High operative polarization converter using metasurface consisted of dual reciprocal L-shaped graphene array

Shokati, Elnaz; Granpayeh, Nosrat

doi:10.1117/1.jnp.14.016015

Cited by 2 publications

(1 citation statement)

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“…Polarization is one of the fundamental properties of electromagnetic (EM) waves, which carries plenty of information about the scatters. Thus, the polarization modulation is significant and valuable in many aspects, such as wireless communication, [1][2][3] radar cross section reduction, [4,5] and imaging. [6,7] To process polarization information as much as possible, the devices which can manipulate multiple polarization are essential.…”

Section: Introductionmentioning

confidence: 99%

Transmission-type reconfigurable metasurface for linear-to-circular and linear-to-linear polarization conversions

Wang¹,

Wang²,

Yan³

et al. 2022

Chinese Phys. B

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In this paper, we present an transmission-type polarization conversion metamaterial(PCM) whose functions can be dynamically switched among the linear-to-circular(LTC) and linear-to-linear(LTL) polarization conversions. The proposed PCM consists of a grating, a polarization conversion surface and a reconfigurable polarization selective surface incorporated with PIN diodes. By changing the states of diodes, the PCM can achieve the reconfigurable manipulations for incident waves. The Fabry-perot (F-P) resonances excited by the PCM contribute to the polarization conversions, which are illustrated in this paper. Moreover, through establishing the F-P-like cavity model and analyzing the electric field components of the transmitted waves, the conditions for realizing LTC polarization conversion are revealed, which can guide the construction of PCM. The prototype of PCM is fabricated and measured, which can respectively achieve LTC and LTL polarization conversions within 3.31-3.56 GHz and 2.76-4.24 GHz, the polarization conversion ratio of two functions are higher than 0.95. The measured results show agreement with the simulated ones.

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Section: Introductionmentioning

confidence: 99%

Transmission-type reconfigurable metasurface for linear-to-circular and linear-to-linear polarization conversions

Wang¹,

Wang²,

Yan³

et al. 2022

Chinese Phys. B

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Single-substrate active metasurface for polarization reconfigurable omnidirectional antenna application

Yang,

Wang,

Wang

et al. 2024

Journal of Applied Physics

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In this paper, a wideband polarization reconfigurable omnidirectional antenna (PROA) based on a single-substrate active metasurface is proposed. By controlling the states of the PIN diodes, the antenna can selectively radiate an omnidirectional linearly polarized wave and an omnidirectional circularly polarized wave. The reflection coefficient, axial ratio (AR), radiation pattern, and gain of the proposed antenna have been analyzed from the perspective of simulation and measurement. The measured results show that the PROA has a wide overlapped bandwidth from 2.87 to 3.67 GHz (relative bandwidth 24.46%). To the authors' best knowledge, this is the first reported wideband PROA based on a single-substrate reconfigurable polarization converter. This study not only offers a novel approach to design PROAs, but also greatly reduces the design complexity of the feed source compared with the traditional design method of PROAs.

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High operative polarization converter using metasurface consisted of dual reciprocal L-shaped graphene array

Cited by 2 publications

References 0 publications

Transmission-type reconfigurable metasurface for linear-to-circular and linear-to-linear polarization conversions

Transmission-type reconfigurable metasurface for linear-to-circular and linear-to-linear polarization conversions

Single-substrate active metasurface for polarization reconfigurable omnidirectional antenna application

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