A π-type Isolation Network for Improvement of Matching and Isolation in Reconfigurable Multifunctional Bandpass Filter

Xu Zhu, Tao Yang, Pei Ling Chi, Ruimin Xu

研究成果: Conference contribution同行評審

摘要

In this paper, a method for improving the output impedance match and isolation between output ports of the reconfigurable single-to-balanced (SE-BAL), power-dividing (PD) and single-ended (SE) multifunctional filter is presented. By adding the varactor-tuned π-type isolation network to the outputs of the tunable multifunctional filter, both the matching and isolation at the output ports are improved to a large degree over the full tuning range. Compared to the original standalone multifunctional filter, the measured output return loss and isolation of the filter with π-type isolation network are improved by more than 10 dB at center frequency of each tuning state under the SE-BAL and PD filtering mode, while the measured output return loss and isolation for the SE filtering mode still keeps better than -20 dB in the whole tuning range.

原文English
主出版物標題2019 49th European Microwave Conference, EuMC 2019
發行者Institute of Electrical and Electronics Engineers Inc.
頁面125-128
頁數4
ISBN(電子)9782874870552
DOIs
出版狀態Published - 10月 2019
事件49th European Microwave Conference, EuMC 2019 - Paris, France
持續時間: 1 10月 20193 10月 2019

出版系列

名字2019 49th European Microwave Conference, EuMC 2019

Conference

Conference49th European Microwave Conference, EuMC 2019
國家/地區France
城市Paris
期間1/10/193/10/19

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