CN-122000684-A - Phased array antenna subarray framework

CN122000684ACN 122000684 ACN122000684 ACN 122000684ACN-122000684-A

Abstract

The application discloses a phased array antenna subarray framework which comprises an antenna radio frequency plate, a structural part and a control power panel, wherein the antenna radio frequency plate is connected with the control power panel, the structural part is arranged between the antenna radio frequency plate and the control power panel, the antenna radio frequency plate is arranged on the upper surface of the structural part, the control power panel is arranged on the lower surface of the structural part, the height H of the structural part is configured to enable a physical isolation space to be formed between the antenna radio frequency plate and the control power panel, and the structural part is used as a heat dissipation channel and an electromagnetic shielding layer of the phased array antenna subarray and used for isolating radio frequency signals of the antenna radio frequency plate and control power signals of the control power panel. According to the application, the antenna radio frequency is separated from the control power supply, so that the isolation of signals in the subarrays is improved, the large-scale applicability of the phased array subarrays is improved, meanwhile, the antenna radio frequency is separated from the control power supply, so that the processing difficulty and period of a printed board can be reduced, the cost of the printed board is reduced, and the universality of the phased array is improved.

Inventors

ZHAO WEI
LIU JIANG
LIU BIN
CHEN RONGSHENG
CHENG WEI
YUAN YANWU
QUAN YUAN
CHENG XIAOWEI
Cai Tuan
ZHANG YONGKANG
ZHANG LINLIN

Assignees

合肥九盛卫星科技有限公司

Dates

Publication Date: 20260508
Application Date: 20251226

Claims (10)

1. A phased array antenna subarray framework is characterized by comprising an antenna radio frequency plate, a structural member and a control power panel, wherein the antenna radio frequency plate is connected with the control power panel, the structural member is positioned between the antenna radio frequency plate and the control power panel, the antenna radio frequency plate is arranged on the upper surface of the structural member, the control power panel is arranged on the lower surface of the structural member, the height H of the structural member is configured to enable a physical isolation space to be formed between the antenna radio frequency plate and the control power panel, and the structural member is used as a heat dissipation channel and an electromagnetic shielding layer of the phased array antenna subarray and is used for isolating radio frequency signals of the antenna radio frequency plate and control power signals of the control power panel.
2. The phased array antenna subarray architecture of claim 1, wherein the antenna radio frequency board comprises a first printed board, antenna units, radio frequency chips and a first connector, wherein the antenna units are arranged on the upper surface of the first printed board at equal intervals, the radio frequency chips and the first connector are arranged on the lower surface of the first printed board, and the radio frequency chips are connected with the antenna units.
3. The phased array antenna subarray framework of claim 2 wherein the control power panel comprises a second printed board, a control power supply, a control chip, a power supply chip and a second connector, wherein the control power supply is arranged on the upper surface of the second printed board, the control chip and the power supply chip are integrated on the lower surface of the second printed board and are electrically connected with the control power supply, and the second connector is arranged on the upper surface of the second printed board and corresponds to the first connector one by one.
4. A phased array antenna subarray architecture according to claim 2, wherein a plurality of said antenna elements are arranged in an array on said antenna radio frequency board, and wherein said antenna elements in adjacent areas are arranged in an orthogonal polarization or rotationally symmetrical manner.
5. The phased array antenna subarray architecture of claim 4, wherein the antenna elements are fed by doubly fed points, the geometric center point of the antenna elements is the origin, an x-y plane is constructed on the antenna elements, and the feed points are respectively arranged on an x axis and a y axis.
6. A phased array antenna sub-array architecture as claimed in claim 5, wherein the shape of the antenna elements comprises a circle or square.
7. A phased array antenna subarray architecture according to claim 1, wherein each of the phased array antenna subarrays is connected by pin or screw setback.
8. A phased array antenna subarray architecture according to claim 1, wherein the height H is 9-13 mm.
9. A phased array antenna sub-array architecture as claimed in claim 2, wherein the antenna radio frequency board is of a rigid microwave material.
10. A phased array antenna sub-array architecture as claimed in claim 3, wherein the control power panel is of FR-4 material.

Description

Phased array antenna subarray framework Technical Field The invention relates to the technical field of antennas, in particular to a phased array antenna subarray framework. Background Along with the rapid iteration of the wireless communication technology, millimeter wave communication is also being updated and upgraded at a rapid speed, the position of the millimeter wave phased array antenna technology in the millimeter wave communication field is gradually highlighted, the demand for millimeter wave phased arrays is increasing, and the demands for high performance, miniaturization, ultra-low cost and the like are increasing. Along with the improvement of the integration level of chips, the existing millimeter wave phased array antenna subarray framework is mainly a plate type phased array, gradually becomes a main framework of the millimeter wave phased array antenna according to the characteristic of high integration level, but the plate type phased array antenna has the defect that the plate type phased array antenna cannot be used in a two-dimensional expansion mode when being used in a large scale, and also has crosstalk of radio frequency signals, control signals and power signals on the plate, so that more radio frequency signals are scattered when being used in a large scale, and the system use is affected. Disclosure of Invention In view of the above-mentioned shortcomings in the prior art, the present application proposes a phased array antenna sub-array architecture for solving the above-mentioned technical problems. The application provides a phased array antenna subarray framework which comprises an antenna radio frequency plate, a structural part and a control power panel, wherein the antenna radio frequency plate is connected with the control power panel, the structural part is arranged between the antenna radio frequency plate and the control power panel, the antenna radio frequency plate is arranged on the upper surface of the structural part, the control power panel is arranged on the lower surface of the structural part, the height H of the structural part is configured to enable a physical isolation space to be formed between the antenna radio frequency plate and the control power panel, and the structural part is used as a heat dissipation channel and an electromagnetic shielding layer of the phased array antenna subarray and used for isolating radio frequency signals of the antenna radio frequency plate and control power signals of the control power panel. In the technical scheme, the antenna radio frequency board and the control power board are arranged up and down in layers and fixed through the structural part to form the standardized stacked module, thereby simplifying mThe extended assembly structure of the n subarrays realizes the isolation of the radio frequency circuit and the control power circuit through physical layering, reduces signal crosstalk between the two types of circuits from the structural source, simultaneously, the structural member accurately controls the height H, further optimizes the rationality of the stacked structure, and meets the requirements of structural compactness and anti-interference. The antenna radio frequency board comprises a first printed board, antenna units, radio frequency chips and a first connector, wherein the antenna units are arranged on the upper surface of the first printed board at equal intervals, the radio frequency chips and the first connector are arranged on the lower surface of the first printed board, and the radio frequency chips are connected with the antenna units. Through the technical means, the antenna unit, the radio frequency chip and the first connector are integrated on the same rigid microwave substrate, the integrated design of the radio frequency board in the stacked structure is optimized, the signal transmission path of the antenna unit and the radio frequency chip is shortened, loss and crosstalk in the signal transmission process are reduced, meanwhile, the structural stability of the radio frequency board in the stacked state is ensured, signal offset and crosstalk caused by structural deformation are avoided, and the integral architecture requirement of the stacked board is adapted. The control power board comprises a second printed board, a control power supply, a control chip, a power supply chip and a second connector, wherein the control power supply is arranged on the upper surface of the second printed board, the control chip and the power supply chip are integrated on the lower surface of the second printed board and are electrically connected with the control power supply, and the second connector is arranged on the upper surface of the second printed board and corresponds to the first connector one by one. By adopting the technical means, the integrated design of the upper and lower surface partition layout is adopted, the control power supply, the connector and the control/power supply chip are