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A low profile shorted-patch antenna with enhanced bandwidth and reduced h-plane cross-polarization
Liu N.-W.2; Zhu L.1; Fu G.2; Liu Y.2
2018-10-01
Source PublicationIEEE Transactions on Antennas and Propagation
ISSN0018926X
Volume66Issue:10Pages:5602-5607
Abstract

A low profile shorted-patch antenna (SPA) with enhanced bandwidth and reduced the H-plane cross-polarization (cross-pol) is proposed in this communication. Initially, the radiated field of a conventional SPA is theoretically investigated. It is demonstrated that its high cross-pol of the H-plane radiation patterns can be reduced by introducing a pair of shorting walls underneath the nonradiating edges of the SPA. Then, the width of the radiating patch is progressively enlarged so as to decrease the resonant frequency of TM mode. After that, an array of six shorting pins is loaded underneath the patch radiator toward pushing up the resonant frequency of TM mode. In addition, the linear Slots 1 and 2 are cut on the rectangular patch to reduce the resonant frequency of TM mode and achieve a good impedance matching, respectively. With these arrangements, all of these three radiative modes are reallocated in proximity to each other, leading to the formulation of the improved SPA with low profile, wide-bandwidth, and low cross-pol performances. Finally, the proposed antenna is fabricated and measured. The measured results show that its impedance bandwidth is extended up to about 26.2% under triple-mode resonance. In addition, its thickness is maintained as small as about 0.059 free-space wavelength. In particular, the H-plane cross-pol of the SPA is successfully decreased to below-12.3 dB over the operating band.

KeywordEnhanced Impedance Bandwidth Low Cross-polarization (Cross-pol) Low Profile Shorted-patch Antenna (Spa)
DOI10.1109/TAP.2018.2855730
URLView the original
Indexed BySCI
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000446652300066
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Universidade de Macau
2.Xidian University
Recommended Citation
GB/T 7714
Liu N.-W.,Zhu L.,Fu G.,et al. A low profile shorted-patch antenna with enhanced bandwidth and reduced h-plane cross-polarization[J]. IEEE Transactions on Antennas and Propagation,2018,66(10):5602-5607.
APA Liu N.-W.,Zhu L.,Fu G.,&Liu Y..(2018).A low profile shorted-patch antenna with enhanced bandwidth and reduced h-plane cross-polarization.IEEE Transactions on Antennas and Propagation,66(10),5602-5607.
MLA Liu N.-W.,et al."A low profile shorted-patch antenna with enhanced bandwidth and reduced h-plane cross-polarization".IEEE Transactions on Antennas and Propagation 66.10(2018):5602-5607.
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