A Single-fed Circularly Polarized Using Water Substrate Patch Antenna with Small Size Low-Profile and Broadband

被引：0
|
作者：
Wang, Dong [1 ]
Geng, Junping [1 ]
Jin, Ronghong [1 ]
Liang, Xianling [1 ]
Zhu, Weiren [1 ]
Liu, Liang [1 ]
Qi, He [1 ]
Xu, Yunxiao [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China
来源：
2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING | 2017年
关键词：
UHF band; small size; broadband; water substrate; patch antenna;
D O I：
暂无
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 single-feed circularly polarized (CP) patch antenna, characterized by small-size, low-profile and broadband, is proposed for UHF band applications (389MHz-610MHz). Its substrate, made up of water and rogers4003a, will greatly reduce the value of Q, so it can achieve wider bandwidth. The radiation structure consists of four planar spirals, a cross shaped microstrip line, and a T-shaped dipole. The final prototype of the antenna, with an overall size of 200 mmx 200 mmx 1.732 mm (0.25 lambda(0) x0.25 lambda(0) x0.002 lambda(0) at 389 MHz) is simulated. The -10 dB bandwidth of the antenna is closed to 44%, and a 3 dB axial ratio (AR) bandwidth of 19%, the gain of this antenna can achieve to -1.5dB.
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页码：1211 / 1212
页数：2
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