NDLI: Power handling of high-Q evanescent-mode tunable filter with integrated piezoelectric actuators

Content Provider	IEEE Xplore Digital Library
Author	Chen, Kenle Sigmarsson, Hjalti H. Peroulis, Dimitrios
Copyright Year	2012
Description	Author affiliation: School of Electrical and Computer Engineering, University of Oklahoma, Norman, 73019-0390, USA (Sigmarsson, Hjalti H.) \|\| School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47906, USA (Chen, Kenle; Peroulis, Dimitrios)
Abstract	This paper investigates for the first time the power handling versus tuning ratio trade-off for high-quality-factor (high-Q) evanescent-mode tunable cavity bandpass filters with piezoelectric actuators. A non-linear circuit model is proposed to prescribe the high-power effects on the filter performance. A new parameter, distortion ratio (DR), is utilized to quantify the non-linear frequency-response distortion induced by unwanted displacements of the filter's piezoelectric actuators due to high-power RF signals. Both experimental and theoretical results yield a nearly linear relationship between the filter tuning ratio and the input power (in dBm). The presented filter can successfully handle a 1-W power while being tuned from 1.7–2.8 GHz (1.65 ∶ 1 tuning ratio) with less than 10% distortion ratio. For a 10-W operation, the tuning range is reduced to 2.2–2.8 GHz (1.28 ∶ 1) with the same distortion ratio.
Starting Page	1
Ending Page	3
File Size	1041854
Page Count	3
File Format	PDF
ISBN	9781467310857
ISSN	0149645X
e-ISBN	9781467310888
e-ISBN	9781467310864
DOI	10.1109/MWSYM.2012.6259720
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-17
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tuning Cavity resonators Integrated circuit modeling Solid modeling Power measurement Nonlinear distortion Distortion measurement tunable Evanescent-mode cavity filter high power piezoelectric quality factor
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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