Varactor-tuned microstrip bandpass filters with different passband characteristics

Two novel types of tunable bandpass filters are introduced in this study. The first type is composed of varactor-loaded parallel-coupled lines and short-circuited stubs, which allows for the lower passband edge and two transmission zeros around the lower passband skirt to be reconfigured separately...

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Veröffentlicht in:	IET microwaves, antennas & propagation antennas & propagation, 2014-04, Vol.8 (6), p.415-422
Hauptverfasser:	Ni, Jia, Hong, Jiasheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandpass filters band‐pass filters Boards Bonding bonding processes Circuit boards Circuit properties circuit tuning coupled circuits Electric, optical and optoelectronic circuits Electronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology Flexibility Frequency filters LCP bonded multilayer PCB technology Liquid crystal polymers low‐pass filters microstrip filters Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Multilayers passband characteristics poles and zeros Printed circuits short‐circuited stub transmission zero tunable lowpass filter varactors varactor‐loaded parallel‐coupled line varactor‐tuned microstrip bandpass filter
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