4-path transmission and power balancing module; wherein:

the symmetrical 4-path transmission and power equalization module is used for performing power distribution on the received 4 paths of radio-frequency signals with equal amplitude, equal frequency and same phase, generating 12 paths of radio-frequency signals with equal power and respectively sending the 12 paths of radio-frequency signals to the 12 paths of radiation antennas;

and the radiation antenna is used for receiving 1 path of radio frequency signals from the symmetrical 4 paths of transmission and power equalization modules and sending 1 path of radiation signals.

The working principle of the technical scheme is as follows:

the system receives 12 paths of radio-frequency signals which are sent by the power equalization module and have the same amplitude and the same frequency and the phase difference of 0 degree through 12 same-phase and same-amplitude radiation antennas on the symmetrical 12 paths of broadband microstrip array antenna modules, and sends the radiation signals, so that 12 paths of radiation signals with the same amplitude and phase and the same coverage range are formed in space, and the mobile terminal can receive the 12 paths of radiation signals with the same amplitude and the same phase when moving in the signal coverage range, and has a good receiving effect.

In a further technical solution, the symmetrical 4-path transmission and power equalization module includes a 4T12R small base station and a power equalization module, a signal output end of the 4T12R small base station is connected to a signal input end of the power equalization module, and the power equalization module has 12 signal output ends respectively connected to 12 paths of radiation antennas; wherein:

the 4T12R small base station is used for generating 2 paths of radio frequency signals with equal amplitude and equal frequency and sending the signals to the power balancing module;

and the power balancing module is used for performing power distribution on the received 4 paths of radio frequency signals to generate 12 paths of radio frequency signals with equal power, adjusting the phase difference of the 12 paths of radio frequency signals to 0 degree, and then respectively sending the 12 paths of radio frequency signals after balanced distribution to the 12 paths of radiation antennas.

The power equalization module is used for carrying out phase processing on the radio-frequency signals, so that 12 paths of radio-frequency signals are equal in frequency, equal in amplitude and same in phase, 12 paths of radio-frequency signals with consistent amplitude and phase and consistent in coverage range are formed in space, and the technical problems that the amplitude of a plurality of paths of radio-frequency signals under the coverage of signals in the same area is uneven and the receiving effect is poor are solved.

In a further technical solution, the power equalization module includes a radio frequency power equalizer and 12 feeders, the radio frequency power equalizer has 12 symmetrical signal output ends, and the 12 signal output ends of the radio frequency power equalizer are respectively connected with 12 radiating antennas through the 12 feeders; wherein:

the radio frequency power equalizer is used for equally dividing the received 2 paths of radio frequency signals into 12 paths of radio frequency signals, adjusting the power and the phase of the 12 paths of radio frequency signals according to the phase difference of the 12 paths of radio frequency signals and the amplitude difference of the 12 feeders, equalizing and distributing the power of the 12 paths of radio frequency signals, enabling the phase and the amplitude of the 12 paths of radio frequency signals to be the same, and simultaneously sending the 12 paths of radio frequency signals after being equalized and distributed to the 12 feeders respectively;

and the feeder line is used for receiving the 1 path of radio frequency signals from the radio frequency power equalizer and sending the path of radio frequency signals to the 1 path of radiation antenna.

The 12 paths of radiation antennas are respectively connected with the radio frequency power equalizer through 12 paths of feeder lines, so that the timeliness and the accuracy of signal transmission are ensured.

In a further technical solution, the symmetric 12-way broadband antenna module is a symmetric 12-way broadband microstrip array antenna module.

And the backward radiation is reduced, and the consistency of the coverage range of 12 paths of radiation signals is ensured.

The invention also provides a method for carrying out multi-input multi-output power equalization by applying the 4T12R symmetrical antenna system, which adopts the technical scheme that:

a multi-input multi-output power equalization method comprises the following steps:

s1, receiving 4 paths of radio frequency signals with equal amplitude, equal frequency and same phase, performing power distribution on the 4 paths of radio frequency signals, generating 12 paths of radio frequency signals with equal power, and respectively sending the 12 paths of radio frequency signals to 12 paths of radiation antennas;

and S2, each path of radiation antenna receives the 1 path of radio frequency signal and sends the 1 path of radiation signal.

In a further technical solution, step S1 specifically includes:

s11 and 4T12R small base stations generate 4 paths of radio frequency signals with equal amplitude and equal frequency;

and S12, performing power distribution on the received 4 paths of radio frequency signals to generate 12 paths of radio frequency signals with equal power, adjusting the phase difference of the 12 paths of radio frequency signals to 0 degree, and then respectively sending the 12 paths of radio frequency signals after balanced distribution to the 12 paths of radiation antennas.

In a further technical solution, step S11 specifically includes:

s111, equally dividing the received 4 paths of radio frequency signals into 12 paths of radio frequency signals, adjusting the power and the phase of the 12 paths of radio frequency signals according to the phase difference of the 12 paths of radio frequency signals and the amplitude difference of the 12 feeders, balancing and distributing the power of the 12 paths of radio frequency signals to enable the phase and the amplitude of the 12 paths of radio frequency signals to be the same, and simultaneously respectively sending the 12 paths of radio frequency signals after balanced distribution to the 12 feeders;

and S112, each feeder line respectively receives 1 path of radio frequency signals from the radio frequency power equalizer and sends the path of radio frequency signals to 1 path of radiation antenna.

The working principle of the 5G signal coverage of the invention is as follows: an outdoor 5G macro base station sends signals to an indoor 4T12R small base station through a cable, the 4T12R small base station transmits radio frequency signals to a radio frequency power equalizer through two radio frequency transmission lines, the radio frequency power equalizer is connected with 12 symmetrical radiation antennas, the radio frequency power equalizer equalizes and distributes the power of the radio frequency signals through an internal coupling circuit, certain power (preset value) is distributed to the 12 radiation antennas according to certain proportion, the radio frequency power equalizer is also connected with the next radio frequency power equalizer through other two radio frequency transmission lines, the radio frequency power equalizer and the 12 radiation antennas in each group form a node, signal coverage of the whole indoor floor is realized through the series connection of a plurality of nodes, the lengths of the radio frequency transmission lines connecting the two adjacent radio frequency power equalizers are equal, and four radio frequency transmission lines connected with two ends of the same radio frequency power equalizer need to ensure high symmetry, and a plurality of radiation antennas connected with each radio frequency power equalizer need to ensure high symmetry, so that radio frequency signals can keep phase consistency all the time. The power distributed to each path of radiating antenna in each node is kept consistent, so that the power proportion distributed to the corresponding radiating antenna by the radio frequency power equalizer on different nodes is different, and the loss of a radio frequency signal during transmission of the radio frequency transmission line is known because the length of the radio frequency transmission line is preset, so that the power proportion distributed to the radiating antenna in each node by the radio frequency power equalizer in each node is as follows: the allocated power/(power transmitted from the previous node — power loss) of the predetermined radiation antenna.

The invention has the beneficial effects that:

1. the system receives 12 paths of radio-frequency signals which are sent by the power equalization module and have the same amplitude and the same frequency and the phase difference of 0 degree through 12 same-phase and same-amplitude radiation antennas on the symmetrical 12 paths of broadband microstrip array antenna modules, and sends the radiation signals, so that 12 paths of radiation signals with the same amplitude and phase and the same coverage range are formed in space, and the mobile terminal can receive the 12 paths of radiation signals with the same amplitude and the same phase when moving in the signal coverage range, and has a good receiving effect.

2. The power equalization module is used for carrying out phase processing on the radio-frequency signals, so that 12 paths of radio-frequency signals are equal in frequency, equal in amplitude and same in phase, 12 paths of radio-frequency signals with consistent amplitude and phase and consistent in coverage range are formed in space, and the technical problems that the amplitude of a plurality of paths of radio-frequency signals under the coverage of signals in the same area is uneven and the receiving effect is poor are solved.

3. The 12 paths of radiation antennas are respectively connected with the radio frequency power equalizer through 12 paths of feeder lines, so that the timeliness and the accuracy of signal transmission are ensured.

4. And the 12-path symmetrical broadband microstrip array antenna is adopted, so that the back radiation can be reduced, and the consistency of the coverage range of 12-path radiation signals is ensured.

Drawings

Fig. 1 is a flowchart of a 4T12R symmetric antenna system according to an embodiment of the present invention.

Description of reference numerals:

1. 4T12R small base station; 2. a radio frequency power equalizer; 3. a feeder line; 4. a radiating antenna.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.