Presentation 2003/7/24
Impedance Measurement of Antennas on a Portable Telephone Excluding Influence of a RF Cable
Toru FUKASAWA, Kenkichi SHIMOMURA, Masataka OHTSUKA,
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Abstract(in English) In this paper, we propose an accurate measurement method for impedance characteristics of an antenna on a portable telephone. We use the fiber optics for feeding cables to remove the undesired influence of the coaxial cable. We show the measurement system using the network analyzer together with the fiber optics can achieve results as accurate as that of the conventional coaxial cable, and the influence of the fiber optics is negligible. The measurement results of a monopole antenna on a rectangular box show the validity of the measurement system. On the other hand, the conventional method using the coaxial cable affects the measurement results.
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Keyword(in English) portable telephone / antenna / measurement / fiber optics
Paper # A・P2003-74,SAT2003-66,MW2003-80,OPE2003-67
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Conference Date 2003/7/24(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Impedance Measurement of Antennas on a Portable Telephone Excluding Influence of a RF Cable
Sub Title (in English)
Keyword(1) portable telephone
Keyword(2) antenna
Keyword(3) measurement
Keyword(4) fiber optics
1st Author's Name Toru FUKASAWA
1st Author's Affiliation Information Technology RD Center, Mitsubishi Electric Corporation()
2nd Author's Name Kenkichi SHIMOMURA
2nd Author's Affiliation Information Technology RD Center, Mitsubishi Electric Corporation
3rd Author's Name Masataka OHTSUKA
3rd Author's Affiliation Information Technology RD Center, Mitsubishi Electric Corporation
Date 2003/7/24
Paper # A・P2003-74,SAT2003-66,MW2003-80,OPE2003-67
Volume (vol) vol.103
Number (no) 234
Page pp.pp.-
#Pages 6
Date of Issue