Design of an Economical Compact Coaxial cavity Combline Filter for 3G TD Base station
The cross coupled microwave filter is widely nsed in the communication sub system .The synthesis of the cross coupled filter is from prescribed transmission zeros and return loss till the attainment of the coupling matrix of each cavity . An compact narrowband combline high rejection filter with cross coupled is presented. A configurator! Using identical resonator post with capacitance-loading is introduced. Tested results show that with order-8 filter center frequency at 2017.5MHz, return loss lower than-25dB can be achieved over a relative bandwidth of 1.29％. Sample filter has been fabricated and tested result confirmed the theory results. In this paper, tested results will be given to illustratethe concept.
coupling coefficient combline filter CST Coupling Matrix Synthesis
GuangMing Zheng Weigan Lin
School of Electronics Engineering, University of Electronic Science and Technology of China, Jianshe North Avenue, Chengdu, 610054 China
国际会议
重庆
英文
520-524
2011-01-21（万方平台首次上网日期，不代表论文的发表时间）