Scanned microstrip arrays using simple integrated ferrite phase shifters

Author

Batchelor, J.C. ; Economou, L. ; Langley, R.J.

Author_Institution

Electron. Eng. Labs., Kent Univ., Canterbury, UK

Volume

147

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

237

Lastpage

241

Abstract

A phase-steered microstrip antenna array is presented, suitable for application as a mobile vehicle satellite terminal. Phase shifters are implemented on a hybrid dielectric-ferrite substrate, and use is made of the phase transition near the cut-off region of the biased ferrite. Small permanent magnets and carefully biased ferrites remove the need for large applied electromagnetic fields. 2-, 3- and 4-element demonstrator arrays have been constructed, and up to 30° beam squint has been achieved for applied magnetic biases of about 100 Oe

Keywords

antenna phased arrays; beam steering; ferrite phase shifters; microstrip antenna arrays; microwave phase shifters; mobile antennas; mobile satellite communication; permanent magnets; scanning antennas; 2-element demonstrator array; 3-element demonstrator array; 4-element demonstrator array; beam squint; beam-steered array; biased ferrite; biased ferrites; cut-off region; hybrid dielectric-ferrite substrate; magnetic bias; mobile vehicle satellite terminal; permanent magnets; phase shifters; phase transition; phase-steered microstrip antenna array; scanned microstrip arrays;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:20000428

Filename

850635