科研之友
微信
新浪微博
Facebook
分享链接
摘要
In this communication, a novel compact and unidirectional circularly polarized antenna based on the crossed printed tapered slot radiation elements is proposed with the ultra-wideband operation. The antenna consists of two crossed tapered slot radiation elements, a compact dual-feed network, and a dial-shaped parasitic metallic strip. The tapered slot element is applied and investigated for wideband coverage within a compact size. By using the proposed parasitic patches, an additional resonant point is formed to improve the operation bandwidth for the low band. To enhance the directivity in the low band, a dial-shaped parasitic metallic strip is loaded on the top substrate. With the proposed structure, a compact volume of 0.33 lambda x 0.33 lambda x 0.3 lambda is obtained, where lambda is the free-space wavelength at the lowest frequency of 1.85 GHz. A prototype is fabricated and measured for validation. The overlapping bandwidth of the 10 dB impedance bandwidth and the 3 dB axial ratio bandwidth is 105.8% (1.85-6 GHz).
- 出版日期2018-12
- 单位电子科技大学
