FPGA-Controlled Dual-Band Multifunctional Active Frequency Selective Surface

Khalilzadegan, Amin; Malekara, Asal; Ghobadi, Changiz; Nourinia, Javad; Damya, Amin

doi:10.1109/lawp.2023.3323840

Cited by 6 publications

(1 citation statement)

References 40 publications

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“…Recent research endeavors aim to elucidate the model of low-power backscatter Internet of Things (IoT) communication systems [ 3 ] based on reconfigurable intelligent surfaces [ 4 , 5 ] within a general or specific system framework. In this communication model, low-power reconfigurable intelligent surfaces play a vital role [ 6 , 7 ]. According to the analysis of demands in IoT scenarios [ 8 , 9 ], reconfigurable surfaces such as active-frequency selective surfaces (AFSSs) should possess characteristics such as miniaturization, low power consumption, and high modulation efficiency when designed [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Active-Frequency Selective Surfaces for Low-Power Internet of Things Devices

Zhang,

Yang,

Wang

et al. 2024

Micromachines

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With the proliferation of smart devices, the Internet of Things (IoT) is rapidly expanding. This study proposes a miniaturized controllable metamaterial with low control voltage for achieving low-power and compact designs in IoT node devices. Operating at a target frequency of 2.4 GHz, the proposed metamaterial requires only a 3.3 V control voltage and occupies approximately one-third of the wavelength in size. Experimental validation demonstrates its excellent reflective control performance, positioning it as an ideal choice for low-power IoT systems, particularly in the context of miniaturized and low-power IoT node applications.

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Section: Introductionmentioning

confidence: 99%

Miniaturized Active-Frequency Selective Surfaces for Low-Power Internet of Things Devices

Zhang,

Yang,

Wang

et al. 2024

Micromachines

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High-integration multistate continuous tunable AFSS absorber/reflector based on solid-state plasma

Su,

Hu,

Qiu

et al. 2024

Optics & Laser Technology

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A broadband second-order bandpass frequency selective surface for microwave and millimeter wave application

Li,

Weng,

et al. 2024

Sci Rep

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This paper presents a frequency selective surface (FSS) with a wideband second-order bandpass response in the dual-band of microwave and millimeter wave. The overall structure consists of three layers of metal pattern and two layers of thin dielectric substrate. The top and bottom metal layers have capacitive patches with integrated curled Jerusalem cross slot resonators, while the intermediate metal layer has an inductive grid structure with cross-shaped slot resonators. The incorporated slot resonators play a pivotal role in achieving the desired transmission poles or zeros, which enable a wideband second-order filtering response in the dual-band and a quick roll-off at the passband edges, increasing the efficacy of electromagnetic shielding. To fully investigate the structure's frequency response, an equivalent circuit model of the structure is created, spanning the complete frequency range of 5–50 GHz. Physical samples are created and measured to confirm the suggested approach’s efficacy. The passband center frequencies of the FSS are found at f1 = 19.42 GHz and f2 = 42.78 GHz, and the − 3 dB bandwidth is 4.34 GHz (17.25–21.59 GHz) and 8.54 GHz (38.51–47.05 GHz), respectively. The simulation results align well with the experimental data. The transmission response rapidly transitions from the passband to the stopband at the passband boundaries.

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FPGA-Controlled Dual-Band Multifunctional Active Frequency Selective Surface

Cited by 6 publications

References 40 publications

Miniaturized Active-Frequency Selective Surfaces for Low-Power Internet of Things Devices

Miniaturized Active-Frequency Selective Surfaces for Low-Power Internet of Things Devices

High-integration multistate continuous tunable AFSS absorber/reflector based on solid-state plasma

A broadband second-order bandpass frequency selective surface for microwave and millimeter wave application

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