An Omnidirectional Broad Bandwidth Microstrip Anttenna Using a Parasitic Cylinder

Masahiro KARIKOMI; Tohru MATSUOKA; Li Win CHEN

An Omnidirectional Broad Bandwidth Microstrip Anttenna Using a Parasitic Cylinder

Masahiro KARIKOMI, Tohru MATSUOKA, Li Win CHEN

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An omnidirectional microstrip antenna using a parasitic cylinder is presented. A rectangular patch is formed on a dielectric substrate and it's completely covered with an aluminum cylinder which is somewhat shorter than a half of free space wavelength. Under such configuration the aluminum cylinder works as a parasitic element. This antenna can provides uniform omnidirectional radiation patterns and a broad frequency bandwidth. In this paper an experimental method for designing such an element is described. Measured input impedance characteristics, current distribution around the surface of the cylinder and patterns are also shown. By properly adjusting the coupling intensity between the patch and the parasitic cylinder a broad bandwidth antenna element can be realized. Some methods to adjust the coupling intensity are shown. A wide bandwidth element up to 14% for VSWR1.5 is obtained. Arranging many patches lengthways on a substrate and placing metallic cylinders around each patches, we can realize a high-gain and broad bandwidth collinear antenna.

Publication: IEICE TRANSACTIONS on Communications Vol.E76-B No.12 pp.1514-1517

Publication Date: 1993/12/25

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Type of Manuscript: Special Section PAPER (Special Issue on 1992 Internatioal Symposium on Antennas and Propagation)

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Masahiro KARIKOMI, Tohru MATSUOKA, Li Win CHEN, "An Omnidirectional Broad Bandwidth Microstrip Anttenna Using a Parasitic Cylinder" in IEICE TRANSACTIONS on Communications, vol. E76-B, no. 12, pp. 1514-1517, December 1993, doi: .
Abstract: An omnidirectional microstrip antenna using a parasitic cylinder is presented. A rectangular patch is formed on a dielectric substrate and it's completely covered with an aluminum cylinder which is somewhat shorter than a half of free space wavelength. Under such configuration the aluminum cylinder works as a parasitic element. This antenna can provides uniform omnidirectional radiation patterns and a broad frequency bandwidth. In this paper an experimental method for designing such an element is described. Measured input impedance characteristics, current distribution around the surface of the cylinder and patterns are also shown. By properly adjusting the coupling intensity between the patch and the parasitic cylinder a broad bandwidth antenna element can be realized. Some methods to adjust the coupling intensity are shown. A wide bandwidth element up to 14% for VSWR1.5 is obtained. Arranging many patches lengthways on a substrate and placing metallic cylinders around each patches, we can realize a high-gain and broad bandwidth collinear antenna.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e76-b_12_1514/_p

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@ARTICLE{e76-b_12_1514,
author={Masahiro KARIKOMI, Tohru MATSUOKA, Li Win CHEN, },
journal={IEICE TRANSACTIONS on Communications},
title={An Omnidirectional Broad Bandwidth Microstrip Anttenna Using a Parasitic Cylinder},
year={1993},
volume={E76-B},
number={12},
pages={1514-1517},
abstract={An omnidirectional microstrip antenna using a parasitic cylinder is presented. A rectangular patch is formed on a dielectric substrate and it's completely covered with an aluminum cylinder which is somewhat shorter than a half of free space wavelength. Under such configuration the aluminum cylinder works as a parasitic element. This antenna can provides uniform omnidirectional radiation patterns and a broad frequency bandwidth. In this paper an experimental method for designing such an element is described. Measured input impedance characteristics, current distribution around the surface of the cylinder and patterns are also shown. By properly adjusting the coupling intensity between the patch and the parasitic cylinder a broad bandwidth antenna element can be realized. Some methods to adjust the coupling intensity are shown. A wide bandwidth element up to 14% for VSWR1.5 is obtained. Arranging many patches lengthways on a substrate and placing metallic cylinders around each patches, we can realize a high-gain and broad bandwidth collinear antenna.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - An Omnidirectional Broad Bandwidth Microstrip Anttenna Using a Parasitic Cylinder
T2 - IEICE TRANSACTIONS on Communications
SP - 1514
EP - 1517
AU - Masahiro KARIKOMI
AU - Tohru MATSUOKA
AU - Li Win CHEN
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E76-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1993
AB - An omnidirectional microstrip antenna using a parasitic cylinder is presented. A rectangular patch is formed on a dielectric substrate and it's completely covered with an aluminum cylinder which is somewhat shorter than a half of free space wavelength. Under such configuration the aluminum cylinder works as a parasitic element. This antenna can provides uniform omnidirectional radiation patterns and a broad frequency bandwidth. In this paper an experimental method for designing such an element is described. Measured input impedance characteristics, current distribution around the surface of the cylinder and patterns are also shown. By properly adjusting the coupling intensity between the patch and the parasitic cylinder a broad bandwidth antenna element can be realized. Some methods to adjust the coupling intensity are shown. A wide bandwidth element up to 14% for VSWR1.5 is obtained. Arranging many patches lengthways on a substrate and placing metallic cylinders around each patches, we can realize a high-gain and broad bandwidth collinear antenna.
ER -