一种车载卫星地球站QV频段天线低温槽的实现方法
By using a cryogenic tank structure and liquid nitrogen refrigerant cooling technology, the problems of high noise and temperature and low G/T value of QV band antennas of vehicle-mounted satellite earth stations were solved, achieving system noise and temperature reduction and performance improvement, meeting the needs of deep space exploration and high-speed communication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CANGYU TIANJI (BEIJING) INFORMATION & COMM TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-17
AI Technical Summary
Vehicle-mounted satellite earth station QV band antennas have high noise and temperature and low G/T values at high frequencies, making it difficult to meet the needs of deep space exploration and high-speed satellite communication. In particular, small-aperture antennas have unstable performance under mobility requirements.
It adopts a cryogenic tank structure, which uses liquid nitrogen refrigerant for cooling. Combined with temperature sensors and a pressurizer to control the refrigerant injection, a sealed cavity is formed to reduce the conductor loss of the feed and amplifier. Rigid welding and corrugated structure design are used to cope with vehicle vibration and ensure stability.
The system noise temperature is significantly reduced to below 50K, the G/T value is increased to above 1.2 dB/K, the weak signal reception sensitivity is increased by 3 times, meeting the requirements of deep space exploration and high-speed communication, and the performance remains stable in the vehicle vibration environment.
Smart Images
Figure CN120432849B_ABST