Wideband Shorted Patch Antenna Under Radiation of Dual-Resonant Modes
Liu, Neng-Wu; Zhu, Lei; Choi, Wai-Wa; Zhang, Xiao
AbstractA novel design concept of enhancing the impedance bandwidth of a single-layer shorted microstrip patch antenna (MPA) is proposed under simultaneous radiation of the one-and three-quarter wavelength resonant modes (TM0,1/2 and TM0,3/2 modes). Initially, a conventional MPA with the shorting wall is studied to demonstrate that none of the redundant modes can be excited between the dual-resonant modes. Then, a pair of shorting pins are appropriately installed underneath the patch to progressively turn up the resonant frequency of TM0,1/2 mode without significant influence on that of TM0,3/2 mode. After that, a V-shaped slot is etched out on the patch to dramatically reduce the resonant frequency of TM0,3/2 mode with little effect on that of TM0,1/2 mode. With the use of these arrangements, the dual-desired radiative resonant modes are gradually moved in proximity to each other, thus widening the impedance bandwidth under emergence of dual resonant poles. In order to validate the principle and design method, the proposed antenna is designed, fabricated, and measured. The measured results demonstrate that the impedance bandwidth of the proposed shorted patch antenna has been extended to about 11.8%, and it is about 1.82 times of 6.5% of the traditional shorted MPA. Meanwhile, the fabricated antenna exhibits other attractive performances including stable radiation pattern, same polarization, and a low-profile property with the height of 0.042 free-space wavelength.
KeywordDual resonant modes shorting pin single-layer planar inverted-F antenna (PIFA) V-shaped slot wide bandwidth
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Indexed BySCI
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000402731400002
The Source to ArticleWOS
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Cited Times [WOS]:26   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
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GB/T 7714
Liu, Neng-Wu,Zhu, Lei,Choi, Wai-Wa,et al. Wideband Shorted Patch Antenna Under Radiation of Dual-Resonant Modes[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,2017,65(6):2789-2796.
APA Liu, Neng-Wu,Zhu, Lei,Choi, Wai-Wa,&Zhang, Xiao.(2017).Wideband Shorted Patch Antenna Under Radiation of Dual-Resonant Modes.IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,65(6),2789-2796.
MLA Liu, Neng-Wu,et al."Wideband Shorted Patch Antenna Under Radiation of Dual-Resonant Modes".IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 65.6(2017):2789-2796.
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