摘要
利用三维电磁场仿真软件计算工作频率为8.3~8.6GHz的低温极化器初始尺寸,并通过热分析软件提取低温环境下极化器产生的结构变形量,进而采用结构参数补偿的方式,确定低温隔板极化器结构尺寸。测试结果表明,研制的低温极化器在8.3~8.6GHz频段内,实现了线圆极化信号间的极低噪声转换。
This paper used three - dimensional electromagnetic simulation software to calculate the initial size of cryogenic 8. 3 - 8.6GHz septum polarizer and its structure deformation at low temperature by thermal analysis software. The size of cryogenic septum polarizer was compensated and confirmed. The test results show that the cryogenic septum polarizer complete the transformation between the linear polarization signals and the circular polarization signals with an extremely low noise temperature at 8.3 - 8.6GHz.
出处
《低温与超导》
CAS
北大核心
2014年第5期8-11,21,共5页
Cryogenics and Superconductivity
基金
国家自然科学基金(11078003)资助
关键词
低温隔板极化器
低噪声温度
端口隔离度
轴比
Cryogenie septum polarizer, Low noise temperature, Port isolation, Axial ratio
