A Broadband Circularly Polarized Antenna With Triple-Mode Characteristics

被引：0
|
作者：
Hui, Wei [1 ]
Liu, Xuekang [1 ]
Wu, Hao [1 ]
Gao, Steven [2 ]
Wen, Lehu [2 ]
Cai, Yuanming [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
[2] Univ Kent, Sch Engn & Digital Arts, Canterbury CT2 7NT, Kent, England
来源：
2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020) | 2020年
基金：
英国工程与自然科学研究理事会;
关键词：
Circularly polarized antenna; low profile; triple-mode antenna; wideband antenna; WIDE-BAND; DIPOLE;
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 novel circularly polarized (CP) antenna based on the triple-mode characteristics is presented in this paper. First, by utilizing three resonant modes, a compact antenna element is designed to realize a wide impedance bandwidth of 80%. Then, for the purpose of obtaining broadband CP radiation, the sequential feeding method is employed in the design. By sequentially exciting four antenna elements with a progressive 90 phase shift, a wideband CP windmill-shaped antenna is developed. The proposed antenna exhibits a wide impedance bandwidth (104%), a wide axial ratio (AR) bandwidth (80%), and a low profile (0.18 lambda, lambda is the wavelength in free space at the lowest operating frequency). Such a wideband and low-profile CP antenna is a promising candidate for modern broadband CP applications.
引用
收藏
页数：4
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