Wideband circularly polarized patch antenna using broadband baluns

Yong-Xin Guo; Kah-Wee Khoo; Ling Chuen Ong

doi:10.1109/TAP.2007.915427

Wideband circularly polarized patch antenna using broadband baluns

Yong-Xin Guo
, Kah-Wee Khoo
, Ling Chuen Ong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

146 Citations (Scopus)

Abstract

A novel 90° broadband balun comprising a broadband 90° Schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual-fed type microstrip antennas. The proposed 90° broadband balun delivers good impedance matching, balanced power splitting and consistent 90° (±5°) phase shifting, across a wide bandwidth (∼57.5%). A circular patch antenna utilizing the proposed 90° broadband balun is shown to attain measured impedance S₁₁ < -10 dB) and axial ratio (AR < 3 dB) bandwidths of 60.24% and 37.7%, respectively, for the dual L-probe case; and 71.28% and 81.6% respectively, for the quadruple L-probe case. © 2008 IEEE.

Original language	English
Pages (from-to)	319-326
Journal	IEEE Transactions on Antennas and Propagation
Volume	56
Issue number	2
DOIs	https://doi.org/10.1109/TAP.2007.915427
Publication status	Published - Feb 2008
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Circular polarization
Microstrip antennas
Wideband antennas

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title = "Wideband circularly polarized patch antenna using broadband baluns",

abstract = "A novel 90° broadband balun comprising a broadband 90° Schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual-fed type microstrip antennas. The proposed 90° broadband balun delivers good impedance matching, balanced power splitting and consistent 90° (±5°) phase shifting, across a wide bandwidth (∼57.5\%). A circular patch antenna utilizing the proposed 90° broadband balun is shown to attain measured impedance S11 < -10 dB) and axial ratio (AR < 3 dB) bandwidths of 60.24\% and 37.7\%, respectively, for the dual L-probe case; and 71.28\% and 81.6\% respectively, for the quadruple L-probe case. {\textcopyright} 2008 IEEE.",

keywords = "Circular polarization, Microstrip antennas, Wideband antennas",

author = "Yong-Xin Guo and Kah-Wee Khoo and Ong, \{Ling Chuen\}",

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journal = "IEEE Transactions on Antennas and Propagation",

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T1 - Wideband circularly polarized patch antenna using broadband baluns

AU - Guo, Yong-Xin

AU - Khoo, Kah-Wee

AU - Ong, Ling Chuen

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2008/2

Y1 - 2008/2

N2 - A novel 90° broadband balun comprising a broadband 90° Schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual-fed type microstrip antennas. The proposed 90° broadband balun delivers good impedance matching, balanced power splitting and consistent 90° (±5°) phase shifting, across a wide bandwidth (∼57.5%). A circular patch antenna utilizing the proposed 90° broadband balun is shown to attain measured impedance S11 < -10 dB) and axial ratio (AR < 3 dB) bandwidths of 60.24% and 37.7%, respectively, for the dual L-probe case; and 71.28% and 81.6% respectively, for the quadruple L-probe case. © 2008 IEEE.

AB - A novel 90° broadband balun comprising a broadband 90° Schiffman phase shifter is introduced as a means of enhancing the wideband circular polarization performance of dual-fed type microstrip antennas. The proposed 90° broadband balun delivers good impedance matching, balanced power splitting and consistent 90° (±5°) phase shifting, across a wide bandwidth (∼57.5%). A circular patch antenna utilizing the proposed 90° broadband balun is shown to attain measured impedance S11 < -10 dB) and axial ratio (AR < 3 dB) bandwidths of 60.24% and 37.7%, respectively, for the dual L-probe case; and 71.28% and 81.6% respectively, for the quadruple L-probe case. © 2008 IEEE.

KW - Circular polarization

KW - Microstrip antennas

KW - Wideband antennas

UR - https://www.scopus.com/pages/publications/40549095012

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U2 - 10.1109/TAP.2007.915427

DO - 10.1109/TAP.2007.915427

M3 - RGC 21 - Publication in refereed journal

SN - 0018-926X

VL - 56

SP - 319

EP - 326

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 2

ER -

Wideband circularly polarized patch antenna using broadband baluns

Abstract

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Research Keywords

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