A compact dual-band linear-to-circular polarization converter for X-band and Ku-band applications

被引：0
|
作者：
Undras, Anusha [1 ]
Khairnar, Vikas V. [1 ]
机构：
[1] VIT AP Univ, Sch Elect Engn SENSE, Amaravati 522237, Andhra Pradesh, India
来源：
OPTICS COMMUNICATIONS | 2024年 / 570卷
关键词：
Dual-band; Axial ratio; Bandwidth; Linear-to-circular polarization; GENERATION; ANTENNA;
D O I：
10.1016/j.optcom.2024.130890
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper introduces a compact reflective dual-band linear-to-circular polarization converter (D-LCPC). The converter unit cell consists of a modified L-shaped patch and three parallel dipoles to enable dual-band operation. It demonstrates a 3-dB axial ratio bandwidth (ARBW) ranging from 8.09 to 10.59 GHz (26.76%) for the lower band and 17.53 to 18.63 GHz (6.08%) for the upper band, specifically for y-polarized incidence. The design enables the conversion from linear polarization to right-hand circular polarization in the dual- band. Furthermore, the axial ratio remains below 1.20 dB within the frequencies of 8.27 to 10.01 GHz and 17.62 to 18.47 GHz, indicating a high efficiency of circular polarization conversion on an average of 99.5%. This innovative structure is suitable for creating circularly polarized systems for X-band and Ku-band satellite communication, especially in weather RADAR communications.
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页数：7
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