Radiation Pattern Analysis of a GPS Microstrip Antenna Mounted on the Roof of a Car Model
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概要
- 論文の詳細を見る
The radiation patterns of a circularly polarized GPS microstrip disk antenna mounted on the roof of a car are analyzed using UTD. Based upon the excellent agreements between the calculated and the measured results in all the observation directions, the effects of the antenna location upon radiation patterns are discussed in detail. As the distance between the antenna and the edge decreases, the gain in the low elevation angle on the same side as the edge considerably decreases. The effects of the earth are also extracted. They cause the fine ripples in the low elevation angle, though they are negligible in macroscopical view. Furthermore, the validity of the simple design neglecting the earth and the plates other than roof is investigated. The errors are localized at low elevation angle. The results obtained in this paper are useful in the design of the general antennas for mobile communication.
- 社団法人電子情報通信学会の論文
- 1994-06-25
著者
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ANDO Makoto
Faculty of Pharmaceutical Sciences, Nagasaki University
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Goto Naohisa
Faculty of Engineering, Tokyo Institute of Technology
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Goto N
Radial Antenna Laboratory
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Yoshida Goro
Jrc
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Goto Naohisa
Faculty Of Engineering Tokyo Institute Of Technology
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Natsuhara Keiichi
Faculty of Engineering, Tokyo Institute of Technology
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Yoshida Goro
Mitaka Plant, Japan Radio Co., Ltd.
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Natsuhara K
Faculty Of Engineering Tokyo Institute Of Technology
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Ando Makoto
Faculty Of Engineering Tokyo Institute Of Technology
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