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A square patch antenna using an in-plane biased yttrium iron garnet (YIG) polycrystalline substrate is presented. The patch antenna is fed through a cross-slot with slots of equal or unequal length to control the polarization. The experimental results reveal that the rotation direction of the elliptical polarization was switched between right-hand circular polarization (RHCP) and left-hand circular polarization (LHCP) controlling the axial ratio continuously without switching devices. The antenna gain was also investigated with respect to this polarization switching and the magnetic bias.
Published in:
Antennas and Propagation, IEEE Transactions on
(Volume:52
,
Issue:
1
)
Date of Publication: Jan. 2004
- Page(s):
- 325 - 327
- ISSN :
- 0018-926X
- INSPEC Accession Number:
- 7957762
- Digital Object Identifier :
- 10.1109/TAP.2003.820972
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 26 February 2004
- Issue Date :
- Jan. 2004
- Sponsored by :
- IEEE Antennas and Propagation Society
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