Magnetic tuning of a microstrip patch antenna fabricated on a ferrite film

Author

Rainville, P.J. ; Harackiewicz, F.J.

Author_Institution

Rome Lab., Hanscom AFB, MA, USA

Volume

2

Issue

12

fYear

1992

Firstpage

483

Lastpage

485

Abstract

A square, single-feed patch, fabricated on a ferrite film, that produced orthogonally polarized, well-formed radiation patterns is described. The application of a small in-plane magnetic field tuned the frequency, and hence phase, of one polarization only. Prior work on patch antennas fabricated on bulk ferrite substrates demonstrated magnetic tuning, but only linear polarization was obtained. The results indicate that (1) thin ferrite films, which are monolithically integrable, may be useful for a magnetically tunable antenna, and (2) the radiation polarization of the patch can be varied by the application of a small in-plane magnetic bias field.<>

Keywords

antenna radiation patterns; electromagnetic wave polarisation; ferrite applications; magnetic thin film devices; microstrip antennas; tuning; ferrite film; in-plane magnetic bias field; magnetic tuning; microstrip patch antenna; microwave antennas; orthogonally polarized; radiation patterns; radiation polarization; single-feed patch; tunable antenna; Dielectric substrates; Ferrite films; Frequency; Magnetic fields; Manufacturing; Microstrip antennas; Patch antennas; Polarization; Saturation magnetization; Tuning;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.173402

Filename

173402