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Proceedings Paper

Tunable and electronically steerable microstrip antenna
Author(s): K. A. Jose; Vijay K. Varadan; Vasundara V. Varadan
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Paper Abstract

The design and experimental investigation on electronically tunable microstrip antenna is presented in this paper. These observations have been made as a first step towards the realization of an electronically tunable microstrip antenna taking advantage of the voltage tunable dielectric substrate. It is already established that the change in dielectric constant of Barium Strontium Titanate (BST) substrate material is more than 50% depending on the stoichiometric composition of BST and the biasing voltage. Microstrip patch antennas were printed on the tunable substrate and radiation performance was studied for different bias conditions and frequency tuning has been demonstrated. The operating frequency of the antenna is found to be changed by varying the applied dc voltage. Electronic steerability of the antenna array is possible by incorporating the BST phase shifters in antenna configuration.

Paper Details

Date Published: 20 July 1999
PDF: 6 pages
Proc. SPIE 3673, Smart Structures and Materials 1999: Smart Electronics and MEMS, (20 July 1999); doi: 10.1117/12.354269
Show Author Affiliations
K. A. Jose, The Pennsylvania State Univ. (United States)
Vijay K. Varadan, The Pennsylvania State Univ. (United States)
Vasundara V. Varadan, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 3673:
Smart Structures and Materials 1999: Smart Electronics and MEMS
Vijay K. Varadan, Editor(s)

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