Reconfigurable metasurface for multiple functions: magnitude, polarization and phase modulation

Zhou, Yulong; Cao, Xiangyu; Gao, Jun; Yang, Huanhuan; Li, Sijia

doi:10.1364/oe.26.029451

Cited by 40 publications

(18 citation statements)

References 41 publications

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“…While in the microwave band, the controllable performances of the metasurfaces can be achieved by embedding fluid metals [33,34], MEMS switches [35] or diodes [36][37][38][39] into the structures. Most recently, some multifunctional metasurfaces have been proposed based on the switchable and reconfigurable methods [40][41][42][43][44]. For example, Hong et al incorporated VO2 in the top-layer resonators and the bottom plate of the structure they designed to achieve reconfigurable transmission and reflection linear polarization conversion by controlling the temperature of VO2 [40]; Liu et al designed a galinstan-based metasurface to realize the conversion of linear polarization to cross polarization, circular polarization and elliptical polarization by using microfluidic channels to control the working state of a L-shape resonator [41].…”

Section: Introductionmentioning

confidence: 99%

“…For example, Hong et al incorporated VO2 in the top-layer resonators and the bottom plate of the structure they designed to achieve reconfigurable transmission and reflection linear polarization conversion by controlling the temperature of VO2 [40]; Liu et al designed a galinstan-based metasurface to realize the conversion of linear polarization to cross polarization, circular polarization and elliptical polarization by using microfluidic channels to control the working state of a L-shape resonator [41]. Cui et al realized a multifunctional polarization converter by embedding varactors into the metasurface, which can convert incident linear polarization wave into different polarization modes by controlling the bias voltage of the varactors [42]. However, multifunctional metasurfaces with the performances of both polarization conversion and perfect absorption are rarely reported.…”

Section: Introductionmentioning

confidence: 99%

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Reconfigurable Multifunctional Metasurface for Broadband Polarization Conversion and Perfect Absorption

Wang

Yang

et al. 2020

IEEE Access

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A reconfigurable multifunctional metasurface is proposed to realize the switching between broadband polarization conversion and perfect absorption by integrating the PIN diodes into the structure. An appropriate feed plate is designed to provide the bias voltage that controls the state of the diodes. When the diodes are in off-state, the metasurface will work in polarization conversion mode, which can convert the co-polarization wave into its cross-polarization state with polarization conversion ratio (PCR) of over 90% in the range from 2.97 to 6.03 GHz; While the diodes are in on-state, the metasurface exhibits perfect absorption with absorptivity of over 90% from 2.56 to 7.62 GHz, and the relative absorption bandwidth (RAB) reaches 99.4%. In addition, the metasurface is fabricated and measured to confirm the multifunctional performance. The proposed metasurface is expected to be applied in electromagnetic detection, stealth technology and communication system.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reconfigurable Multifunctional Metasurface for Broadband Polarization Conversion and Perfect Absorption

Wang

Yang

et al. 2020

IEEE Access

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“…Furthermore, the novel design overcomes the fundamental limitation of the chessboard structures that the reflection phase difference of (180 ± 37°) is necessary to achieve a −10 dB RCS reduction. Recently, metasurfaces based on polarization converter have been widely concerned for enhancing the RCS reduction bandwidth . In fact, for further enhancing the operating properties including the bandwidth and the strength of RCS reduction of the chessboard AMCs structure, it is necessary to explore its deep electromagnetic transmission mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, metasurfaces based on polarization converter have been widely concerned for enhancing the RCS reduction bandwidth. [28][29][30] In fact, for further enhancing the operating properties including the bandwidth and the strength of RCS reduction of the chessboard AMCs structure, it is necessary to explore its deep electromagnetic transmission mechanism.…”

Section: Introductionmentioning

confidence: 99%

Design of phase matching chessboard‐like electromagnetic metasurfaces for wideband radar cross section reduction

Chen

Shen

et al. 2019

Micro & Optical Tech Letters

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In this article, a chessboard‐like electromagnetic metasurfaces which can realize the polarization compensation and cancellation of the reflection beam in microwave region is designed and realized for wideband radar cross section (RCS) reduction. The chessboard‐like electromagnetic metasurfaces are composed of a square annular artificial magnetic conductor (AMC) combination with the Jerusalem cross AMC. Simulation and experimental results demonstrate that the chessboard‐like electromagnetic metasurfaces exhibit significantly RCS reduction over −10 dB in the frequency bandwidths 6.16‐18 GHz, and two RCS reduction peaks at 7.0 and 12.0 GHz in the considering frequency ranges for the normal incidence of an electromagnetic wave. The physical mechanisms of the RCS reduction peaks can be elucidated by the phase matching technology similar to the impedance matching technology applied to radar absorbing materials (RAMs). The basic physical property implies that RCS reduction based on the composite AMC metasurfaces can be improved greatly by introducing as many phase matching points as possible in the functional frequency bands. Considered that the phase matching is a necessary condition rather than a sufficient condition for RCS reduction of the chessboard‐like AMCs structures, other physical mechanisms of RCS reduction are also discussed by far field distribution, near field distribution and the properties of mono‐static RCS reduction.

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“…The first two of this classification cover almost all the frequency spectrum from microwaves to optics. Since, the third classification uses the controllable circuit elements, it can be only applied in microwaves . By means of control mechanisms, changing the electrical properties of the substrate or structural change of the material may cause the resonance frequency to shift .…”

Section: Introductionmentioning

confidence: 99%

Smart monopole antenna with pattern and frequency reconfiguration characteristics based on programmable metasurface

Ünal

Altıntarla

2019

Int J RF Microw Comput Aided Eng

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Metasurfaces having ultrathin and planar structure with sub‐wavelength unit cell, have recently gained significant potential for use thanks to their control capabilities over the electromagnetic waves from microwave to the visible range. The structure and the dimensions of the sub‐wavelength elements determine the electromagnetic properties, capabilities, and functionalities of the metasurfaces providing a full control of the reflected and transmitted fields and these metasurfaces are referred to as analog metasurfaces. When adjustability is added to the unit cells, programmable or digital metasurfaces are obtained, allowing us to take multiple unique functionality advantages controlled by external stimuli. In this study, we propose a metasurface structure, also known as 1‐bit coding metasurface, which is controlled depending on the “On/Off” state. The “On/Off” state is controlled by a computer program using genetical algorithm. Depending on the operating state, electromagnetic waves can be manipulated and different functionalities of the metasurfaces can be realized. The contribution and innovation of the study is the demonstration of the beam rotation, resonance frequency shift and radiation pattern reconfiguration properties of a simple monopole antenna by using controllable metasurface composed of T shaped resonator and circular patch with an operating frequency between 4.3 and 5.6 GHz.

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Reconfigurable metasurface for multiple functions: magnitude, polarization and phase modulation

Cited by 40 publications

References 41 publications

Reconfigurable Multifunctional Metasurface for Broadband Polarization Conversion and Perfect Absorption

Reconfigurable Multifunctional Metasurface for Broadband Polarization Conversion and Perfect Absorption

Design of phase matching chessboard‐like electromagnetic metasurfaces for wideband radar cross section reduction

Smart monopole antenna with pattern and frequency reconfiguration characteristics based on programmable metasurface

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