A Reconfigurable Coplanar Waveguide Bowtie Antenna Using an Integrated Ferroelectric Thin-Film Varactor

K. C. Pan; D. Brown; G. Subramanyam; R. Penno; H. Jiang; C. H. Zhang; M. Patterson; D. Kuhl; K. Leedy; C. Cerny

doi:10.1155/2012/249019

International Journal of Antennas and Propagation (Jan 2012)

A Reconfigurable Coplanar Waveguide Bowtie Antenna Using an Integrated Ferroelectric Thin-Film Varactor

K. C. Pan,
D. Brown,
G. Subramanyam,
R. Penno,
H. Jiang,
C. H. Zhang,
M. Patterson,
D. Kuhl,
K. Leedy,
C. Cerny

Affiliations

K. C. Pan: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
D. Brown: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
G. Subramanyam: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
R. Penno: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
H. Jiang: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
C. H. Zhang: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
M. Patterson: Department of Electrical and Computer Engineering, University of Dayton, 300 College Park, Dayton, OH 45469, USA
D. Kuhl: Air Force Research Lab, Sensors Directorate, WPAFB, Dayton, OH 45432, USA
K. Leedy: Air Force Research Lab, Sensors Directorate, WPAFB, Dayton, OH 45432, USA
C. Cerny: Air Force Research Lab, Sensors Directorate, WPAFB, Dayton, OH 45432, USA

DOI: https://doi.org/10.1155/2012/249019
Journal volume & issue: Vol. 2012

Abstract

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A novel printed antenna with a frequency reconfigurable feed network is presented. The antenna consists of a bowtie structure patch radiating element in the inner space of an annulus that is on a nongrounded substrate with a ferroelectric (FE) Barium Strontium Titanate (BST) thin film. The bowtie patch is fed by a coplanar waveguide (CPW) transmission line that also includes a CPW-based BST shunt varactor. Reconfiguration of the compact 8 mm × 8 mm system has been demonstrated by shifting the antenna system’s operating frequency 500 MHz in the 7–9 GHz band by applying a DC voltage bias.

Published in International Journal of Antennas and Propagation

ISSN: 1687-5869 (Print); 1687-5877 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Social Sciences: Transportation and communications: Cellular telephone services industry. Wireless telephone industry
Website: https://www.hindawi.com/journals/ijap/

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