A Thin and Broadband Linear-to-Circular Polarizer Based on Grid-Patch Structure for Ku-Band
| Autor: | Dong-fang Zhou, Jun-Mo Wu, Hao-ming Hu, Xue Lei |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Article Subject Frequency band business.industry Axial ratio 020208 electrical & electronic engineering Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Polarizer Polarization (waves) lcsh:HE9713-9715 Ku band law.invention Optics law 0202 electrical engineering electronic engineering information engineering Equivalent circuit lcsh:Cellular telephone services industry. Wireless telephone industry lcsh:Electrical engineering. Electronics. Nuclear engineering Electrical and Electronic Engineering business lcsh:TK1-9971 Circular polarization |
| Zdroj: | International Journal of Antennas and Propagation, Vol 2018 (2018) |
| ISSN: | 1687-5877 1687-5869 |
| Popis: | A three-layer circular polarization selective surface operating in Ku-band is proposed in this communication. We design a thin grid-patch structure to achieve linear-to-circular polarization transformation over a wide frequency band. The periodic structure could be analyzed via equivalent circuit model theory. Numerical simulations have been carried out and the prototype structures have been fabricated and experimentally validated. The axial ratio (AR) of the transmitted field remained below 3 dB over the entire bandwidth, and the 3 dB AR bandwidth is approximately 44.6%. The design has a subwavelength thickness of 6 mm (0.28λc). Besides, this design could be also applied to beam scanning antennas because of its capability in condition of large oblique incidence angle (±50 deg). |
| Databáze: | OpenAIRE |
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