RADIATION-PATTERN ANALYSIS OF A GPS MICROSTRIP ANTENNA MOUNTED ON THE ROOF OF A CAR MODEL

被引：0

作者：

NATSUHARA, K ^{[1
]}

ANDO, M ^{[1
]}

GOTO, N ^{[1
]}

YOSHIDA, G ^{[1
]}

机构：

[1] JAPAN RADIO CO LTD, MITAKA PLANT, MITAKA 181, JAPAN

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 1994年 / E77B卷 / 06期

关键词：

LAND MOBILE ANTENNA; MICROSTRIP ANTENNA; GPS; UTD;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：823 / 830

页数：8

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