High-Efficiency and Wide-Frequency-Ratio Dual-Band Slot Patch Antenna Utilizing the Perturbed TM02 Modes

被引：10
作者：
Ou, Jun-hui [1 ,2 ]
Andrenko, Andrey S. [1 ,2 ]
Li, Yuanxin [1 ,2 ]
Zhang, Quanqi [1 ,2 ]
Tan, Hong-Zhou [1 ,2 ]
机构：
[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Guangdong, Peoples R China
[2] SYSU CMU Shunde Int Joint Res Inst, Shunde 528300, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Arc-shaped slot; dual band; extended frequency ratio range; slot patch antenna; TM02; mode; CIRCULAR MICROSTRIP ANTENNA;
D O I：
10.1109/LAWP.2018.2803775
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a high-efficiency, dual-band slot patch antenna with a wide frequency ratio range. An arc-shaped slot is introduced into a circular patch to perturb the surface current distribution. By introducing a novel asymmetric feed configuration to the slot antenna, three perturbed TM11 modes and two perturbed TM02 modes are available for flexible modes selection. A wide frequency ratio ranging from 1.13 to 2.12 can be achieved by proper modes collocation and size tuning of the slot. To further improve the radiation efficiency, an air substrate is introduced. All selected modes show high radiation efficiencies from 88% to 95% and peak gains from 8.4 to 9.5 dBi in the measurement. Good agreement can be found between the simulated and measured data.
引用
收藏
页码：579 / 582
页数：4
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