Dual-frequency circularly polarized antennas based on stacked monofilar square spirals

被引：17

作者：

Laheurte, JM ^{[1
]}

机构：

[1] Univ Nice Sophia Antipolis, Lab Elect Antennes & Telecommun, Nice, France

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2003年 / 51卷 / 03期

关键词：

circular polarization; dualband; sequential rotation; spiral antennas;

D O I：

10.1109/TAP.2002.807422

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：

Two radiating spirals stacked on a foam substrate are used-in the design of a circularly-polarized antenna designed to respect new bandwidth constraints resulting from the emergence of multimedia services in satellite communications. Orthogonal circular polarizations are required for up and down links over large frequency bandwidths. In the single antenna, 4 to 5% AR bandwidths are observed in a large beamwidth for both bands. This AR bandwidth increases appreciably (24 to 31%) when two antennas are combined in a sequentially rotated configuration.

引用

页码：488 / 492

页数：5