CN-224232931-U - Curved surface phased array antenna carrier plate

CN224232931UCN 224232931 UCN224232931 UCN 224232931UCN-224232931-U

Abstract

The utility model discloses a curved surface phased array antenna carrier plate which comprises a carrier plate upper cover plate, a button wool connecting piece and a carrier plate lower cover plate, wherein the upper surface of the carrier plate upper cover plate is a curved surface, a curved surface receiving and transmitting antenna surface is welded on the upper surface and is shaped by the antenna surface, the curved surface and a mounting platform keep the same curvature, the carrier plate lower cover plate is mounted on the lower surface of the carrier plate upper cover plate, an antenna TR assembly is mounted below the carrier plate lower cover plate, a plurality of button wool mounting holes are formed in the middle of the carrier plate upper cover plate and the carrier plate lower cover plate, the button wool connecting piece penetrates through the button wool mounting holes mounted between the carrier plate upper cover plate and the carrier plate lower cover plate to realize antenna cascading, and mounting flanges are arranged on the periphery of the carrier plate upper cover plate and are used for mounting the carrier plate upper cover plate on the carrier surface. The utility model realizes cascade connection of the Ka phased array satellite communication antenna surface and the active component, meets the feeding use requirement of the Ka phased array satellite communication antenna, and has high integral structural strength, strong corrosion resistance and high electrical connection performance.

Inventors

DONG GAOBIN
FU ZUOHONG
Cheng Chiqing
GU LEI
YANG XIAODONG
LIU JIANHENG
WANG YANYAN

Assignees

南京熊猫汉达科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (10)

1. The curved surface phased array antenna carrier plate is characterized by comprising a carrier plate upper cover plate (1), a button wool connecting piece (2) and a carrier plate lower cover plate (3); The antenna cascade structure comprises a carrier plate upper cover plate (1), an antenna TR component, a carrier plate lower cover plate (3), a plurality of hair button mounting holes (4), a hair button connecting piece (2) and a mounting flange (5), wherein the upper surface of the carrier plate upper cover plate (1) is a curved surface, a curved surface receiving and sending antenna surface is welded on the upper surface, the curved surface is shaped by the antenna surface, the same curvature as that of a mounting platform is kept, the carrier plate lower cover plate (3) is mounted on the lower surface of the carrier plate upper cover plate (1), the antenna TR component is mounted below the carrier plate lower cover plate (3), the middle parts of the carrier plate upper cover plate (1) and the carrier plate lower cover plate (3) are provided with the hair button mounting holes (4), the hair button connecting piece (2) is mounted in the hair button mounting holes (4) between the carrier plate upper cover plate (1) and the carrier plate lower cover plate (3) in a penetrating mode, the periphery of the carrier plate upper cover plate (1) is provided with the mounting flange (5).
2. The curved phased array antenna carrier of claim 1, wherein the flatness of the lower surfaces of the carrier upper cover plate (1) and the carrier lower cover plate (3) is not less than 0.05 mm, so that the button hair connector (2) is fully contacted with pins on the surface of the antenna TR assembly.
3. The curved surface phased array antenna carrier plate according to claim 1, wherein an upward flanging is arranged around the upper cover plate (1) of the carrier plate and used for wrapping the curved surface receiving and transmitting antenna surface, the flanging has a dimensional tolerance of +0.05mm, and the flanging is matched with a pin to position the curved surface receiving and transmitting antenna surface, so that pins of the curved surface receiving and transmitting antenna surface are tightly connected with a button connecting piece (2) in a button mounting hole (4), and smooth communication is ensured.
4. The curved phased array antenna carrier of claim 1, wherein the upper surface of the carrier upper cover plate (1) is gold plated for soldering the carrier upper cover plate (1) to the antenna surface and reducing contact resistance by a gold layer.
5. The curved phased array antenna carrier plate according to claim 1, wherein the upper surface of the carrier plate upper cover plate (1) is designed with ventilation holes (6), and when the curved transceiver antenna surface is welded to the surface of the carrier plate upper cover plate (1), the welding surface gas is exhausted.
6. The curved phased array antenna carrier of claim 1, wherein a cross groove M2 countersunk screw is used between the carrier top cover plate (1) and the curved transceiver antenna face.
7. The curved surface phased array antenna carrier plate according to claim 1, wherein the carrier plate upper cover plate (1) is formed by milling 6061 aluminum ingots, and the surface is subjected to natural-color conductive oxidation treatment.
8. The curved surface phased array antenna carrier plate according to claim 1, wherein hollowed weight reduction grooves (7) are formed in the inner cavity of the carrier plate upper cover plate (1) and the mounting flange (5) and are used for reducing the weight of the carrier plate upper cover plate (1) and realizing the weight reduction of the antenna.
9. The curved surface phased array antenna carrier plate according to claim 1, wherein the hair button connectors (2) are composed of hair buttons (2-1) at two ends and a brass connector (2-2) in the middle, and each hair button connector (2) is different in length due to the fact that the carrier plate upper cover plate (1) is of a curved surface design and the hair button connectors (2) are limited in elasticity, and the brass connectors (2-2) with different lengths are designed to match different mounting positions and different length requirements of the hair button connectors (2); The hair button (2-1) is formed by knitting gold wires, yarn joints and scattered yarns are not arranged at the two ends within the range of 0.6mm, the appearance is a cylinder, the heads of the two ends are full, the holes are not arranged, the overall density is uniform, the diameter is 0.38mm, the overall length is 3mm, the end face is a plane, the compressibility is 15% of the length direction, and the hair button connector (2) is tightly connected with a curved surface receiving and transmitting antenna face and an antenna TR assembly through pressing the hair button (2-1), so that radio frequency signals are not interrupted.
10. The curved phased array antenna carrier plate according to claim 1, wherein the upright (8) is designed at the installation position of the inner button connector (2) of the carrier plate upper cover plate (1) and is used for ensuring the strength of the button connector (2) and supporting and protecting the button connector (2) to prevent the button connector (2) from deforming and crushing.

Description

Curved surface phased array antenna carrier plate Technical Field The utility model relates to the technical field of Ka phased array satellite communication antennas, in particular to a curved surface phased array antenna carrier plate. Background Today, where communication technology is increasingly developed, higher demands are placed on the stealth performance and communication capabilities of phased array antennas. In order to reduce the RCS characteristics of the antenna surface, certain measures must be taken to conform the antenna surface to the aircraft skin and at the same time ensure that the radio frequency signals of the phased array antenna are transmitted smoothly between the antenna surface and the TR assembly. At present, some phased array antenna structure schemes with low RCS also appear in China, such as the scheme of coating wave absorbing materials on the surface of an antenna or using special antenna covers to reduce the RCS characteristics of the antenna, but the antenna has limited effect, and is difficult to meet the requirements of severe environmental indexes, limited envelope sizes and the like, so that the antenna has certain limitation. Compared with other phased array antenna forms, the phased array satellite communication antenna in the curved surface carrier plate form is not available in China at present. Disclosure of utility model The utility model aims to provide the curved surface phased array antenna carrier plate which can meet the cascading of an antenna surface and an active component in the use process of an antenna, meet the use requirement of antenna feed, reduce the envelope size of the antenna, realize the weight reduction of the antenna and ensure the low RCS characteristic of the surface of the antenna. The technical scheme for realizing the purpose of the utility model is that the curved surface phased array antenna carrier plate comprises a carrier plate upper cover plate, a button connector and a carrier plate lower cover plate; The antenna is characterized in that the upper surface of the upper cover plate of the carrier plate is a curved surface, a curved surface receiving and transmitting antenna surface is welded on the upper surface, the curved surface is shaped by the antenna surface, the same curvature is kept with the mounting platform, the lower cover plate of the carrier plate is mounted on the lower surface of the upper cover plate of the carrier plate, an antenna TR assembly is mounted below the lower cover plate of the carrier plate, a plurality of button mounting holes are formed in the middle of the upper cover plate of the carrier plate and the lower cover plate of the carrier plate, button connecting pieces penetrate through button mounting holes between the upper cover plate of the carrier plate and the lower cover plate of the carrier plate, antenna cascading is achieved, mounting flanges are arranged around the upper cover plate of the carrier plate, and the upper cover plate of the carrier plate is mounted on the surface of the carrier through the mounting flanges. Further, the flatness of the lower surfaces of the upper carrier cover plate and the lower carrier cover plate is not lower than 0.05 mm, so that the button connector is fully contacted with pins on the surface of the antenna TR assembly. Further, the periphery of the upper cover plate of the carrier plate is provided with an upward flanging for wrapping the curved surface receiving and transmitting antenna surface, the dimensional tolerance of the flanging is +0.05mm, the flanging is matched with a pin, the position of the curved surface receiving and transmitting antenna surface is positioned, pins of the curved surface receiving and transmitting antenna surface are tightly connected with the button connecting piece in the button mounting hole, and smooth communication is ensured. Further, the upper surface of the upper cover plate of the carrier plate is plated with gold and is used for welding the upper cover plate of the carrier plate with the antenna surface, and the contact resistance is reduced through a gold layer. Further, the upper surface of the upper cover plate of the carrier plate is provided with ventilation holes, and when the curved surface receiving and transmitting antenna surface is welded to the surface of the upper cover plate of the carrier plate, the gas of the welding surface is exhausted. Further, a cross groove M2 countersunk head screw is used for locking between the upper cover plate of the carrier plate and the curved surface receiving and transmitting antenna surface. Further, the upper cover plate of the carrier plate is formed by milling 6061 aluminum ingots, and the surface of the upper cover plate is subjected to natural-color conductive oxidation treatment. Further, hollowed weight reduction grooves are formed in the inner cavity of the upper cover plate of the carrier plate and the mounting flange and used for reducing weight of the upp