Ultra-thin reflective linear and circular polarization converter for Ku band applications

Öztürk, Gökhan; Corapsiz, Muhammed Fatih

doi:10.1016/j.optcom.2022.128268

Cited by 17 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yang et al achieved linear polarization with the same PCR of 90% in the Ku-band [43]. On the contrary, some researchers exhibited a structure that achieves both linear and circular polarization, circular polarization in X-band (8-12 GHz) and linear to circular polarization in the Ku band [44]. Moreover, these studies have the limitations of being unable to attain cross-polarization at higher frequencies, such as in the K-band (18-27 GHz).…”

Section: Introductionmentioning

confidence: 99%

Wideband and wide-angle reflective metasurface for efficient linear and circular polarization conversion in X, Ku, and K bands

Ahmad,

Qureshi,

Liu

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

A single-layer wideband and wide-angle reflective metasurface exhibiting linear to cross-polarization conversion (CPC) and linear-to-circular polarization (LP-to-CP) conversion in the X, Ku, and K bands is presented in this research. The devised metasurface serves as a multifunctional platform, achieving CPC over a substantial fractional bandwidth of 64.34% (9.75-19 GHz) with remarkable efficiency exceeding 90% within the 9.75-16 GHz range, reaching a remarkable 100% at resonant frequencies of 11 GHz and 14.6 GHz. Additionally, linear-to-circular polarization conversion is achieved over a significant bandwidth of 9.54 GHz. Notably, the carefully optimized unit cell structure ensures robust polarization transformation, maintaining stability against variations in the incidence angle of up to 45° for both transverse-electric (TE) and transverse-magnetic (TM) polarizations. The proposed metasurface, characterized by its simplicity, compactness, angular stability, and multifunctionality, demonstrates the considerable potential for various microwave communications, antenna design, radar invisibility, and remote sensing device applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Wideband and wide-angle reflective metasurface for efficient linear and circular polarization conversion in X, Ku, and K bands

Ahmad,

Qureshi,

Liu

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…In pursuit of this goal, a birefringent reflective metasurface has been proposed, demonstrating the potential to achieve both CPC and LP-to-CP conversions [22]. Similarly, a square split ring resonator (SRR) metasurface has been introduced, capable of achieving both CPC and LP-to-CP conversions specifically in the Ku band [23]. Additionally, a reflective anisotropic metasurface has been successfully demonstrated, enabling multiband linear and circular polarization conversion with a minimum polarization conversion ratio (PCR) of 80% [24].…”

Section: Introductionmentioning

confidence: 99%

“…Another noteworthy advancement is the development of a single-layer reflective anisotropic metasurface, as described in [25], specifically designed to enable quarter-and half-wave plate operations at frequencies of 7.9 GHz and 7.1-15.3 GHz, respectively. Previous studies [22][23][24][25] have emphasized that the existing designs are confined to converting linear polarization to its corresponding polarization and facilitating LP-to-CP transformations. However, they lack the ability to convert circular polarization to its corresponding polarization or support CP-to-LP conversions for oblique incidences over a wide bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental realization of multifunctional anisotropic metasurface for efficient polarization manipulation in microwave frequencies

Qureshi,

Hu,

Basir

et al. 2023

Phys. Scr.

View full text Add to dashboard Cite

This paper presents the realization of a multifunction anisotropic metasurface capable of operating as both a half-waveplate and a quarter-waveplate in the C, X, and Ku bands. The numerical and experimental results demonstrate the metasurface is able to convert linear and circular polarizations to their respective cross-polarizations, as well as achieve linear-to-circular and circular-to-linear polarization conversions in the microwave frequency regime. Notably, the metasurface maintains high conversion efficiencies for both half-wave and quarter-wave plate operations, even when subjected to variations in the incidence angle. The underlying physical mechanism is elucidated through the analysis of eigen values, surface current distribution and the retrieval of effective physical parameters. The proposed metasurface is useful for communication and polarization manipulation devices due to its simple construction, compact size, angular stability, and multi-functionality.

show abstract

Ultra-Thin Metasurface Polarization Converter with Linear and Circular Polarization Features for RCS Applications

Alahmed Albasry,

Ozturk,

Hasar

et al. 2024

Arab J Sci Eng

View full text Add to dashboard Cite

In this study, an attractive ultra-thin metasurface (MS) converter is proposed for both K-band (18–27 GHz) and Ka-band (27–40 GHz) having the superior performance of the linear-to-linear polarization (LP-LP) conversion and the linear-to-circular polarization (LP-CP) conversion. Its operating bandwidth for the LP-LP conversion is approximately over 18.6–26.7 GHz (lower part of the K-band) with a conversion efficiency of more than 90% and over 19.55–24.8 GHz (upper part of the K-band) with a polarization conversion ratio (PCR) value of more than 99%. In addition, its operating bandwidth for the LP-CP conversion (a left-handed circular polarization (LHCP)) is nearly between 31.8 and 40.5 GHz (Ka-band) with a PCR value of more than 99%. The converter can achieve a PCR value greater than 90% for both the LP-LP and LP-CP conversions for an oblique incidence wave with an incidence angle up to $$ 40^\circ $$ 40 ∘ . The design also provides mono-static radar cross section for the 18.6–26.7 GHz frequency range, where the LP-LP conversion is provided. The proposed structure can be considered to be ultra-thin having a thickness of 1 mm corresponding to 0.075$$\lambda $$ λ in the LP-LP and 0.12$$\lambda $$ λ in the LP-CP cases concerning the center frequency. The cost-effective bandwidths (BWCEs) are 210 and 34 for the LP-LP and LP-CP conversions, respectively. Free-space experiments were carried out at X-band and Ku-band to validate our design.

show abstract

Ultra-thin reflective linear and circular polarization converter for Ku band applications

Cited by 17 publications

References 32 publications

Wideband and wide-angle reflective metasurface for efficient linear and circular polarization conversion in X, Ku, and K bands

Wideband and wide-angle reflective metasurface for efficient linear and circular polarization conversion in X, Ku, and K bands

Design and experimental realization of multifunctional anisotropic metasurface for efficient polarization manipulation in microwave frequencies

Ultra-Thin Metasurface Polarization Converter with Linear and Circular Polarization Features for RCS Applications

Contact Info

Product

Resources

About