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Large-scale MIMO active antenna array applied to 5G millimeter wave communication

An active antenna and antenna array technology, applied in the field of antenna arrays, can solve the problems of millimeter-wave frequency signal diffraction, poor penetration, inability to achieve high-power transmission, and limit the application of millimeter-wave frequency bands, and achieve widening angle scanning. The effect of good range, channel-to-channel consistency, and short signal transmission path

Active Publication Date: 2019-07-05
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limitations of devices and processes, it is difficult to achieve high-power transmission in the millimeter-wave frequency band, and the transmission path loss of the millimeter-wave frequency band signal in the air is relatively large, which limits the application of the millimeter-wave frequency band in wide-area coverage communications; on the other hand , the diffraction power and penetrating power of millimeter-wave frequency signals are poor, and they are easily blocked by obstacles such as tall buildings and large billboards. In an environment with many obstacles, the communication link is unstable, and it is easy to cause communication signal interruption. It is also prone to signal blind spots

Method used

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  • Large-scale MIMO active antenna array applied to 5G millimeter wave communication
  • Large-scale MIMO active antenna array applied to 5G millimeter wave communication
  • Large-scale MIMO active antenna array applied to 5G millimeter wave communication

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Embodiment 1

[0034] Such as Figure 1 to Figure 4 as shown, figure 1 It is a schematic diagram of a side view structure of a massive MIMO active antenna array applied to 5G millimeter wave communication according to the present invention; figure 2 It is a front view of the structure of the massive MIMO active antenna array applied to 5G millimeter wave communication according to the present invention; image 3 It is a rear view of the structure of the massive MIMO active antenna array applied to 5G millimeter wave communication according to the present invention; Figure 4 It is a three-dimensional structure diagram of a massive MIMO active antenna array applied to 5G millimeter wave communication according to the present invention. MIMO (Multiple-Input Multiple-Output Multivariable Control System)

[0035] In this embodiment, the massive MIMO active antenna array works in the Ka band, and the array size is 16×16; the massive MIMO active antenna array applied to 5G millimeter wave comm...

Embodiment 2

[0053] Preferably, the multi-function board 2 is also provided with a partial heat dissipation structure for the heat generated by the multi-channel TR assembly. The thermal conduction vias 50 are arranged in an array, and the ends of the thermal conduction vias 50 are respectively connected to the thermal pads of the multi-channel TR assembly and the second reference ground layer 18, and the second reference ground layer 18 is The metal layer has better thermal conductivity, and part of the heat generated by the multi-channel TR assembly can be conducted to the second reference formation 18 through the heat conduction via 50, and then transmitted laterally, so as to radiate into the space through the lateral direction .

[0054] Preferably, in order to ensure a better heat dissipation effect, a heat sink is arranged on the upper surface of the multi-channel TR assembly, such as figure 1 The first heat sink 51, the second heat sink 52, the third heat sink 53, and the fourth h...

Embodiment 3

[0056] The radio frequency power distribution network 29 is in the form of a stripline, with metal formations on the upper and lower layers and metallized through holes around it. Shielding, its electromagnetic compatibility is better, and the mutual influence between other parts of the circuit is small, the power synthesis port of the radio frequency power distribution network 29 is connected to the 50Ω microstrip line of the antenna unit 10 through a metallized through hole , to realize the synthesis of signals; the power distribution port of the radio frequency power distribution network 29 is connected to the pad layer 19 of the TR assembly through a metallized through hole, and the excitation signal is evenly distributed to each of the multi-channel TR assemblies, and then passed through Each channel of the multi-channel TR component is amplified and phase-shifted to realize power distribution to the antenna and complete signal radiation.

[0057] The unit distribution n...

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Abstract

The invention discloses a large-scale MIMO active antenna array applied to 5G millimeter wave communication. The large-scale MIMO active antenna array comprises an antenna array, a multifunctional board, a multi-channel TR module and a wave control power supply module, wherein the antenna array is correspondingly arranged on the multifunctional board, and the multi-channel TR module and the wave control power supply module are fixed on the multifunctional board and connected with the antenna array; the invention adopts a large-scale array antenna technology to achieve directional signal transmission, utilizes the directional gain of the phased array antenna to offset the space path loss of the signals, and utilizes the characteristic of dynamically adjustable beam pointing of the phased array antenna to achieve the multiplexing of the space dimensionality of the signals to greatly reduce the mutual interference among users, powerfully improve the capacity of the system and achieve low-power and high-efficiency signal transmission.

Description

technical field [0001] The invention relates to the technical field of antenna arrays, in particular to a massive MIMO active antenna array applied to 5G millimeter wave communication. Background technique [0002] With the development of wireless communication technology, especially mobile Internet and Internet of Things communication technology, people's demand for network services with high data transmission rate and high data capacity is becoming more and more obvious. However, as wireless network devices and mobile terminals working in various modes applications (2 / 3 / 4G networks, WiFi, Bluetooth, etc.), the spectrum in the low frequency band (below 3GHz) is already extremely crowded, the electromagnetic environment is becoming more and more complex, and the mutual influence between various wireless devices is increasing day by day, and the frequency band Spectrum resources are facing the risk of exhaustion, which seriously restricts the improvement of data transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/06H01Q21/00H01Q1/38H01Q1/48H01Q1/50H01Q1/00H01Q19/10
CPCH01Q1/02H01Q1/38H01Q1/48H01Q1/50H01Q19/104H01Q21/0006H01Q21/065
Inventor 何朝升陈俐郑林华卢晓鹏张雪雷张晨吕春明夏润梁肖圣兵潘永强
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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