Presentation	2012/5/17 Propositions and Examinations on Feeding Structures for Circularly Polarized Antennas Takeshi FUKUSAKO,
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Abstract(in English)	In this paper, two types of circularly polarized broadband antennas are presented. One of the antennas has an L-shaped probe with an aperture, which yields an 3-dB axial ratio bandwidth of 40% at maximum. The other one is a patch antenna which is fabricated above an artifitical ground structure with rectangular unit cells. This antenna has a 3-dB axial ratio bandwidth of 30% even though the structure is a low-profile. For both structures, the structures, characteristics and the behavior are discussed.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	Circularly polarized antennas / Broadband antennas / L-shaped probe / Artificial ground structure
Paper #	A・P2012-20
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Conference Information
Committee	AP
Conference Date	2012/5/17(1days)
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Paper Information
Registration To	Antennas and Propagation (A・P)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Propositions and Examinations on Feeding Structures for Circularly Polarized Antennas
Sub Title (in English)
Keyword(1)	Circularly polarized antennas
Keyword(2)	Broadband antennas
Keyword(3)	L-shaped probe
Keyword(4)	Artificial ground structure
1st Author's Name	Takeshi FUKUSAKO
1st Author's Affiliation	Graduate School of Science & Technology, Kumamoto University()
Date	2012/5/17
Paper #	A・P2012-20
Volume (vol)	vol.112
Number (no)	53
Page	pp.pp.-
#Pages	6
Date of Issue