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A Frequency Agile Miniaturized Antenna Utilizing Ferroelectric Barium-Strontium-Titanate Capacitors

Published online by Cambridge University Press:  14 October 2014

S. Alzahrani ,
T.S Kalkur  and
H. Song
S. Alzahrani
Affiliation:
Department of Electrical and Computer Engineering, University of Colorado, Colorado Springs, CO 80918
T.S Kalkur
Affiliation:
Department of Electrical and Computer Engineering, University of Colorado, Colorado Springs, CO 80918
H. Song
Affiliation:
Department of Electrical and Computer Engineering, University of Colorado, Colorado Springs, CO 80918
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Abstract

A miniaturized frequency agile multi-band antenna based on BST varactors is presented. The radiation patterns and frequency responses of this antenna are characterized. The measured tunability was 2.1%, 9.1%, and 6.6% for the first, second, and third band respectively. The lowest resonant frequency corresponds to an antenna size of 0.076λg × 0.076λg. The size reduction of the antenna was achieved by employing the novel antenna structure and the thin film BST varactors. The measured -3 dB bandwidth was between 3.1% and 7.4% for all bands.

Keywords

ferroelectricmicroelectronicsthin film
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1691: Symposium BB – Materials for End-of-Roadmap Devices in Logic, Power and Memory , 2014 , mrss14-1691-bb11-35
Copyright
Copyright © Materials Research Society 2014 

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References

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