Wideband and Wide-Angle Single-Layered-Substrate Linear-to-Circular Polarization Metasurface Converter

Wang, Hong Bin; Cheng, Yu Jian; Chen, Zhi Ning

doi:10.1109/tap.2019.2938683

Cited by 89 publications

(27 citation statements)

References 27 publications

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“…Several reflection and transmission type polarization converters have been investigated to transform linear or circular polarized waves to their orthogonal counterparts after transmitting or reflecting from the metasurface. Linear-to-linear 15 – 17 , circular-to-circular/linear 18 , 19 and linear-to-circular 20 , 21 polarization converters are among the reported literature. Double U-shaped patches 22 , H-shaped patches 23 , Split Ring Resonator 7 and other shapes metasurface-based structures have been investigated to achieve wideband or multiband polarization conversions.…”

Section: Introductionmentioning

confidence: 99%

Multiband and multifunctional polarization converter using an asymmetric metasurface

Pouyanfar

Nourinia

Ghobadi

2021

Sci Rep

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A compact and asymmetric multi-band reflective polarization converter metasurface has been offered in this paper. The proposed simple converter can effectively convert an incident linearly polarized EM wave to its orthogonal counterpart and circular polarized waves (RHCP and LHCP) at two frequency bands. The design consists of a square with two curves on the top right and lower left corners and a square Split Ring Resonator (SRR) responsible for linear-to-linear and linear-to-circular polarization conversions, respectively. The simulated results show that the converter successfully transforms a y-polarized incident wave to its orthogonal counterpart in a frequency range of 15.5–16.5 GHz with unity conversion at 16 GHz and circularly-polarized (RHCP) wave at 13 GHz and (LHCP) at 18 GHz, verified through the fabricated and measured sample. Wide angular stability up to 60° oblique incidence along with high efficiency reveals the good applicability of the structure. Moreover, the root cause of the cross-polarization conversion has been analyzed and confirmed through Bi-Mode Foster equivalent circuit and surface current distribution as well. Finally, a fabricated prototype is tested to validate the simulated results through measurement.

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Section: Introductionmentioning

confidence: 99%

Multiband and multifunctional polarization converter using an asymmetric metasurface

Pouyanfar

Nourinia

Ghobadi

2021

Sci Rep

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“…Hao et al reported an I-shaped structure achieving 90° polarization rotation in reflection mode with a high efficiency conversion ratio at two different frequencies for linearly polarized waves working in the microwave frequency 33 . Subsequently, a broadband reflection cross-polarization conversion was realized using cut-wire MSs in microwave and terahertz frequency bands 34 – 36 . Additionally, novel metallic helical MMs were introduced as polarizers that could achieve asymmetric, broadband circular-polarization conversion 37 .…”

Section: Introductionmentioning

confidence: 99%

Simultaneous realization of polarization conversion for reflected and transmitted waves with bi-functional metasurface

Huang

et al. 2022

Sci Rep

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Manipulating the polarizations of electroagnetic waves by flexible and diverse means is desirable for myriad microwave systems. More recently, metasurfaces have emerged as promising alternatives to conventional polarization manipulation components because the flexibility of their geometry means that they can be arbitrarily customized. In this context, a bilayered metasurface is presented to simultaneously manipulate the polarized states of reflected and transmitted microwaves. Regardless of whether an incident electromagnetic wave is x-polarized or y-polarized, the reflected and transmitted waves are converted into their orthogonal waves at the operating frequency. The designed metasurface has a high polarization conversion rate, above 90%, for both normal and oblique incidences. Experimental results verify the correctness of the simulated results. Finally, the axial ratio and surface current distributions are employed to reveal the physics of the polarization manipulation. The proposed metasurface will be beneficial in the design of flexible and versatile polarization converters, has great potential for applications in polarization-controlled devices and is believed to be extendable to higher frequency regimes.

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“…The polarization of EM wave refers to the oscillating direction of an electric field in propagation [3]. Polarization converters, for their special properties in polarization manipulation, have been applied a lot in microwave [4][5][6][7][8], terahertz [9,10], and even optical frequencies [8,11,12]. Traditional polarization converters for manipulating polarization states usually employ optical activity crystals and polymers, which have the shortcomings of high profile and bulky volumes [13,14].…”

Section: Introductionmentioning

confidence: 99%

Triple-Band Highly Efficient Multi-Polarization Converter Based on Reflective Metasurface

Yuan¹,

Hou²,

Zhang³

2021

PIER M

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In this paper, a triple-band reflective polarization converter with high efficiency for both linear-to-linear and linear-to-circular polarizations based on a metasurface is proposed, which can rotate a linearly polarized (LP) incident wave into its orthogonal direction with over 90% polarization conversion ratio (PCR) in the bands of 5.5-5.9 GHz (relative bandwidth of 7%) and 12-17.7 GHz (relative bandwidth of 38.4%). Besides, the proposed converter can also transform a linearly polarized incident wave to circularly polarized (CP) wave in the band of 6-12 GHz (relative bandwidth of 66.7%). Additionally, the performance of proposed polarization converter stays in considerable stability with the incident angle increasing 60 • in circular polarization and 30 • in linear polarization. Moreover, the physical mechanism of multiple resonances is discussed based on surface current distributions and equivalent circuit model. A prototype of the proposed converter is fabricated and measured, and the experiments and simulations are in great agreement. This polarization converter can be employed to manipulate the polarization of the signal in microwave communication.

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Wideband and Wide-Angle Single-Layered-Substrate Linear-to-Circular Polarization Metasurface Converter

Cited by 89 publications

References 27 publications

Multiband and multifunctional polarization converter using an asymmetric metasurface

Multiband and multifunctional polarization converter using an asymmetric metasurface

Simultaneous realization of polarization conversion for reflected and transmitted waves with bi-functional metasurface

Triple-Band Highly Efficient Multi-Polarization Converter Based on Reflective Metasurface

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