Results 71 to 80 of about 2,644 (218)

High-Performance Multiport Antenna with Frequency Selective Surface for 5G Ka-Band Applications [PDF]

This paper presents a novel multiport antenna tailored for 5G millimeter-wave (mm-Wave) applications. The proposed design features orthogonally arranged radiating elements to ensure compactness with an overall footprint of just 20 × 26 mm².
Chaudhary, Muhammad Akmal, Abbasi, Nisar Ahmad, See, Chan Hwang, Kumar, Sunil, Saber, Takfarinas, Ullah, Sadiq, Virdee, Bal S., Din, Iftikhar Ud, Abbasi, Ahmad, ud Din3, Iftikhar, Alibakhshikenari, Mohammad, Limiti, Ernesto, Elmunim, Nouf Abd, Virdee, Bal Singh, Ud Din, Iftikhar   +14 more
core   +1 more source

GA Optimisation of Crossed Dipole FSS Array Geometry [PDF]

, 2001
Crossed dipoles are used as dual polarised elements in frequency selective surface arrays but the transmission response is angle of incidence dependent. A genetic algorithm has been used to minimise the drift of the reflection band, stabilising it for a ...
Parker, Edward A., Chuprin, Andrei D., Batchelor, John C.   +2 more
core   +1 more source

A Novel Miniaturized Polarization Independent Frequency Selective Surface with UWB Response [PDF]

Radioengineering, 2018
This study presents a novel Frequency Selective Surface (FSS) design with angularly stable and polarization independent band-stop response. The presented FSS comprises of miniaturized unit cells printed on two layers of dielectric substrate.
S. Unaldi, N. B. Tesneli, S. Cimen
doaj  

A Surrogate Model for Stability Assessment of Two‐Layered Cohesive Slopes

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 10, Page 4142-4163, July 2026.
ABSTRACT This paper introduces a novel surrogate model for rapid stability evaluation of two‐layered cohesive slopes under undrained conditions. The model eliminates the need for iterative calculations and slip surface searches, allowing for fast and accurate stability assessments without reliance on advanced numerical tools. The formulation is derived
Naloan Coutinho Sampa, Humberto C. F. S. S. S. Volpato   +1 more
wiley   +1 more source

Closely spaced tri‐band frequency selective surfaces based on split ring slots

Electronics Letters, 2016
A tri‐band frequency selective surface (FSS) with close band spacing based on split ring slots for y‐polarised incident waves is investigated. The close band response is obtained by reducing the strong mutual coupling between the closely packed ...
H. Fabian‐Gongora, A.E. Martynyuk, J. Rodriguez‐Cuevas, J.I. Martinez‐Lopez   +3 more
doaj   +1 more source

A Frequency Selective Rasorber With Three Transmission Bands and Three Absorption Bands

IEEE Access, 2019
A frequency selective rasorber (FSR) with three transmission bands and three absorption bands is proposed in this paper. The FSR is constructed via cascading a lossy resistive surface and a multiple bandstop frequency selective surface (FSS) separated by
Qihui Zhou, Min Guo, Hamid Moghadas, Zhaofeng Wu, Peiguo Liu, Mojgan Daneshmand   +5 more
doaj   +1 more source

Comparisons of RCS Characteristic of Spherical Frequency Selective Surfaces with FSS Element Arrangement [PDF]

Journal of IKEEE, 2012
In this paper, we analyzed the electromagnetic characteristics of the spherical frequency selective surface with different arrangement of crossed dipole slot elements for reducing the RCS(radar cross section). The three dimensional MOM(method of moment) with RWG basis is used to analyze the proposed structure.
Ic-Pyo Hong, In-Gon Lee
openaire   +1 more source

Infrared‐Microwave Compatible Stealth Transparent Metasurface With Digital Camouflage and Hybrid Absorption‐Scattering

Nanophotonics, Volume 15, Issue 12, 25 June 2026.
Traditional metasurfaces suffer from the drawbacks of pure microwave absorption and low IR emissivity stealth, namely failing to match complex ambient backgrounds with varying IR emissivity and generating excess heat accumulation (enhanced IR thermal radiation).
Dan Liu, Yanzhao Wang, Kefeng Ji, Huanhuan Gao, Sihong Zhou, Tong Liu, He‐Xiu Xu   +6 more
wiley   +1 more source

Scattering Mitigation Frequency Selective Surface for Unidirectional Blockage Compensation

, 2022
This paper describes a concept of scattering mitigation frequency selective surface (FSS) for unidirectional blockage compensation using a single substrate frequency selective surface without modification of the obstacle.
Chang, Suho, HONG, WONBIN, Kim, Daehyeon, Choi, Jaehyun, Youn, Youngno   +4 more
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source