A fully tunable two‐pole bandpass filter using the resonator with asymmetrical capacitances

A fully tunable second‐order bandpass filter based on novel resonator is proposed. The resonating frequency and the coupling coefficient between the resonators can be controlled by two varactor diodes. Theoretical expressions have been derived for the coupling coefficient. Four types of filter respo...

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Veröffentlicht in:	Microwave and optical technology letters 2019-12, Vol.61 (12), p.2843-2846
Hauptverfasser:	Tian, Dengyao, Feng, Quanyuan, Xiang, Qianyin
Format:	Artikel
Sprache:	eng
Schlagworte:	asymmetrical capacitances bandpass filter Bandpass filters Bandwidths Coupling coefficients Diodes fully tunable Resonators Varactor diodes
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