A 40-GHz MMIC SPDT bandpass filter integrated switch

Shih Fong Chao*, Che Chung Kuo, Zuo-Min Tsai , Huei Wang

*Corresponding author for this work

研究成果: Conference contribution同行評審

6 引文 斯高帕斯(Scopus)

摘要

Stepped-impedance resonators (SIR) with HEMTs loaded at one end are used to develop a 40 GHz MMIC SPDT filter integrated switch. The HEMTs are used to switch the resonant frequencies of the loaded stepped-impedance resonators. At on-state, the resonators resonate at the same center frequency to pass the RF signal. With the coupled-resonator filter theory, the filter response could be easily designed and synthesized. At off-state, the resonant frequencies of the resonators between input and output ports are staggered to block the RF signal. In this paper, a compact 40-GHz MMIC single-pole-double-throw (SPDT) switch with integrated a third-order bandpass filter is demonstrated. At thru-port, a bandpass filter response with measured insertion loss of 3.1 dB at the center frequency is obtained. At the isolated-port, an isolation of higher than 30 dB is also obtained. The proposed circuit successfully combines an SPDT switch and a bandpass filter into a single circuit component, and makes a high level of MMIC integration become possible.

原文English
主出版物標題2007 IEEE MTT-S International Microwave Symposium Digest
頁面483-486
頁數4
DOIs
出版狀態Published - 2 十月 2007
事件2007 IEEE MTT-S International Microwave Symposium, IMS 2007 - Honolulu, HI, United States
持續時間: 3 六月 20078 六月 2007

出版系列

名字IEEE MTT-S International Microwave Symposium Digest
ISSN(列印)0149-645X

Conference

Conference2007 IEEE MTT-S International Microwave Symposium, IMS 2007
國家United States
城市Honolulu, HI
期間3/06/078/06/07

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