2019 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND USNC-URSI RADIO SCIENCE MEETING
|
2019年
关键词:
reflectarray;
frequency dispersion;
offset feed;
ring;
PATCHES;
DESIGN;
D O I:
10.1109/apusncursinrsm.2019.8888331
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:
In this paper, the effects of large angle of incidence in offset-fed reflectarray antennas using the single-layer ring is presented. When the incidence angle becomes large, the reflection phase of the ring becomes highly frequency dispersive. As a result, the normal-incidence reflection phase curve is no longer valid for designing the element to compensate the spatial phase delay. The phase error will shift the reflected beam direction and reduce the antenna gain.