Presentation 2017-11-11
Near-Field/Far-Field Transformation of VHF-Band Antenna in a Cylindrical Scanning Geometry
Hiroaki Sakamoto, Takashi Yanagi, Yasuhiro Nishioka, Naofumi Yoneda, Yuji Ando, Chiharu Miyazaki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we performed VHF-band near-field measurement on cylindrical scanning. To suppress unnecessary radiation from RF cable and improve a measurement accuracy, we constructed a near-field measurement system using RoF transformed RF signal to Light signal. As a result, we could measure near-field of broad-beam antenna in 100MHz accurately. In addition, we derived a condition of optimal cylindrical height for improving transformation accuracy, and the condition corresponded well with the measurement result.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Near-Field measurement / NF-FF transformations / Radio of Fiber / Image theory / 2 element Yagi antenna
Paper # EMT2017-72
Date of Issue 2017-11-02 (EMT)

Conference Information
Committee EMT / IEE-EMT
Conference Date 2017/11/9(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Tendo Hotel (Tendo, Yamagata)
Topics (in Japanese) (See Japanese page)
Topics (in English) Electromagnetic Theory, etc.
Chair Akira Hirose(Univ. of Tokyo) / Keiji Goto(National Defense Academy)
Vice Chair Koichi Hirayama(Kitami Inst. of Tech.)
Secretary Koichi Hirayama(Univ. of Hyogo) / (Tokyo Metro. Coll. of Tech)
Assistant Tsuyoshi Matsuoka(Kyushu Sangyo Univ.) / Yoshihiro Naka(Kyushu University of Health and Welfare)

Paper Information
Registration To Technical Committee on Electromagnetic Theory / Technical Meeting on Electromagnetic Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Near-Field/Far-Field Transformation of VHF-Band Antenna in a Cylindrical Scanning Geometry
Sub Title (in English)
Keyword(1) Near-Field measurement
Keyword(2) NF-FF transformations
Keyword(3) Radio of Fiber
Keyword(4) Image theory
Keyword(5) 2 element Yagi antenna
1st Author's Name Hiroaki Sakamoto
1st Author's Affiliation Mitsubishi Electric(Mitsubishi Electric)
2nd Author's Name Takashi Yanagi
2nd Author's Affiliation Mitsubishi Electric(Mitsubishi Electric)
3rd Author's Name Yasuhiro Nishioka
3rd Author's Affiliation Mitsubishi Electric(Mitsubishi Electric)
4th Author's Name Naofumi Yoneda
4th Author's Affiliation Mitsubishi Electric(Mitsubishi Electric)
5th Author's Name Yuji Ando
5th Author's Affiliation Mitsubishi Electric(Mitsubishi Electric)
6th Author's Name Chiharu Miyazaki
6th Author's Affiliation Mitsubishi Electric(Mitsubishi Electric)
Date 2017-11-11
Paper # EMT2017-72
Volume (vol) vol.117
Number (no) EMT-289
Page pp.pp.263-268(EMT),
#Pages 6
Date of Issue 2017-11-02 (EMT)