CN-121983825-A - Expansion layer of non-coaxial dual polarized antenna

CN121983825ACN 121983825 ACN121983825 ACN 121983825ACN-121983825-A

Abstract

The invention discloses an expansion layer of a non-coaxial dual-polarized antenna, which comprises a non-coaxial switching connector, an antenna interface arrangement plate, a flexible limiting rubber and an active circuit interface arrangement plate, wherein the non-coaxial switching connector with the number of M and N of antenna units is sequentially arranged in corresponding limiting holes in the active circuit interface arrangement plate, one end of the non-coaxial switching connector is fixed by the active circuit interface arrangement plate, the other end of the non-coaxial switching connector is limited to move, a limited movable port of the non-coaxial switching connector is limited by covering the flexible limiting rubber, and finally the antenna interface arrangement plate is assembled above the flexible limiting rubber. The invention solves the problems of complex arrangement of dual-polarized phased antenna-lowering multi-unit interfaces, inconvenience for beam synthesis of the same polarization through an active circuit, and has the advantages of small occupied space, simple integral structure, convenient layout, low insertion loss, high passing power and high integral structural strength.

Inventors

GUI SHENG
HANG LEI
CUI LINWEI
WANG YONG

Assignees

中国船舶集团有限公司第七二三研究所

Dates

Publication Date: 20260505
Application Date: 20260113
Priority Date: 20251229

Claims (10)

1. The utility model provides an expansion layer of non-coaxial dual polarized antenna, a serial communication port, including non-coaxial switching connector, antenna interface arranges the board, flexible spacing rubber and active circuit interface arranges the board, with the non-coaxial switching connector of antenna element quantity M x N according to the corresponding spacing hole in the active circuit interface arranges the board in proper order and pack into, non-coaxial switching connector one end is fixed by active circuit interface arranges the board this moment, the other end is limited movable, limit the limited movable port of non-coaxial switching connector through covering flexible spacing rubber, at last at flexible spacing rubber top equipment antenna interface arranges the board.
2. The extension layer of a non-coaxial dual polarized antenna of claim 1, wherein the non-coaxial switching connector has 2 connectors of parallel non-coaxial SMP-J joints, and the parallel axis spacing of the two SMP-J joints is the relative distance between the axes of the interfaces of the antenna and the axes of the interfaces of the active circuit.
3. The expansion layer of the non-coaxial dual-polarized antenna according to claim 2 is characterized in that the non-coaxial switching connector comprises a shell, a first contact piece, a second contact piece, a transition flat piece, a first insulating medium and a second insulating medium are arranged in the shell, the shell is an outer structure frame of the non-coaxial switching connector, the first contact piece and the second contact piece are signal transmission feeder lines, the transition flat piece is a bonding pad matched with dielectric constants, signals can be transmitted between the first contact piece and the second contact piece in a two-way mode, and the first insulating medium and the second insulating medium are used for impedance matching and fixing the functions of the first contact piece and the second contact piece.
4. The expansion layer of the non-coaxial dual-polarized antenna according to claim 3, wherein the first contact piece and the second contact piece are welded on two sides of the transition flat piece respectively, the first contact piece and the second contact piece are parallel and not coaxial, and the peripheral sides of the first contact piece and the second contact piece are correspondingly filled with the first insulating medium and the second insulating medium respectively.
5. A spreading layer for a non-coaxial dual polarized antenna according to claim 3 wherein said active circuit is a TR element.
6. The expansion layer of the non-coaxial dual polarized antenna according to claim 5, wherein the design method of the parallel axis distance of the two connectors is that the central axes of the two rows of active interfaces of the TR component A, B are confirmed according to the central point axis of the adjacent dual polarized feed source connecting line as the central axes of the two sides of the TR component A, B, the perpendicular lines of the feed source connecting line respectively pass through the central points of the adjacent dual polarized feed sources and intersect with the two axes of the TR component A, B at the same side, the position is the center of the active interfaces of the two sides of the TR component A, B, and the relative distance between the axes of the interfaces of the antenna and the axes of the interfaces of the TR component is obtained and is used as the parallel axis distance of the two connectors of the non-coaxial switching connector.
7. The expansion layer of the non-coaxial dual-polarized antenna according to claim 3, wherein the non-coaxial switching connector is provided with a rectangular chamfer in the middle, two ends of the non-coaxial switching connector are equal-length cylinders, and the two ends of the non-coaxial switching connector are respectively corresponding to the first contact piece and the second contact piece and are interfaces of two ends of the connector.
8. The expansion layer of the non-coaxial dual polarized antenna according to claim 1, wherein the antenna interface arrangement board is provided with through holes from the non-coaxial switching connector to the antenna end according to the feed element position of the dual polarized antenna, and the aperture is larger than the diameter of the cylinder at the two ends of the non-coaxial switching connector.
9. The expansion layer of the non-coaxial dual-polarized antenna according to claim 1, wherein the active circuit interface arrangement board designs a limit hole from the non-coaxial switching connector to the active circuit end according to the interface arrangement condition after the active circuit is assembled, and the aperture is larger than the diameter of cylinders at two ends of the non-coaxial switching connector.
10. The expansion layer of the non-coaxial dual polarized antenna according to claim 9, wherein a spacing post and a structural member for assembling a countersunk hole layout of the screw are installed at a gap between the spacing hole of the active circuit interface arrangement board and the non-coaxial switching connector, so as to limit the non-coaxial switching connector.

Description

Expansion layer of non-coaxial dual polarized antenna Technical Field The invention belongs to the field of phased array antenna microwave front end systems, and particularly relates to an expansion layer of a non-coaxial dual-polarized antenna. Background In the phased array antenna microwave front end system field, as the array grids of the array antenna and the TR component are not matched, an expansion layer is required to be designed to perform grid conversion between different arrays, so that the TR component can be conveniently expanded in a modularized mode. In the traditional design, two modes are adopted, namely 1, an expansion layer of a flexible cable structural member and 2, an expansion layer of a printed board. The expansion layer adopting the flexible cable structural member has the defects of larger structural size (larger structural size of the cable), higher channel loss caused by relatively larger size, larger heat consumption caused by high cable loss, single heat dissipation measure, low heat dissipation efficiency and the like in use. The expansion layer of the printed board has the defects of poor channel isolation (shielding limitation of a multilayer board scheme), poor channel fault maintainability, high maintenance cost, small assembly tolerance of a floating structure, single heat dissipation measure, low heat dissipation efficiency and the like in use. Disclosure of Invention The invention aims to provide an expansion layer of a non-coaxial dual-polarized antenna, simplify the structure layout form of the front end of a dual-polarized phased array, and solve the defects of poor fault maintainability, high maintenance cost, small assembly tolerance due to lack of a floating structure, single heat dissipation measure, low heat dissipation efficiency and the like of the existing expansion layer channel. The technical solution for realizing the purpose of the invention is as follows: The utility model provides an expansion layer of non-coaxial dual polarized antenna, including non-coaxial switching connector, antenna interface arranges the board, flexible spacing rubber and active circuit interface arranges the board, with the non-coaxial switching connector of antenna element quantity M N according to the corresponding spacing hole packing in the active circuit interface arranges the board in proper order, non-coaxial switching connector one end is fixed by the active circuit interface arranges the board this moment, the other end is limited movable, limit the limited movable port of non-coaxial switching connector through covering flexible spacing rubber, at last at the flexible spacing rubber top equipment antenna interface arranges the board. Further, the non-coaxial switching connector is provided with a connector of2 parallel non-coaxial SMP-J joints, and the parallel axis distance of the two SMP-J joints is the relative distance between the axes of the interfaces of the antenna and the axes of the interfaces of the active circuit. The non-coaxial switching connector comprises a shell, wherein a first contact, a second contact, a transition flat piece, a first insulating medium and a second insulating medium are arranged in the shell, the shell is an outer structure frame of the non-coaxial switching connector, the first contact and the second contact are signal transmission feeder lines, the transition flat piece is a bonding pad matched with dielectric constants, signals can be transmitted between the first contact and the second contact in a bidirectional mode, and the first insulating medium and the second insulating medium are used for matching impedance and fixing the first contact and the second contact. Further, the first contact piece and the second contact piece are welded on two sides of the transition flat piece respectively, the first contact piece and the second contact piece are parallel and not coaxial, and the peripheral sides of the first contact piece and the second contact piece are correspondingly filled with a first insulating medium and a second insulating medium respectively. Further, the active circuit is a TR element. Further, the design method of the parallel axis distance of the two connectors comprises the steps of confirming the central axes of two rows of active interfaces of the TR component A, B according to the fact that the central point axis of the dual-polarized adjacent feed source connecting line is the central axis of the two sides of the TR component A, B, respectively passing through the central points of the dual-polarized adjacent feed source connecting line, and making the perpendicular line of the feed source connecting line to intersect with the two sides of the TR component A, B on the same side, wherein the position is the center of the active interfaces on the two sides of the TR component A, B, and the relative distance between the axes of the interfaces of the antenna and the axes of the interfaces of the TR component is obt