Theoretical and experimental studies of cavity-backed slot antenna excited by a narrow strip

Author

Hashemi-Yeganeh, Shahroh ; Birtcher, Craig

Author_Institution

Telecommun. Res. Center, Arizona State Univ., Tempe, AZ, USA

Volume

41

Issue

2

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

236

Lastpage

241

Abstract

Theoretical and experimental studies of a cavity-backed slot antenna excited internally by a suspended narrow strip are undertaken. Coupled integral equations are developed to compute the electric field distribution in the slot and the surface current distribution on the strip. The input impedance of the cavity at the feeding point on the strip has been computed theoretically and measured experimentally. The impedance data, being a function of cavity dimension, slot length, strip length, and frequency, can be polyfitted and used to implement a systematic design procedure to construct a planar array of these slots

Keywords

cavity resonators; current distribution; electric fields; electric impedance; integral equations; microwave antenna arrays; slot antennas; cavity-backed slot antenna; coupled integral equations; electric field distribution; input impedance; narrow strip excitation; surface current distribution; suspended narrow strip; systematic design procedure; Antenna measurements; Antenna theory; Current distribution; Distributed computing; Frequency; Impedance measurement; Integral equations; Planar arrays; Slot antennas; Surface impedance;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.214618

Filename

214618