A novel aperture isolation circuit for use in phased array systems

Author

Jacomb-hood, Anthony W. ; Booth, Michael S. ; Houston, D.E. ; Alcorn, T.

Author_Institution

General Electric Electron. Lab., Syracuse, NY, USA

Volume

38

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1994

Lastpage

2000

Abstract

A novel electronically controlled matching network has been demonstrated as an aperture isolation circuit. This approach offers smaller size, lower weight, and potentially lower cost than circulators. An X-band MMIC (monolithic microwave integrated circuit) realization of this circuit has comparable loss to a circulator. An S-band hybrid realization demonstrated reductions in insertion loss of up to 2.3 dB for antenna VSWRs (voltage standing wave ratios) of up to 5:1 lying within a 100° sector on the Smith chart. One disadvantage of this approach is that it increases the complexity of controlling and calibrating the module

Keywords

MMIC; antenna phased arrays; hybrid integrated circuits; impedance matching; microwave integrated circuits; S-band hybrid realization; X-band MMIC-realisation; aperture isolation circuit; electronically controlled matching network; module calibration; monolithic microwave integrated circuit; phased array systems; Aerospace electronics; Apertures; Capacitance; Circuits; Circulators; Impedance; MMICs; P-i-n diodes; Phased arrays; Reflection;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.64585

Filename

64585