Presentation 2002/4/10
Adjustable Impedance Matching for ESPAR Antenna
Kyouichi IIGUSA, Takashi OHIRA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An ESPAR (electronically steerable passive array radiator) antenna is composed of a fed element and parasitic elements loaded with variable reactors. Directivity can be changed by the variable reactors; however, then the input impedance also changes. A new technique is proposed to keep the impedance matching by also loading the fed element with a variable reactor. An additional control device or algorithm is not needed because the reactor loaded into the fed element can be controlled with reactors loaded into the parasitic elements. In-series and in-parallel circuit schemes are proposed to load a variable reactor into a fed element are proposed, and two corresponding equivalent weight vector formulations for a gradient of gain are also shown.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) ESPAR antenna / Impedance matching / Wide band / Fed element / Equivalent weight vector / ESPAR matrix
Paper # SCE2002-14
Date of Issue

Conference Information
Committee SCE
Conference Date 2002/4/10(1days)
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Place (in English)
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Paper Information
Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Adjustable Impedance Matching for ESPAR Antenna
Sub Title (in English)
Keyword(1) ESPAR antenna
Keyword(2) Impedance matching
Keyword(3) Wide band
Keyword(4) Fed element
Keyword(5) Equivalent weight vector
Keyword(6) ESPAR matrix
1st Author's Name Kyouichi IIGUSA
1st Author's Affiliation ATR Adaptive Communications Research Laboratories()
2nd Author's Name Takashi OHIRA
2nd Author's Affiliation ATR Adaptive Communications Research Laboratories
Date 2002/4/10
Paper # SCE2002-14
Volume (vol) vol.102
Number (no) 10
Page pp.pp.-
#Pages 6
Date of Issue