无线电工程2012，Vol.42Issue(7)：44-45,58,3.
一种L波段电调微带滤波器的设计
Design of a L-band Electronically Tunable Microstrip Filter
赵智兵 1毛光军 1刘长明1
作者信息
- 1. 国营第七一三厂研究所,江西九江332005
- 折叠
摘要
Abstract
Electrically tunable preselectors are key elements in modern radio monitoring receivers. Adding a narrowband preselector in the RF front end may improve the IIP2 as well as the anti - jamming capability of the system. The paper introduces the design of electronically tunable bandpass filter based on mierostrip combline resonator loaded with variable capacitors, and analyzes the theoretical principles of the resonator. The co-simulation based on circuit and EM analysis is accomplished by ADS. The test result shows that the filter has a tuning range from 1.5 GHz to 2. 1 GHz with a low insertion loss （ less than 4 dB across the entire tuning range）. Finally, the paper discusses how to further improve the performance of the filter.关键词
预选器/变容二极管/可调滤波器/微带线Key words
preselector/varaetor diode/tunable filter/microstrip分类
信息技术与安全科学引用本文复制引用
赵智兵,毛光军,刘长明..一种L波段电调微带滤波器的设计[J].无线电工程,2012,42(7):44-45,58,3.
