Wang-shaped patch antenna excited by H-plane oriented wideband feed-networks

Chi-Ho Wong; Kwok L. Chung; Wai-Yip Tam; Sarawuth Chaimool

Wang-shaped patch antenna excited by H-plane oriented wideband feed-networks

Chi-Ho Wong
, Kwok L. Chung
, Wai-Yip Tam
, Sarawuth Chaimool

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

Abstract

This paper illustrates the spurious radiation of a wideband feed-network placed above and below the antenna ground-plane. Two identical Wang-shaped patch antennas excited by using H-plane oriented feed-network, with small difference on their antenna heights and feed-probe lengths. As expected, the one with wideband balun arranged below ground-plane (Antenna B) results a better cross-polarisation suppression whereas wideband balun placed above ground-plane (Antenna A) having a better impedance matching. Antenna B has good isolation against cross-polarization due to the main feed-line currents, flowing in H-plane direction. Interestingly, Antenna B exhibits a higher antenna gain and a higher efficiency. However, both antennas are found to have the similar 10-dB return-loss bandwidths.

Original language	English
Title of host publication	Proceedings of the 2010 International Symposium on Antennas and Propagation, 23-26 November 2010, Macao, China
Publisher	University of Macau
Number of pages	4
Publication status	Published - 2010
Event	International Symposium on Antennas and Propagation - Duration: 8 Jul 2012 → …

Conference

Conference	International Symposium on Antennas and Propagation
Period	8/07/12 → …

Keywords

patch antennas
microstrip antennas
bandwith

Cite this

@inproceedings{dae53431471b4cab8d755e675de7277d,

title = "Wang-shaped patch antenna excited by H-plane oriented wideband feed-networks",

abstract = "This paper illustrates the spurious radiation of a wideband feed-network placed above and below the antenna ground-plane. Two identical Wang-shaped patch antennas excited by using H-plane oriented feed-network, with small difference on their antenna heights and feed-probe lengths. As expected, the one with wideband balun arranged below ground-plane (Antenna B) results a better cross-polarisation suppression whereas wideband balun placed above ground-plane (Antenna A) having a better impedance matching. Antenna B has good isolation against cross-polarization due to the main feed-line currents, flowing in H-plane direction. Interestingly, Antenna B exhibits a higher antenna gain and a higher efficiency. However, both antennas are found to have the similar 10-dB return-loss bandwidths.",

keywords = "patch antennas, microstrip antennas, bandwith",

author = "Chi-Ho Wong and Chung, \{Kwok L.\} and Wai-Yip Tam and Sarawuth Chaimool",

year = "2010",

language = "English",

booktitle = "Proceedings of the 2010 International Symposium on Antennas and Propagation, 23-26 November 2010, Macao, China",

publisher = "University of Macau",

note = "International Symposium on Antennas and Propagation ; Conference date: 08-07-2012",

}

TY - GEN

T1 - Wang-shaped patch antenna excited by H-plane oriented wideband feed-networks

AU - Wong, Chi-Ho

AU - Chung, Kwok L.

AU - Tam, Wai-Yip

AU - Chaimool, Sarawuth

PY - 2010

Y1 - 2010

N2 - This paper illustrates the spurious radiation of a wideband feed-network placed above and below the antenna ground-plane. Two identical Wang-shaped patch antennas excited by using H-plane oriented feed-network, with small difference on their antenna heights and feed-probe lengths. As expected, the one with wideband balun arranged below ground-plane (Antenna B) results a better cross-polarisation suppression whereas wideband balun placed above ground-plane (Antenna A) having a better impedance matching. Antenna B has good isolation against cross-polarization due to the main feed-line currents, flowing in H-plane direction. Interestingly, Antenna B exhibits a higher antenna gain and a higher efficiency. However, both antennas are found to have the similar 10-dB return-loss bandwidths.

AB - This paper illustrates the spurious radiation of a wideband feed-network placed above and below the antenna ground-plane. Two identical Wang-shaped patch antennas excited by using H-plane oriented feed-network, with small difference on their antenna heights and feed-probe lengths. As expected, the one with wideband balun arranged below ground-plane (Antenna B) results a better cross-polarisation suppression whereas wideband balun placed above ground-plane (Antenna A) having a better impedance matching. Antenna B has good isolation against cross-polarization due to the main feed-line currents, flowing in H-plane direction. Interestingly, Antenna B exhibits a higher antenna gain and a higher efficiency. However, both antennas are found to have the similar 10-dB return-loss bandwidths.

KW - patch antennas

KW - microstrip antennas

KW - bandwith

UR - http://handle.uws.edu.au:8081/1959.7/525619

M3 - Conference Paper

BT - Proceedings of the 2010 International Symposium on Antennas and Propagation, 23-26 November 2010, Macao, China

PB - University of Macau

T2 - International Symposium on Antennas and Propagation

Y2 - 8 July 2012

ER -

Wang-shaped patch antenna excited by H-plane oriented wideband feed-networks

Abstract

Conference

Keywords

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