Radiation Pattern Analysis of a GPS Microstrip Antenna Mounted on the Roof of a Car Model

Keiichi NATSUHARA; Makoto ANDO; Naohisa GOTO; Goro YOSHIDA

Radiation Pattern Analysis of a GPS Microstrip Antenna Mounted on the Roof of a Car Model

Keiichi NATSUHARA, Makoto ANDO, Naohisa GOTO, Goro YOSHIDA

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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.

Publication: IEICE TRANSACTIONS on Communications Vol.E77-B No.6 pp.823-830

Publication Date: 1994/06/25

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Type of Manuscript: PAPER

Category: Antennas and Propagation

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Keiichi NATSUHARA, Makoto ANDO, Naohisa GOTO, Goro YOSHIDA, "Radiation Pattern Analysis of a GPS Microstrip Antenna Mounted on the Roof of a Car Model" in IEICE TRANSACTIONS on Communications, vol. E77-B, no. 6, pp. 823-830, June 1994, doi: .
Abstract: 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.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e77-b_6_823/_p

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@ARTICLE{e77-b_6_823,
author={Keiichi NATSUHARA, Makoto ANDO, Naohisa GOTO, Goro YOSHIDA, },
journal={IEICE TRANSACTIONS on Communications},
title={Radiation Pattern Analysis of a GPS Microstrip Antenna Mounted on the Roof of a Car Model},
year={1994},
volume={E77-B},
number={6},
pages={823-830},
abstract={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.},
keywords={},
doi={},
ISSN={},
month={June},}

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TY - JOUR
TI - Radiation Pattern Analysis of a GPS Microstrip Antenna Mounted on the Roof of a Car Model
T2 - IEICE TRANSACTIONS on Communications
SP - 823
EP - 830
AU - Keiichi NATSUHARA
AU - Makoto ANDO
AU - Naohisa GOTO
AU - Goro YOSHIDA
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E77-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 1994
AB - 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.
ER -