A Planar Angled-Dipole Antenna With Quasi-Isotropic Radiation Pattern

被引:19
作者
Luo, Jia Wen [1 ]
Pan, Yong Mei [1 ]
Zheng, Shao Yong [2 ]
Wang, Shui Hong [2 ]
机构
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Peoples R China
[2] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Peoples R China
基金
中国国家自然科学基金;
关键词
Dipole antennas; Gain; Antenna radiation patterns; Antenna arrays; Antenna feeds; Radiofrequency identification; Angled-dipole antenna; isotropic antenna; pattern synthesis; SENSOR; DESIGN;
D O I
10.1109/TAP.2020.2963898
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
A planar angled-dipole antenna is investigated in this communication. The angled dipole has an intersection angle of 60 degrees, radiating quasi-isotropic pattern with a gain difference of about 6.4 dB over the entire spherical radiating surface. To improve the isotropy of the antenna, two near-field parasitic elements (NFPEs) are further introduced. The NFPEs function as supplementary radiators and they help to enhance the radiation in the weak region, decreasing the gain difference significantly to 1.57 dB. For demonstration, a prototype operating at 2.4 GHz is fabricated and measured. The prototype shows a high efficiency of 90%, and the roundness is less than 2.59 dB across the entire impedance passband (2376-2526 MHz).
引用
收藏
页码:5646 / 5651
页数:6
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