Reconfigurable bandstop filter with tunable center frequency and bandwidth using piezoelectric transducer | Zendy

Jun Sungyun | Zendy; Chang Kai | Zendy

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Reconfigurable bandstop filter with tunable center frequency and bandwidth using piezoelectric transducer

Author(s) -

Jun Sungyun,

Chang Kai

Publication year - 2013

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.27894

Subject(s) - center frequency , bandwidth (computing) , stub (electronics) , band stop filter , microstrip , transducer , dielectric , microwave , wavelength , piezoelectricity , materials science , optoelectronics , electrical engineering , band pass filter , low pass filter , engineering , telecommunications

A reconfigurable bandstop filter with tunable center frequency and bandwidth using a piezoelectric transducer (PET) is presented. The proposed reconfigurable bandstrop filter consists of a PET and two quarter‐wavelength open‐stub microstrip lines. Tuning center frequency and bandwidth are achieved by varying the dielectric constants of a quarter‐wavelength open‐stub microstrip line using a controlled dielectric perturber under a PET in two quarter‐wavelength open‐stub microstrip lines. The proposed filter has a 8.7% tuning range at center freuqnecy from 4.62 to 5.06 GHz and 29% tuning range of bandwidth (>25 dB) from 990 to 1280 MHz with varied DC voltages. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2670–2672, 2013

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