Results 31 to 40 of about 21,674 (216)
Xi'an Gongcheng Daxue xuebao, 2022 To study the frequency response characteristics of knitted fabric-based frequency selective surface (FSS), high-pass knitted fabric-based FSS were designed and prepared. The electromagnetic transmission characteristics were tested in a microwave anechoic
YANG Zhuli +5 more
doaj +1 more source
Low-Profile Higher-Order Narrowband Bandpass Miniaturized-Element Frequency-Selective Surface
IEEE Transactions on Antennas and Propagation, 2023 We present a low-profile miniaturized-element frequency-selective surface (MEFSS) with narrowband, second-order bandpass response. The miniaturized-element unit cell comprises a capacitively loaded parallel LC unit cell resulting in a narrowband bandpass
Waseem Afzal +3 more
semanticscholar +1 more source
A dual tuned Complementary Structure Frequency Selective surface for WLAN applications
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsA single substrate layer double metallic plane frequency selective surface (FSS) is designed with miniaturized electrical elements and two tunable pass-bands enabling Wireless Local Area Network applications. Each FSS periodic cell consists of a metallic
Arup Ray +4 more
doaj +1 more source
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
Quasi-Elliptic Bandpass Frequency Selective Surface Based on Coupled Stubs-Loaded Ring Resonators
IEEE Access, 2020 In this paper, a novel design of frequency-selective surface (FSS) based on coupled stubs-loaded ring resonators (SLRRs) is proposed. The proposed FSS exhibits quasi-elliptic bandpass filtering characteristic at C-band.
Rui-Xiang Liao +6 more
doaj +1 more source
Advanced Science, EarlyView.Matrix stiffness directs mesenchymal stem cell lineage commitment through PIEZO1‐dependent activation of the SP1/STC2 pathway. Stiff matrices favor osteogenesis and suppress adipogenesis, whereas the loss of PIEZO1 function impairs early bone formation. STC2 retains lineage‐regulatory activity even when PIEZO1 is inactive.
Shuo Zhang +12 more
wiley +1 more source
Two-Dimensional Analogies to Frequency-Selective Surfaces (FSS) on the Graphene Sheet [PDF]
Plasmonics, 2015 In this paper, we propose that two-dimensional analogies to frequency-selective surfaces (FSS) can be achieved on graphene surfaces based on transformation optics. The analogies to representative FSS structures, including the anti-reflecting coating (ARC) and the high-reflecting coating (Bragg reflector), have been investigated through both analytical ...
Zhu, Bofeng +7 more
openaire +3 more sources
Advanced Science, EarlyView.This work presents a clinically deployable simultaneous PET/MRI workflow which integrates hyperpolarized 13C imaging of metabolism and extracellular pH with [18F]FMISO PET to characterize hypoxia, acidosis, and metabolic reprogramming in feline sarcoma.
Martin Grashei +17 more
wiley +1 more source
Design of a Compact Passband Frequency Selective Surface with Stable Resonance
International Journal of Antennas and Propagation, 2017 We propose a compact planar passband frequency selective surface (FSS) operating at the resonance frequency of 3.81 GHz. The proposed FSS is composed of single layer of the Archimedean spiral type with the interdigital capacitance between the corners of ...
Samineni Peddakrishna +3 more
doaj +1 more source
Absorptive/Transmissive Frequency Selective Surface With Wide Absorption Band
IEEE Access, 2019 An absorptive/transmissive frequency selective surface (ATFSS) with absorption bands at both sides of a passband is presented. Equivalent circuits of the ATFSS that consists of a lossy frequency selective surface (FSS) and a lossless FSS were modeled. To
Qingxin Guo +4 more
doaj +1 more source