A Transmittive-type Metasurface for Dual-band Linear to Circular Polarization Conversion

被引：2
作者：
Chandra, Madhavi [1 ]
Ghosh, Sambit Kumar [1 ]
Thottappan, M. [1 ]
Bhattacharyya, Somak [1 ]
机构：
[1] IEEE, Piscataway, NJ 83757 USA
来源：
2022 IEEE MICROWAVES, ANTENNAS, AND PROPAGATION CONFERENCE, MAPCON | 2022年
关键词：
Satellite communication; dual-band; metasurface; circular-polarization converter; split-ring resonator (SRR); transmittive-type; BROAD-BAND; CONVERTER;
D O I：
10.1109/MAPCON56011.2022.10047169
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, a transmittive-type dual-band linear (LP)-to-circular Polarization (CP) converter has been reported. The structure can convert the incident LP wave into right-handed circularly polarized wave in two non-adjacent frequency ranges of C and Ku bands. It bears a tri- layer configuration of three concentric square shape split ring resonators having slits oriented along 45 degrees with each other. The simulated results show that the axial ratio of the proposed converter is under 3-dB over the frequency ranges of 4.07-4.15 GHz and 14.19-14.51 GHz. The ellipticity of the structure is 0.98 and -0.99 at 4.1 GHz and 14.3 GHz, respectively; thereby confirming the right-handed CP nature of the transmitted wave. This transmittive-type metasurface can be easily mountable to a simple dual-band LP antenna to obtain the desired dual-band CP wave for satellite communication system. The structure has the periodicity of lambda/5 while maintaining thickness of lambda/6.6 w.r.t. the center frequency of the first conversion band.
引用
收藏
页码：1674 / 1679
页数：6
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