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1296 IEEE ELECTRON DEVICE LETTERS, VOL. 30, NO. 12, DECEMBER 2009 A Pb(Zr0.55Ti0.45)O3-Transduced Fully Differential
 

Summary: 1296 IEEE ELECTRON DEVICE LETTERS, VOL. 30, NO. 12, DECEMBER 2009
A Pb(Zr0.55Ti0.45)O3-Transduced Fully Differential
Mechanically Coupled Frequency Agile Filter
Hengky Chandrahalim, Student Member, IEEE, Sunil A. Bhave, Member, IEEE,
Ronald G. Polcawich, Member, IEEE, Jeff Pulskamp, and Roger Kaul
Abstract--This letter reports on the performances of a
frequency-tunable lead-zirconate-titanate-transduced fully differ-
ential mechanically coupled high-overtone width-extensional filter.
The demonstrated electric field tuning provides channel agility
and bandwidth adjustability for the incorporation of analog
spectral processors in modern radio receiver architectures. We
designed and experimentally characterized the higher overtone
frequency response of a fully differential width-extensional filter.
The filter demonstrates a center frequency (fC ) tuning range of
7 MHz at 260 MHz and an adjustable bandwidth from 3 to
6.3 MHz while maintaining a maximum frequency shift due to
hysteresis effects below 0.14% and a stopband rejection floor of
-60 dB.
Index Terms--Differential, filters, piezoelectric, RF MEMS,
voltage tuning.

  

Source: Afshari, Ehsan - School of Electrical and Computer Engineering, Cornell University

 

Collections: Engineering