Referenced Items are not available for this document.
Application of defected ground structure (DGS) to suppress cross-polarized (XP) radiation from a microstrip patch antenna has been reinvestigated using a new DGS geometry for much improved characteristics. Arc-shaped defect has been used in pair, symmetrically located under a circular patch. A number of optimization parameters have been examined using simulated results, leading to a design indicating improved XP behavior. A set of identical prototypes, with and without DGS, have been experimentally studied. The presence of the DGS shows as much as 30 dB isolation of the XP level from its peak radiation, and that compared to an identical patch without DGS indicates an improvement by as much as 12 dB. The relative suppression in XP values are found to be around 7-12 dB over ??75?? elevation around the boresight of the patch.
Published in:
Antennas and Wireless Propagation Letters, IEEE
(Volume:8
)
Date of Publication: 2009
- Page(s):
- 1367 - 1369
- ISSN :
- 1536-1225
- INSPEC Accession Number:
- 11147900
- Digital Object Identifier :
- 10.1109/LAWP.2009.2039462
- Product Type:
- Journals & Magazines
- Date of Publication :
- 31 December 2009
- Date of Current Version :
- 22 January 2010
- Issue Date :
- 2009
- Sponsored by :
- IEEE Antennas and Propagation Society
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