A Narrow Bandpass Balanced Filter with Back-to-Back Structure

摘要：

A narrow bandpass balanced filter with good commonmode suppression using back to back structure is designed in this paper. Under the differential- or common-mode excitation, the proposed configuration is separated as a bandpass filter or a bandstop characteristic, respectively. Resonators are coupled with each other through four apertures which are cut away from the common ground. One open stub is added in the middle to construct different electric lengths so as to suppress the common-mode response. Finally, a narrow bandpass balanced filter is designed at the center frequency of 1 GHz and 3-dB FBW of 10％ with a good common-mode suppression more than 30 dB.

关键词： Balanced filter aperture coupling common-mode suppression a quarter wavelength resonator

作者: Meng Li Hyunwook Lee Joung-Geun Park Jong-Chul Lee

作者单位: Department of Wireless Communications Engineering Kwangwoon University Seoul, Korea

会议类型: 国际会议

会议名称: 2012 5th Global Symposium on Millimeter-Waves(2012年第五届全球毫米波会议 GSMM 2012)

会议地点: 哈尔滨

会议语种:英文

页码: 295-298

在线出版日期: 2012-05-27（万方平台首次上网日期，不代表论文的发表时间）