Beam steering and monopulse processing of probe-fed dielectric resonator antennas

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Title Beam steering and monopulse processing of probe-fed dielectric resonator antennas
Author Kingsley, S.; O'Keefe, Steven Gregory
Journal Name IEE Proceedings - Radar, Sonar and Navigation
Year Published 1999
Place of publication UK
Publisher Institute of Electrical and Electronics Engineers
Abstract It is shown that the azimuth radiation pattern direction of a multi-probe dielectric resonator antenna (DRA) can he changed by exciting different probes within the dielectric when the other probes are open-circuited. When two probes are excited simultaneously, smaller steering increments can be obtained without significantly changing the beamwidths. In some combinations, a pair of probes has a significantly greater bandwidth than a single probe. Driving pairs of probes with unequal power division is shown to steer the beam by the expected amount, thus forming the basis for future electronic beam steering of DRAs and creating the possibility of obtaining any desired steering angle. DRA monopulse processing, using two beams to form sum and difference patterns, is also demonstrated. These results have obvious applications for radar systems where control of the radiation pattern is desirable. The efficiency of DRAs make them well suited to these applications, except where large bandwidths are required.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Volume 146
Issue Number 3
Page from 121
Page to 125
ISSN 1350-2395
Date Accessioned 2000-01-01
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Signal Processing
Publication Type Article in Scholarly Refereed Journal
Publication Type Code c1

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