Novel 1.5-1.9 GHz Tunable Single-to-Balanced Bandpass Filter With Constant Bandwidth

doi:10.1109/LMWC.2016.2623251

Title:	Novel 1.5-1.9 GHz Tunable Single-to-Balanced Bandpass Filter With Constant Bandwidth
Authors:	Chi, Pei-Ling Yang, Tao 電機工程學系 Department of Electrical and Computer Engineering
Keywords:	Constant absolute bandwidth;differential outputs;tunable single-to-balanced filter
Issue Date:	Dec-2016
Abstract:	A novel tunable single-to-balanced bandpass filter is proposed in this letter. It consists of pairs of stepped-impedance resonators (SIRs), which are connected by back-to-back varactors in between. Based on such a simple structure, the filter can cover from 1.5 GHz to 1.9 GHz with constant absolute bandwidth, and exhibit differential outputs in each tuning state. The amplitude and phase imbalances between each differential outputs are less than 0.7 dB and 3 degrees, respectively, in the passband of each tuning state.
URI:	http://dx.doi.org/10.1109/LMWC.2016.2623251 http://hdl.handle.net/11536/132997
ISSN:	1531-1309
DOI:	10.1109/LMWC.2016.2623251
Journal:	IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Volume:	26
Issue:	12
Begin Page:	972
End Page:	974
Appears in Collections:	Articles