Dual-Band Operation of a Circularly Polarized Four-Arm Curl Antenna with Asymmetric Arm Length
2016 ◽
Vol 2016
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pp. 1-10
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Keyword(s):
This paper presents dual-band operation of a single-feed composite cavity-backed four-arm curl antenna. Dual-band operation is achieved with the presence of the asymmetrical arm structure. A pair of vacant-quarter printed rings is used in the feed structure to produce a good circular polarization (CP) at both bands. The cavity-backed reflector is employed to improve the CP radiation characteristics in terms of the 3-dB axial ratio beamwidth and broadside gain. The proposed antenna is widely applicable in dual-band communication systems that have a small frequency ratio. Examples of such a system are global positioning systems.
2015 ◽
Vol 8
(8)
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pp. 1207-1213
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Keyword(s):
2013 ◽
Vol 2013
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pp. 1-5
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2010 ◽
Vol 15
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pp. 145-152
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Keyword(s):
Dual-Band Circularly-Polarized CPW-Fed Slot Antenna With a Small Frequency Ratio and Wide Bandwidths
2011 ◽
Vol 59
(4)
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pp. 1379-1384
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2016 ◽
Vol 9
(4)
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pp. 843-850
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Keyword(s):
2014 ◽
Vol 56
(8)
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pp. 1933-1937
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Keyword(s):