Results 21 to 30 of about 254,581 (263)
Traditional Frequency Selective Surface versus Substrate Integrated Waveguide Frequency Selective Surface [PDF]
Universal Journal of Communications and Network, 2014 This paper is devoted to analysis design and fabrication of both traditional and substrate integrated waveguide (SIW) frequency selective surfaces (FSS) of square elements and square lattice. The transmission loss is studied for different angle of incidence; normal, thirty, forty five and sixty degrees.
I. El-Mongy, A. M. M. A. Allam
openaire +1 more source
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
Design, Prototyping and Measurement of a Cascaded 6-GHz Frequency Selective Surface Array
Journal of Aerospace Technology and Management, 2016 The design, prototyping, and free-space measurement of a 6-GHz Frequency Selective Surface filter is presented. The prototyping resolution of a large (A4 sheet size) Frequency Selective Surface with small loops as elements is checked, as well as the ...
Marcelo Bender Perotoni +2 more
doaj +3 more sources
A High-Selective Frequency Selective Surface With Hybrid Unit Cells
IEEE Access, 2018 In this paper, a novel frequency selective surface (FSS) is proposed. It has two metal layers and the configurations of the unit cells of these two layers are different, so-called hybrid unit cells. The designed FSS has three transmission zeros and steep
Yuhong Ma +4 more
doaj +1 more source
Frequency Selective Surface-Based Switched-Beamforming Antenna
IEEE Access, 2018 A novel switched-beamforming antenna designed using active frequency selective surfaces (AFSS) is presented. The antenna consists of two parts: a source with an omnidirectional radiation pattern and a novel active triangular frequency selective surface ...
Ghada Hussain Elzwawi +3 more
doaj +1 more source
3D Absorptive Frequency-Selective Reflection and Transmission Structures With Dual Absorption Bands
IEEE Access, 2018 This paper presents a 3D absorptive frequency-selective reflection structure (AFSR) and absorptive frequency-selective transmission structure (AFST) with one reflection/transmission band and two absorption bands.
Yufeng Yu +6 more
doaj +1 more source
Finite frequency selective surface modelling
The 8th European Conference on Antennas and Propagation (EuCAP 2014), 2014 In this paper we describe the development of an electromagnetic modelling technique to investigate edge illumination effects on finite size FSS performance. The work extends the commonly used unit cell approach and models the FSS as a linear array with Gaussian beam excitation.
Dickie, Raymond +2 more
openaire +3 more sources
IEEE Access, 2021 A 3-D frequency-selective rasorbers (FSR) with wide absorption bands at both sides of the transmission window based on stepped impedance resonator (SIR) is presented and investigated in this article.
Yihao Wang +3 more
doaj +1 more source
Novel 4‐bit second‐order multifunction frequency selective surface
IET Microwaves, Antennas & Propagation, 2021 An innovative four‐bit second order multifunction active frequency selective structure controlled via four PIN diodes with nine different combinations is introduced . The proposed design is equipped with electromagnetic switching, frequency switching and
Gulab Shah +3 more
doaj +1 more source
Frequency Selective Surface With Two Quasi-Independent Notch Frequencies
IEEE Access, 2019 A double-layer frequency selective surface (FSS) built on FR4 substrate exhibiting two notch frequencies in the 0-10-GHz range is introduced. Recently published examples demonstrate that further research needs to be undergone for obtaining separate ...
Ladislau Matekovits +2 more
doaj +1 more source