Linear-to-Circular Polarization Reflector With Transmission Band

被引：42
作者：
Orr, Robert [1 ]
Goussetis, George [2 ]
Fusco, Vincent [1 ]
Saenz, Elena [3 ]
机构：
[1] Queens Univ Belfast, Inst Elect Commun & Informat Technol, Belfast BT3 9DT, Antrim, North Ireland
[2] Heriot Watt Univ, Edinburgh EH14 4AS, Midlothian, Scotland
[3] European Space Agcy, ESA ESTEC, NL-2200 AG Noordwijk, Netherlands
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2015年 / 63卷 / 05期
关键词：
Circular polarization (CP); frequency selective surfaces (FSSs); quasi-optical diplexers; reflection polarizer; reflector antennas; FREQUENCY-SELECTIVE SURFACE; CONVERTER; ARRAYS; DESIGN; RING;
D O I：
10.1109/TAP.2015.2405088
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 new class of polarizing surface is proposed that in a given frequency band can reflect incident linearly polarized waves with circular polarization (CP) while at other frequencies is transparent allowing incident waves to transmit unaffected. The proposed structure consists of two parallel anisotropic frequency selective surfaces (FSSs) that independently interact with TE or TM waves, respectively. The FSSs are designed to, respectively, transmit TE and TM waves within the same transmission frequency range, so that the combined structure is transparent to all polarizations in this band. Likewise, the two arrays are designed to, respectively, reflect TE and TM incident waves in a common reflection band, so that all polarizations are fully reflected in this range; if the separation of the two arrays is such that the TE and TM components of an incident wave polarized at slant 45 degrees experience a 90 degrees phase shift, reflection will occur in CP. The concept and performance limitations are theoretically investigated using transmission line theory as well as full wave results. The predicted performance is validated by means of experimental results on a fabricated prototype. The proposed structure is pertinent for employment as a quasi-optical diplexer in CP dual-band systems such as reflector antennas.
引用
收藏
页码：1949 / 1956
页数：8
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