Results 161 to 170 of about 21,674 (216)
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Towards Conformal Woven Frequency Selective Surfaces (FSS)
2015 Loughborough Antennas & Propagation Conference (LAPC), 2015One outstanding feature of a conformai array or periodic surface is its ability to conform to a surface whilst maintaining the operational electromagnetic characteristics. A simple textile Frequency Selective Surface (FSS), fabricated using weaving technique has been evaluated in terms of its transmission properties on a flat surface and curved ...
R D Seager
exaly +2 more sources
IEEE Antennas and Wireless Propagation Letters, 2023
In this letter, a design method for frequency selective surface (FSS) based on the equivalent circuit model (ECM) and deep learning is proposed. In the proposed method, the ECM depicting the target transmission characteristic is first established.
Riqiu Cong +4 more
semanticscholar +1 more source
In this letter, a design method for frequency selective surface (FSS) based on the equivalent circuit model (ECM) and deep learning is proposed. In the proposed method, the ECM depicting the target transmission characteristic is first established.
Riqiu Cong +4 more
semanticscholar +1 more source
A Time-Modulated Polarization-Rotating Frequency-Selective Surface
IEEE Transactions on Antennas and Propagation, 2023Modulation of electromagnetic (EM) waves can be realized by modulating the transmission or reflection coefficient of a frequency-selective surface (FSS) with time. The modulation produces multiple sideband frequency components.
M. Saikia, K. V. Srivastava
semanticscholar +1 more source
High-Roll-Off-Rate Ultrathin Polarization-Rotating Frequency Selective Surface
IEEE Antennas and Wireless Propagation Letters, 2023This letter introduces a transmission frequency selective surface (FSS) with excellent roll-off feature, ultrathin thickness, low insertion loss, and wide rejection bands.
Li-Yuan Yin +5 more
semanticscholar +1 more source
Magnetically tunable graphene patch frequency selective surface (FSS)
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015In this paper, the free-standing graphene patch frequency selective surface is modelled by an equivalent tensorial surface conductivity. The rotation angle and total transmission amplitude are then predicted for normal incidence with different values of the biasing magnetic field.
Lin Lin +3 more
openaire +1 more source
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 2023
Material sensing is crucial in many emerging applications, such as waste classification and hazardous material detection. Although existing Radio Frequency (RF) signal based systems achieved great success, they have limited identification accuracy when either RF signals can not penetrate through a target or a target has different outer and inner ...
Liqiong Chang +5 more
openaire +2 more sources
Material sensing is crucial in many emerging applications, such as waste classification and hazardous material detection. Although existing Radio Frequency (RF) signal based systems achieved great success, they have limited identification accuracy when either RF signals can not penetrate through a target or a target has different outer and inner ...
Liqiong Chang +5 more
openaire +2 more sources
All-Metal Wideband Frequency-Selective Surface Bandpass Filter for TE and TM Polarizations
IEEE Transactions on Antennas and Propagation, 2022A novel technique to design a low-cost frequency-selective surface (FSS) bandpass filter is presented in this article. Wideband polarization-independent FSS bandpass filters are predominantly made of multiple microwave dielectric substrates or ...
A. Lalbakhsh +3 more
semanticscholar +1 more source
IEEE Antennas and Wireless Propagation Letters, 2023
A two-stage beamforming technique for a wide tilt angle is proposed in this letter. The proposed structure has the potential to overcome the limitations of Butler matrix-based beamforming technique and reconfigurable frequency selective surfaces (FSS ...
R. Dutta +3 more
semanticscholar +1 more source
A two-stage beamforming technique for a wide tilt angle is proposed in this letter. The proposed structure has the potential to overcome the limitations of Butler matrix-based beamforming technique and reconfigurable frequency selective surfaces (FSS ...
R. Dutta +3 more
semanticscholar +1 more source
Highly Selective Frequency Selective Surface With Ultrawideband Rejection
IEEE Transactions on Antennas and Propagation, 2022Frequency selective surface (FSS) with ultrawide out-of-band rejection is proposed in this article. For achieving an ultrawide and high-intensity stopband, a common second-order bandpass FSS is designed and then improved by an equivalent circuit model ...
T. Hong, Shuai Guo, Wen Jiang, S. Gong
semanticscholar +1 more source
Design of Frequency Selective Surface (FSS) for 6G communications
International Science and Technology JournalWe propose a quartz-supported frequency selective surface (FSS) for 6G communication, featuring a gear-shaped metallic array on a single layer. The transmission characteristics are investigated using full-wave simulation and the equivalent circuit method.
Wafaa Ahmad Gbreil +5 more
openaire +1 more source