Low-Profile Wideband High-Gain Folded Dipole Antenna

被引：9
作者：
Verma, Anamika [1 ]
Arrawatia, Mahima [2 ]
Kumar, Girish [1 ]
机构：
[1] Indian Inst Technol, Mumbai 400076, Maharashtra, India
[2] Indian Inst Technol Guwahati, Gauhati 781039, India
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 06期
关键词：
Broadband; folded dipole (FD); high gain; low profile; BANDWIDTH; REFLECTOR;
D O I：
10.1109/LAWP.2021.3070854
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 low-profile broadband folded dipole antenna with high gain is presented in this letter. Folded dipole antenna is utilized to reduce the height of the reflector to 0.1 lambda, without degrading the impedance bandwidth. Parasitic patches shorted to the reflector are employed to reduce the gain variation of the antenna. The vertical bar S-11 vertical bar <= -10 dB bandwidth of the antenna is from 1.18 to 4.08 GHz (110%) with a broadside gain of 9.25 +/- 1.25 dBi over the bandwidth of 1.27-4.03 GHz (103.8%). The radiation pattern variation of the antenna is small over the bandwidth. The cross-polar level is below -25 dB from 1.18 to 3.4 CHz. The dimensions of the antenna are 0.78 lambda x 0.78 lambda x 0.10 lambda, where lambda corresponds to the lowest frequency.
引用
收藏
页码：1058 / 1062
页数：5
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