期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 60, 期 6, 页码 3007-3011出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2012.2194659
关键词
Circular polarization; cross polarization; frequency selective surfaces; impedance sheets; linear polarization; periodic structures
资金
- Fonds quebecois de la recherche sur la nature et les technologies (FQRNT)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- MacDonald Dettwiler and Associates Ltd. (MDA)
A circular polarizer is a single layer or multi-layer structure that converts linearly polarized waves into circularly polarized ones and vice versa. In this communication, a simple method based on transmission line circuit theory is proposed to model and design circular polarizers. This technique is more flexible than those previously presented in the way that it permits to design polarizers with the desired spacing between layers, while obtaining surfaces that may be easier to fabricate and less sensitive to fabrication errors. As an illustrating example, a modified version of the meander-line polarizer being twice as thin as its conventional counterpart is designed. Then, both polarizers are fabricated and measured. Results are shown and compared for normal and oblique incidence angles in the planes phi = 0 degrees and phi = 90 degrees.
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