Wideband Dual-Mode Patch Antenna with Compact CPW Feeding Network for Pattern Diversity Application

Changjiang Deng; Xin Lv; Zhenghe Feng

doi:10.1109/TAP.2018.2809791

Wideband Dual-Mode Patch Antenna with Compact CPW Feeding Network for Pattern Diversity Application

Changjiang Deng^*, Xin Lv, Zhenghe Feng

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

A wideband microstrip patch antenna is proposed in this communication for pattern diversity application. Broadside and omnidirectional radiation patterns are generated by the odd and even modes of a single circular patch. A compact feeding network based on coplanar waveguide is designed to provide in-phase and out-of-phase excitations, which can excite the two modes in wide bandwidth. The size of the feeding network is only 35 \times 14.5 mm². A prototype of the proposed antenna is fabricated and tested. The measured overlapped bandwidth (\vert \text{S}-{11}\vert < -10 dB and \vert \text{S}-{22}\vert < -10dB) achieves 775 MHz (2.165-2.94 GHz) or 31% corresponding to the center frequency. The Port isolation is below -28 dB in the entire bandwidth.

Original language	English
Pages (from-to)	2628-2633
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	66
Issue number	5
DOIs	https://doi.org/10.1109/TAP.2018.2809791
Publication status	Published - May 2018

Keywords

Coplanar waveguide (CPW) feeding
even/odd mode patch
pattern diversity
wideband patch antenna

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10.1109/TAP.2018.2809791

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title = "Wideband Dual-Mode Patch Antenna with Compact CPW Feeding Network for Pattern Diversity Application",

abstract = "A wideband microstrip patch antenna is proposed in this communication for pattern diversity application. Broadside and omnidirectional radiation patterns are generated by the odd and even modes of a single circular patch. A compact feeding network based on coplanar waveguide is designed to provide in-phase and out-of-phase excitations, which can excite the two modes in wide bandwidth. The size of the feeding network is only 35 \times 14.5 mm2. A prototype of the proposed antenna is fabricated and tested. The measured overlapped bandwidth (\vert \text{S}-{11}\vert < -10 dB and \vert \text{S}-{22}\vert < -10dB) achieves 775 MHz (2.165-2.94 GHz) or 31% corresponding to the center frequency. The Port isolation is below -28 dB in the entire bandwidth.",

keywords = "Coplanar waveguide (CPW) feeding, even/odd mode patch, pattern diversity, wideband patch antenna",

author = "Changjiang Deng and Xin Lv and Zhenghe Feng",

note = "Publisher Copyright: {\textcopyright} 1963-2012 IEEE.",

year = "2018",

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T1 - Wideband Dual-Mode Patch Antenna with Compact CPW Feeding Network for Pattern Diversity Application

AU - Deng, Changjiang

AU - Lv, Xin

AU - Feng, Zhenghe

PY - 2018/5

Y1 - 2018/5

N2 - A wideband microstrip patch antenna is proposed in this communication for pattern diversity application. Broadside and omnidirectional radiation patterns are generated by the odd and even modes of a single circular patch. A compact feeding network based on coplanar waveguide is designed to provide in-phase and out-of-phase excitations, which can excite the two modes in wide bandwidth. The size of the feeding network is only 35 \times 14.5 mm2. A prototype of the proposed antenna is fabricated and tested. The measured overlapped bandwidth (\vert \text{S}-{11}\vert < -10 dB and \vert \text{S}-{22}\vert < -10dB) achieves 775 MHz (2.165-2.94 GHz) or 31% corresponding to the center frequency. The Port isolation is below -28 dB in the entire bandwidth.

AB - A wideband microstrip patch antenna is proposed in this communication for pattern diversity application. Broadside and omnidirectional radiation patterns are generated by the odd and even modes of a single circular patch. A compact feeding network based on coplanar waveguide is designed to provide in-phase and out-of-phase excitations, which can excite the two modes in wide bandwidth. The size of the feeding network is only 35 \times 14.5 mm2. A prototype of the proposed antenna is fabricated and tested. The measured overlapped bandwidth (\vert \text{S}-{11}\vert < -10 dB and \vert \text{S}-{22}\vert < -10dB) achieves 775 MHz (2.165-2.94 GHz) or 31% corresponding to the center frequency. The Port isolation is below -28 dB in the entire bandwidth.

KW - Coplanar waveguide (CPW) feeding

KW - even/odd mode patch

KW - pattern diversity

KW - wideband patch antenna

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DO - 10.1109/TAP.2018.2809791

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Wideband Dual-Mode Patch Antenna with Compact CPW Feeding Network for Pattern Diversity Application

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Keywords

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