Results 91 to 100 of about 2,644 (218)

A Dual Layer Frequency Selective Surface Reflector for Wideband Applications [PDF]

Radioengineering, 2016
A dual-layer, bandstop frequency selective surface (FSS) is presented in this paper for wideband applications. Each layer uses patch type FSS with slots for miniaturization and are cascaded with an air gap in between.
A. Chatterjee, S. K. Parui
doaj  

Single- and Multi-Stopband Reconfigurable FSS [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
In this work, a reconfigurable frequency-selective surface (FSS) with a very simple biasing network that offers singleor multi-band response is presented. The proposed structure is formed by the V-shaped elements on a single-sided dielectric substrate. A
Thayuan Rolim de Sousa, Deisy Formiga Mamedes, Juliete da Silva Souza, Valdemir Praxedes da Silva Neto   +3 more
doaj   +1 more source

Sleep Deprivation in Mice: Looking Beyond the Slow Wave Rebound

Journal of Sleep Research, Volume 35, Issue 3, June 2026.
ABSTRACT Sleep is a fundamental process supporting the dynamic regulation of neural function. Emerging methods have proposed that the aperiodic components of brain signals (such as the spectral slope, spectral intercept, and spectral knee), in addition to entropy‐based measures, offer robust empirical markers of neural states.
Tárek Zoltán Magyar, Orsolya Szalárdy, Róbert Bódizs   +2 more
wiley   +1 more source

FSS Sandwiched Dual-Frequency Reflectarray for Mobile Communication Applications

, 2023
Sandwiched frequency selective surface (FSS) is proposed as an additional reflection surface for a dual-frequency reflectarray system. The range of reflection phase for a reflectarray depends on the substrate thickness sensitively.
Jianfeng Li, Liangliang Mao, Tianling Zhang   +2 more
core   +1 more source

Compact UWB-MIMO antenna with metamaterial FSS decoupling structure

EURASIP Journal on Wireless Communications and Networking, 2017
In this paper, an UWB-MIMO antenna with frequency selective surface (FSS) decoupling structure is proposed. To realize antenna system miniaturization and integration, silicon material is applied as substrate.
Xiaoming Zhu, Xiaodong Yang, Qichao Song, Baisen Lui   +3 more
doaj   +1 more source

All‐metal wide‐angle and polarization‐independent microwave metamaterial absorber

Electronics Letters
An innovative all‐metal self‐support microwave metamaterial absorber (MMA) based on a continuous complementary split ring resonator (CSRR) array frequency selective surface (FSS) is constructed.
Shuang Wang, Lingjun Zeng, Liuyu He, Jiale Mao, Yu Chen   +4 more
doaj   +1 more source

CHARACTERIZATION OF A SUB-MM WAVE FREQUENCY SELECTIVE SURFACE ON A PERIODICALLY PERFORATED SILICON SUBSTRATE [PDF]

, 2012
We carried out measurements of optical transmission through a Frequency Selective Surface (FSS) on a silicon substrate perforated periodically with square cavities of 1 mm².
ANGEL ENRIQUE SANCHEZ COLIN
core  

Frequency Selective Surfaces with Nanoparticles Unit Cell

, 2015
The frequency selective surface (FSS) is a periodic structure with filtering performance for optical and microwave signals. The general periodic arrays made with patterned metallic elements can act as an aperture or patch on a substrate.
Yan Yan, Li Zhou, Vellaisamy A. L. Roy, Zhou, Li, Wang, Desong, Chi-Hou Chan, Roy, Vellaisamy A.L., Vellaisamy Roy, Poon, Nga Hung, Chan, Chi-Hou, Yan, Yan, Nga Poon, Desong Wang, Nga Hung Poon   +13 more
core   +1 more source

Frequency selective surface [PDF]

, 2014
Zadatak ovog diplomskog rada je teorijski obraditi temeljne principe rada frekvencijski selektivnih površina i korištenjem literature istražiti i izdvojiti karakteristične primjere FSS i mjerenja izvedenih na FSS. Potrebno je i izvesti simulacijski model
Brnja, Krešimir
core  

Investigation On The Impedance Modeling Of Combination Circle For Frequency Selective Surface (FSS) [PDF]

, 2015
This paper presents the investigation of a unit cell for combination of circle frequency selective surface (FSS). Two types of configuration for the simulation has been investigated and analyzed.
Sulaiman, Hamzah Asyrani, Meor Said, Maizatul Alice, Abd Aziz, Mohamad Zoinol Abidin, Mohd Fareq, Abd Malek, Othman , Mohd Azlishah, Md Fauzi, Noor Azamiah, Ahmad, Badrul Hisham, Suaidi, Mohamad Kadim   +7 more
core