Vertical Radiation Patterns of Trunk Mount Antennas for Mobile Radio Communications

Kunitoshi NISHIKAWA; Yoshikazu ASANO

Vertical Radiation Patterns of Trunk Mount Antennas for Mobile Radio Communications

Kunitoshi NISHIKAWA, Yoshikazu ASANO

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Theoretical and experimental studies are made in the UHF band on a quarter wavelength monopole and a half wavelength dipole located on a trunk-hood of a car. To calculate vertical radiation patterns, the theoretical model of the car body and the GTD approach are adopted. It is confirmed from a comparison between calculated and measured results that the theoretical model is very useful to analyze the trunk mount antenna performance and the effect of the body can be well examined with it. The results of pattern calculation for two type of antennas show that vertical radiation patterns, especially the pattern in the front direction of the car, depend largely on the car body. That is, many sharp lobes appear in the vertical pattern, and further, the shape of the lobe and the gain vary largely with the change of the antenna height and location. An approach of this kind can be effectively utilized as a design tool to estimate the radiation performance of mobile antennas.

Publication: IEICE TRANSACTIONS on Communications Vol.E74-B No.10 pp.3227-3232

Publication Date: 1991/10/25

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Type of Manuscript: Special Section PAPER (Special Issue on Mobile Communication Antennas)

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Kunitoshi NISHIKAWA
Yoshikazu ASANO

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Kunitoshi NISHIKAWA, Yoshikazu ASANO, "Vertical Radiation Patterns of Trunk Mount Antennas for Mobile Radio Communications" in IEICE TRANSACTIONS on Communications, vol. E74-B, no. 10, pp. 3227-3232, October 1991, doi: .
Abstract: Theoretical and experimental studies are made in the UHF band on a quarter wavelength monopole and a half wavelength dipole located on a trunk-hood of a car. To calculate vertical radiation patterns, the theoretical model of the car body and the GTD approach are adopted. It is confirmed from a comparison between calculated and measured results that the theoretical model is very useful to analyze the trunk mount antenna performance and the effect of the body can be well examined with it. The results of pattern calculation for two type of antennas show that vertical radiation patterns, especially the pattern in the front direction of the car, depend largely on the car body. That is, many sharp lobes appear in the vertical pattern, and further, the shape of the lobe and the gain vary largely with the change of the antenna height and location. An approach of this kind can be effectively utilized as a design tool to estimate the radiation performance of mobile antennas.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e74-b_10_3227/_p

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@ARTICLE{e74-b_10_3227,
author={Kunitoshi NISHIKAWA, Yoshikazu ASANO, },
journal={IEICE TRANSACTIONS on Communications},
title={Vertical Radiation Patterns of Trunk Mount Antennas for Mobile Radio Communications},
year={1991},
volume={E74-B},
number={10},
pages={3227-3232},
abstract={Theoretical and experimental studies are made in the UHF band on a quarter wavelength monopole and a half wavelength dipole located on a trunk-hood of a car. To calculate vertical radiation patterns, the theoretical model of the car body and the GTD approach are adopted. It is confirmed from a comparison between calculated and measured results that the theoretical model is very useful to analyze the trunk mount antenna performance and the effect of the body can be well examined with it. The results of pattern calculation for two type of antennas show that vertical radiation patterns, especially the pattern in the front direction of the car, depend largely on the car body. That is, many sharp lobes appear in the vertical pattern, and further, the shape of the lobe and the gain vary largely with the change of the antenna height and location. An approach of this kind can be effectively utilized as a design tool to estimate the radiation performance of mobile antennas.},
keywords={},
doi={},
ISSN={},
month={October},}

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TY - JOUR
TI - Vertical Radiation Patterns of Trunk Mount Antennas for Mobile Radio Communications
T2 - IEICE TRANSACTIONS on Communications
SP - 3227
EP - 3232
AU - Kunitoshi NISHIKAWA
AU - Yoshikazu ASANO
PY - 1991
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E74-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 1991
AB - Theoretical and experimental studies are made in the UHF band on a quarter wavelength monopole and a half wavelength dipole located on a trunk-hood of a car. To calculate vertical radiation patterns, the theoretical model of the car body and the GTD approach are adopted. It is confirmed from a comparison between calculated and measured results that the theoretical model is very useful to analyze the trunk mount antenna performance and the effect of the body can be well examined with it. The results of pattern calculation for two type of antennas show that vertical radiation patterns, especially the pattern in the front direction of the car, depend largely on the car body. That is, many sharp lobes appear in the vertical pattern, and further, the shape of the lobe and the gain vary largely with the change of the antenna height and location. An approach of this kind can be effectively utilized as a design tool to estimate the radiation performance of mobile antennas.
ER -