Microstrip Patch Antenna With Defected Ground Structure for Cross Polarization Suppression

A defected ground structure (DGS) is proposed to reduce the cross-polarized (XP) radiation of a microstrip patch antenna. The proposed DGS pattern is simple and easy to etch on a commercial microstrip substrate. This will only reduce the XP radiation field without affecting the dominant mode input i...

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Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 4; pp. 455 - 458
Main Authors Guha, D., Biswas, M., Antar, Y.M.M.
Format Journal Article
LanguageEnglish
Published New York IEEE 2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antennas
Circular microstrip antenna
Coaxial components
Cross polarization
defected ground structure (DGS)
Etching
Feeds
Frequency
Grounds
Impedance
Input impedance
low cross polarization
microstrip antenna
Microstrip antennas
Patch antennas
Physics
Polarization
Probes
Radiators
Simulation
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Summary:A defected ground structure (DGS) is proposed to reduce the cross-polarized (XP) radiation of a microstrip patch antenna. The proposed DGS pattern is simple and easy to etch on a commercial microstrip substrate. This will only reduce the XP radiation field without affecting the dominant mode input impedance and co-polarized radiation patterns of a conventional antenna. The new concept has been examined and verified experimentally for a particular DGS pattern employing a circular patch as the radiator. Both simulation and experimental results are presented.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2005.860211