Analysis of terahertz wave nonlinear reflection by an array of double silicon elements placed on a metal substrate

Sydorchuk, N.; Prosvirnin, S. L.; Fan, Yi; Zhang, F.

doi:10.1088/1361-6463/ab236d

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…Traditional high‐gain antennas are mainly parabolic antennas and microstrip array antennas, which are large in size, low insensitivity, and difficult to manufacture1 1 . The metasurface provides a new solution to the shortcomings of traditional high‐gain array antennas, 2 In recent years, metasurfaces have been widely used in the microwave, millimeter‐wave, and even light wave absorbers, polarization converters, planar lenses, planar mirrors, vortex wave generators, and so on 3–6 . In the design of high‐gain antennas, gradient metasurfaces (GMs) are usually used to adjust the refraction or reflection direction of electromagnetic waves.…”

Section: Introductionmentioning

confidence: 99%

Conformal transmitarray based on metasurface fed by miniaturized filtering antenna

Song¹,

Wang²,

Mengqian³

et al. 2022

Micro & Optical Tech Letters

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To realize the requirements of 5G MIMO technology for high-performance antennas, a novel high-gain transmissive array antenna with conformal capability is designed in this study. The antenna consists of a single-layer dielectric-based conformal transmission array and a substrate-integrated waveguide filter antenna. The transmission array is composed of a cross element and spiral elements that can achieve conformal capability. Each metasurface element is a single-layer medium, and the same metasurface patches above and below are connected by four metal pillars. A filter antenna array fed by a substrate integrated with a waveguide fed by small-scale lowtemperature cofired ceramic technology is used as the feed antenna of the transmission array. The physical test results are consistent with the simulation results, and the directivity of the antenna is greatly improved. The frequency range where the reflection coefficient S11 is less than −10 dB is 26.6-29.1 GHz. At the center frequency of 28.0 GHz, the gain of the conformal antenna array is greatly improved, and the peak gain is increased from 8.2 to 24.5 dB. The sidelobe level is substantially suppressed. Its high gain and beamforming characteristics make it have a high application value in 5G MIMO technology.

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Section: Introductionmentioning

confidence: 99%

Conformal transmitarray based on metasurface fed by miniaturized filtering antenna

Song¹,

Wang²,

Mengqian³

et al. 2022

Micro & Optical Tech Letters

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Bistable Properties of Nonlinear Planar Metamaterials : (Invited)

Prosvirnin

Sydorchuk

2019

2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)

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A Reconfigurable Metasurface in the Form of a Fabry-Pérot Resonator, Involving Semi-Transparent Mirrors and a Nonlinear Dielectricinsert

Antonenko,

Gribovsky

et al. 2024

Radio phys. radio astron.

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Subject and Purpose. The paper is aimed at suggesting ways for implementing electromagnetic devices that would involve a nonlinear dielectric inside the structure for concentrating electromagnetic field within it at relatively low intensities of the excitation field. A representative example is offered by a Fabry-Pérot resonator with semi-transparent mirrors and a nonlinear dielectric inside. Methods and Methodology. The paper presents a fundamentally new approach to controlling the frequency response of a metasurface, and a method for protecting electronic modules from high excitation powers. The method is based on the use of nonlinear properties of a Fabry-Pérot "resonator-capacitor" containing a nonlinear dielectric in its volume. Thus, we propose a method for creating spatial filters and antenna protecting fairings capable of active reconfiguration. Results. Analysis of the results has shown that by changing the voltage across the resonator-capacitor plates it is possible to control the degree of electromagnetic field localization in the resonator volume. The frequency response of the metasurface based on the Fabry-Pérot resonator with a nonlinear dielectric inside can be reconfigured by changing the voltage applied to the resonator mirrors. The advantages provided by electrical control of the frequency-selective characteristics include an increased efficiency and possibility of integrating digitally controllable systems into antennas. Conclusions. The use of a Fabry-Pérot "resonator-capacitor"model, with a nonlinear dielectric inside, in the capacity of a reconfigurable metasurface, else as a power limiter in a variety of devices, has sufficient prospects for application in microwave transmitting systems. A special area of application for the reconfigurable Fabry-Pérot resonators is creation of broadband receive antenna systems for direction- finding. In essence, the proposed Fabry-Pérot resonator is a reflective antenna array with an ability to exhibit, conceal or alter its electrodynamic properties according to a certain algorithm. This opens up prospects for its application in "friend-or-foe" recognition systems, reflective beacons, navigation systems, etc.

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Analysis of terahertz wave nonlinear reflection by an array of double silicon elements placed on a metal substrate

Abstract: We demonstrate simulation results of nonlinear reflection of intensive terahertz radiation from a silicon-on-metal metasurface involving an excitation of a high-Q trapped mode resonance. Conditions are presented to observe the effects of bistability and hysteresis of nonlinear reflection.

Cited by 3 publications

References 21 publications

Conformal transmitarray based on metasurface fed by miniaturized filtering antenna

Conformal transmitarray based on metasurface fed by miniaturized filtering antenna

Bistable Properties of Nonlinear Planar Metamaterials : (Invited)

A Reconfigurable Metasurface in the Form of a Fabry-Pérot Resonator, Involving Semi-Transparent Mirrors and a Nonlinear Dielectricinsert

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