Tunable and electronically steerable microstrip antenna

K. A. Jose; Vijay K. Varadan; Vasundara V. Varadan

doi:10.1117/12.354269

20 July 1999 Tunable and electronically steerable microstrip antenna

K. A. Jose, Vijay K. Varadan, Vasundara V. Varadan

Proceedings Volume 3673, Smart Structures and Materials 1999: Smart Electronics and MEMS; (1999) https://doi.org/10.1117/12.354269
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

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.

Citation Download Citation

K. A. Jose, Vijay K. Varadan, and Vasundara V. Varadan "Tunable and electronically steerable microstrip antenna", Proc. SPIE 3673, Smart Structures and Materials 1999: Smart Electronics and MEMS, (20 July 1999); https://doi.org/10.1117/12.354269

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