Integral high-temperature resistant sealing wave-transparent antenna cover

Abstract

The invention discloses an integral high-temperature resistant sealing wave-transparent antenna cover. The integral high-temperature resistant sealing wave-transparent antenna cover comprises a coverbody and a cover plate, wherein a connection cylinder is vertically arranged below the cover body and is connected with airborne equipment, a lower part of the cover body and a connection cylinder arefixedly connected by an annular slope plate, a plurality of exhaust hole groups are formed in the annular slope plate, an exhaust hole shielding assembly is connected to the connection cylinder and is arranged above the exhaust hole groups, a cover body rotation assembly is arranged on the cover plate, and the cover body is fabricated by doping polyimide and quartz glass fiber according to a massratio being (1.5-2.5):(2.5-3.5). Compared with the prior art, the integral high-temperature resistant sealing wave-transparent antenna cover provided by the invention has relatively good aerodynamicperformance, salt mist and rainwater invasion is prevented, the difference between integral air pressure and external air pressure also can be balanced, radar check and maintenance can be facilitated,the integral high-temperature resistant sealing wave-transparent antenna cover has excellent thermal impact-resistant performance, high-temperature resistant performance, mechanical strength, appropriate elastic modulus and particle cloud invasion resistant capability, and the wide-screen wave transparency of the antenna cover is achieved.

Description

technical field [0001] The invention relates to the technical field of airborne radar, in particular to an integral heat-resistant and sealed wave-transparent radome. Background technique [0002] The radome is located on the head of the aircraft, mostly conical or hemispherical, and has multiple functions such as flow diversion, heat protection, wave penetration, and load bearing; the radome is an important barrier to protect information transmission equipment, and has a great impact on the electrical performance and The mechanical properties put forward higher requirements, and the radome should have good electrical insulation and wide-screen electromagnetic wave transmission performance, as well as excellent heat resistance, mechanical properties and environmental resistance. The performance of the radome will directly affect the safety performance of the aircraft and the normal working performance of the radar. The radome is a very critical part. [0003] When the aircr...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides an integral high-temperature-resistant sealed wave-transparent radome to solve the problem of having good mechanical properties, heat-resistant performance and broadband wave-transparency and maintaining low dielectric properties in a wide range of temperature and frequency variations. Constant, low power loss requirements, poor overall rigidity of the radome, prone to resonance, easy water seepage at the joint, inconvenient maintenance, poor natural ventilation, and frequent rain leakage, which affects the performance of the radar antenna

Images