Presentation 2017-03-03
Error sensitivity on axial ratio evaluation of elliptical polarization
Izuru Naito, Tomomichi Kagawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An error analysis is presented on the axial ratio evaluation method using measured values of an amplitude ratio and a phase difference between orthogonal linear polarization components. For error sensitivity indices, partial derivatives of the axial ratio were derived with respect to the amplitude ratio or the phase difference. From a practical point of view, formulae of axial ratio error in dB were also derived, the error sources of which are an error of the amplitude ratio in dB, or an error of the phase difference in degrees. A remarkable difference between the formulae was revealed on variation with respect to tilt angle $psi$: the formula of the amplitude ratio error is with $cos 2 psi$-variation, on the contrary, that of the phase difference error is with $sin 2 psi$-variation. Required measurement accuracies are immediately determined for a desired axial ratio accuracy at evaluating axial ratio value by using the derived formulae.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Antennas / Measurement / Elliptical polarization / Axial ratio / Error analysis
Paper # MW2016-203,ICD2016-133
Date of Issue 2017-02-23 (MW, ICD)

Conference Information
Committee MW / ICD
Conference Date 2017/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Okayama Prefectural Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Microwave Integrated Circuit / Microwave Technologies
Chair Yohei Ishikawa(Kyoto Univ.) / Minoru Fujishima(Hiroshima Univ.)
Vice Chair Takao Kuki(Kokushikan Univ.) / Kenjiro Nishikawa(Kagoshima Univ.) / Kenichi Tajima(Mitsubishi Electric) / Hideto Hidaka(Renesas)
Secretary Takao Kuki(Panasonic) / Kenjiro Nishikawa(Tokyo Inst. of Tech.) / Kenichi Tajima(Hiroshima Univ.) / Hideto Hidaka(Univ. of Tokyo)
Assistant Naoto Sekiya(Univ. of Yamanashi) / Satoshi Ono(Univ. of Electro-Comm.) / Takashi Hashimoto(Panasonic) / Masanori Natsui(Tohoku Univ.) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Microwaves / Technical Committee on Integrated Circuits and Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Error sensitivity on axial ratio evaluation of elliptical polarization
Sub Title (in English) On the method using amplitude ratio and phase difference between orthogonal linear polarization components.
Keyword(1) Antennas
Keyword(2) Measurement
Keyword(3) Elliptical polarization
Keyword(4) Axial ratio
Keyword(5) Error analysis
1st Author's Name Izuru Naito
1st Author's Affiliation National Institute of Technology, NIIHAMA College(NIT, NIIHAMA college)
2nd Author's Name Tomomichi Kagawa
2nd Author's Affiliation National Institute of Technology, NIIHAMA College(NIT, NIIHAMA college)
Date 2017-03-03
Paper # MW2016-203,ICD2016-133
Volume (vol) vol.116
Number (no) MW-486,ICD-487
Page pp.pp.85-88(MW), pp.85-88(ICD),
#Pages 4
Date of Issue 2017-02-23 (MW, ICD)