超导滤波器、超导卫星接收机和超导气象雷达的研究进展

近年来，国际上高温超导微波器件的应用取得了重大突破，国内的高温超导微波应用也取得了重要进展．文章回顾了中国科学院物理研究所在探索具有高性能的高温超导滤波器以及同一芯片上不同类型超导滤波器的集成等方面的一些进展，其中部分滤波器分别在相对带宽（优于0．25％）、返回损耗（优于-22．5dB）、带边陡度（例如大于140dB／MHz）、指定频段的抑制（超过110dB）等方面显示了优异的性能．对于在国内进行的首次高温超导滤波器空间环境模拟试验、首次使用高温超导滤波器子系统的卫星接收机前端地面试验和首次使用高温超导微波子系统的气象雷达的现场试验，文章也做了介绍．

Recent Developments of high temperature superconducting microwave filters, satellite-to ground receivers, and meteorological radar

Progress in the application of high temperature superconducting (HTS) microwave devices and subsystems have been achieved worldwide as well as in China. Recent developments in high performance HTS filters at the Institute of Physics, Chinese Academy of Sciences will be reviewed; among these filters some showed excellent specifications in, for example, fractional bandwidth (narrower than 0.25%), return loss (less than -22.5dB), skirt slope (greater than 140 dB/MHz), and out-of-band rejection within a certain frequency band (deeper than 110dB). Mechanical qualification tests for satellite applications of HTS filters, satellite-to-ground microwave receivers with a HTS front end, and field tracking of meteorological radar with a HTS subsystem will also be described, all the first of their kind in China.