Wideband Planar Sleeve Dipole Antenna With Back Cavity

被引：14

作者：

Zhao, Chengwei ^{[1
,2
]}

Li, Xiaoping ^{[1
,2
]}

Sun, Chao ^{[1
,2
]}

Huang, He ^{[1
,2
]}

Zhang, Zheng ^{[1
,2
]}

机构：

[1] Xidian Univ, Key Lab Informat & Struct Efficiency Extreme Envi, Minist Educ China, Xian 710071, Peoples R China

[2] Xidian Univ, Sch Aerosp Sci & Technol, Xian 710071, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2020年 / 19卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Back cavity; low profile; planar dipole; wideband antenna; LOW-PROFILE; DESIGN;

D O I：

10.1109/LAWP.2020.2984687

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 novel, simple-structure, low-profile, wideband antenna with back cavity is proposed in this letter. The wideband antenna is derived from the planarization improvement of the sleeve dipole antenna. The antenna mainly consists of five parts, which are planar sleeve dipole, L-shaped feeding strip, substrate, coaxial feed, and back cavity. The planar sleeve dipole and the L-shaped strip are printed on both sides of the substrate plate. To verify the design, the antenna is processed and measured with the size of 0.5 lambda(L) x 0.5 lambda(L) x 0.16 lambda(L), where lambda(L) is the wavelength of the low frequency. From the measured results, the proposed antenna achieves a wide impedance bandwidth of 81.4% from 3 to 7.12 GHz with a return loss more than 10 dB. Moreover, the measured gain of the antenna is 6-9.5 dBi, and the radiation pattern is very stable over the entire frequency bandwidth.

引用

页码：959 / 963

页数：5

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