Results 1 to 10 of about 6,614,970 (338)

Low Profile Dual Linearly Polarized 1-bit Transmitarray Exploiting Two Metallic Layers

IEEE Access
A novel azimuth-independent dual linearly polarized (LP) transmitarray (TA) based on a polarization rotator is presented. The exploitation of either right-handed circularly polarized (RHCP) or left-handed CP (LHCP) scattered field is at the basis of the ...
Francesco Alessio Dicandia, Simone Genovesi   +1 more
doaj   +1 more source

Independently Tunable Closely Spaced Triband Frequency Selective Surface Unit Cell Using the Third Resonant Mode of Split Ring Slots

IEEE Access, 2021
In this paper, a tunable triband frequency selective surface unit cell based on varactor-loaded split ring slots is presented. By using the third resonant mode, a considerable mutual coupling reduction between adjacent ring slots is obtained ensuring ...
Henry Fabian-Gongora, Alexander E. Martynyuk, Jorge Rodriguez-Cuevas, Lourdes Martinez-Lopez, Rosalba Martinez-Lopez, Jose I. Martinez-Lopez   +5 more
doaj   +1 more source

Design of Square Patch-Strip Bandpass FSS Using Equivalent Circuit Model [PDF]

مجله مدل سازی در مهندسی, 2015
This paper uses an analytical formulas to estimate frequency response for the Square metal patch and strip periodic cells. Analytical expressions for frequency response are verified by fullwave simulations.
mahmoud fallah, محمدهاشم واجد سمیعی   +1 more
doaj   +1 more source

3D FREQUENCY SELECTIVE SURFACES

Progress In Electromagnetics Research C, 2012
A novel 3D Frequency Selective Surface (FSS) architecture based on a circular ring unit element is presented. The circular ring was made 3D by creating a cylindrical element of a certain length, adding an extra degree of freedom into the structure. The length of the cylinder is shown through electromagnetic simulation to have a signiflcant efiect on ...
Saidatul Norlyana Azemi, Kamran Ghorbani, Wayne S. T. Rowe   +2 more
openaire   +1 more source

A Dual-Band Metasheet for Asymmetric Microwave Transmission With Polarization Conversion

IEEE Access, 2019
A metamaterial-based planar polarization conversion screen is designed by exploiting the mutual interactions between two distinct types of resonators. The design starts from a unit cell comprising a subwavelength T-type resonator and a rectangular split ...
Safiullah Khan, Thomas F. Eibert
doaj   +1 more source

Design of Artificial Electromagnetic Materials Using ResNet‐Based Deep Learning Method

IET Microwaves, Antennas & Propagation
The design of artificial electromagnetic materials (AEMMs) depends highly on full‐wave numerical simulations or equivalent circuit model (ECM)‐assisted analysis.
Yu Xie, Yi Wang, Songran Guo
doaj   +1 more source

Textile Frequency Selective Surface

IEEE Microwave and Wireless Components Letters, 2017
Frequency selective surfaces (FSSs) are ubiquitous on rigid substrates and increasingly on flexible polymeric substrates. Here, we developed a FSS on a textile which is neither rigid nor smooth. We fabricate a textile capable of rejecting the millimeter-wave radiation in a narrowband, while retaining desirable textile properties such as flexibility and
Michael Ghebrebrhan, Francisco Aranda, Gary Walsh, David Ziegler, Stephen Giardini, Joel Carlson, Brian Kimball, Diane Steeves, Zhiyu Xia, Shiran Yu, Edward Kingsley, Ramaswamy Nagarajan, Jojit Torcedo, Richard Williams, Andrew Gatesman   +14 more
openaire   +1 more source

A polarization‐insensitive time‐modulated frequency‐selective surface for broad frequency range

IET Microwaves, Antennas & Propagation, 2022
Usually, Radar signature of an object is reduced using microwave absorber surface. Recently, another approach based on time‐modulated frequency‐selective surfaces has been developed to deceive Radar detection by selectively generating harmonics/sidebands.
Mondeep Saikia, Kumar Vaibhav Srivastava, S. Anantha Ramakrishna   +2 more
doaj   +1 more source

"Reconfigurable Plasma Frequency Selective Surface "

Proceedings of the 2025 International Symposium on Electromagnetic Theory - URSI EMTS 2025
This paper presents single- and double-layer reconfigurable frequency selective surfaces (FSS) for high-power microwave (HPM) shielding, utilizing plasma as an active element. Unlike conventional FSS, plasma-based design enables tunable filtering by adjusting plasma density or shape, reducing the need for extensive structural modifications.
Varikuntla, Krushna Kanth; id_orcid 0000-0002-5749-9530, Abbasi, Muhammad Ali Babar; id_orcid 0000-0002-1283-4614, Yurduseven, Okan; id_orcid 0000-0002-0242-3029   +2 more
openaire   +2 more sources

A miniaturised frequency selective rasorber with wide transmission band

IET Microwaves, Antennas & Propagation
This paper demonstrates a miniaturised frequency selective rasorber (FSR) that incorporates meander cross‐rings to realise a wide transmission band. The FSR comprises a resistive layer and a bandpass frequency selective surface (FSS), which are separated
Ruofeng Xu, Jing Wang, Xianglin Kong, Bingmei Zhang, Jun Wang, Shengjun Zhang, Xiaochun Liu, Lei Zhao   +7 more
doaj   +1 more source