基于主动超表面的透射反射型可重构多功能偏振变换器

IF 3.2 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-09-07 DOI:10.1016/j.aeue.2025.156021

Niten Kumar Panda, Sudhakar Sahu, Sraddhanjali Mohapatra

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引用次数: 0

摘要

提出了一种基于P-I-N二极管的具有透射和反射模式的多功能频率可重构超表面偏振器（RMSP）。该RMSP能够将线性极化（LP）电磁波转换为C、X和Ku波段的圆极化（CP）和交叉极化（CLP）波。在没有金属衬底的情况下，RMSP被认为是只有反射模式的透射型，在P-I-N二极管的关闭和打开条件下，在7.79至11.02 GHz和8.12至11.21 GHz的频率范围内发生双频段LP-CLP转换。这种金属背衬的RMSP转换为反射型，具有转换LP-CP和LP-CLP的能力。在7.26 ~ 13.76 GHz范围内，观测到的轴比小于3db。用磁电偶极子的概念解释了极化转换及其手性。通过表面电流和传递矩阵技术对转换过程进行了验证。在正交入射下对RMSP原型进行了测试，结果表明横磁（TM）和电（TE）模式下的AR响应几乎相同。该偏振器在检测偏振变化和减小雷达截面（RCS）方面具有潜在的应用前景。该偏振器同时产生左右CP波，对通信也很有用。

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Active metasurface based transmittive and reflective type reconfigurable multifunctional polarization converter

A multifunctional P-I-N diode based frequency reconfigurable metasurface polarizer (RMSP) with transmittive and reflective modes is proposed. This RMSP is able to transform linear polarization (LP) electromagnetic (EM) waves to circular-polarization (CP) and cross-polarization (CLP) waves in C, X and Ku bands. Without a metal backing, the RMSP is considered as transmittive type having only reflection mode where a dual band LP-CLP conversion occurs within the frequency ranges 7.79 to 11.02 GHz and 8.12 to 11.21 GHz for off and on condition of P-I-N diode. This metal backed RMSP is converted to reflective type which has ability to convert LP-CP and LP-CLP. Less than 3 dB axial ratio (AR) is observed within 7.26 to 13.76 GHz. The polarization conversion and its handedness is explained using the magneto-electric (ME) dipole concept. The conversion process is verified by the surface current as well as the transfer matrix technique. A fabricated prototype of RMSP is tested for normal incidence which shows almost similar AR response for the transverse-magnetic (TM) and electric (TE) modes. This polarizer has potential applications in sensing polarization variation and reducing radar cross-section (RCS). Generation of simultaneous right and left CP waves by this polarizer is also useful for communication.

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.