A novel single-layer frequency selective surface for gain enhancement of SWB antennas

2016 ◽  
Vol 58 (8) ◽  
pp. 2030-2035 ◽  
Author(s):  
Farooq A. Tahir
Keyword(s):  
Single Layer ◽  
Frequency Selective Surface ◽  
Gain Enhancement ◽  
Frequency Selective

A novel design of ultra-wide stop-band single-layer frequency selective surface using square-loop and cross

2020 ◽  
pp. 1-10
Author(s):  
Amit Birwal ◽  
Sanjeev Singh ◽  
Binod Kumar Kanaujia
Keyword(s):  
Stop Band ◽  
Single Layer ◽  
Frequency Selective Surface ◽  
Transverse Magnetic ◽  
Unit Cell ◽  
Gain Enhancement ◽  
Single Side ◽  
Frequency Selective ◽  
Novel Design ◽  
Excellent Stability

Abstract In this paper, a novel design of ultra-wide stop-band single-side single-layer frequency selective surface (FSS) is presented. The unit cell of the proposed FSS is designed using the combination of conventional square loop and cross (CSLC). To enhance the bandwidth of this structure, an additional cross is inserted in all the four quadrants of CSLC. The stop-band transmission bandwidth assuming −10 dB threshold is found to be 128.94% (2.16–10 GHz) which is 34.33% more as compared to the bandwidth of CSLC. The unit cell with a dimension of 16 × 16 mm2 is printed on one side of an FR4 substrate. The design is fabricated and the measured results are found to be in good agreement with the simulated results. The design provides excellent stability for both transverse magnetic and transverse electric polarizations. The design is very flexible, where any resonant frequency can be achieved by changing the length of unit cell. The design is useful in many applications such as antenna gain enhancement, electromagnetic wave shielding for Wi-Fi/5G systems, and other Internet of Things-based applications.

Angle and polarization-independent miniaturized UWB FSS design

2021 ◽  
pp. 1-9
Author(s):  
Yanning Yuan ◽  
Yuchen Zhao ◽  
Xiaoli Xi
Keyword(s):  
Design Method ◽  
Incident Angle ◽  
Stop Band ◽  
Single Layer ◽  
Wireless Systems ◽  
Frequency Selective Surface ◽  
Ultra Wideband ◽  
Band Frequency ◽  
Gain Enhancement ◽  
Polarization Independent

Abstract A single-layer ultra-wideband (UWB) stop-band frequency selective surface (FSS) has several advantages in wireless systems, including a simple design, low debugging complexity, and an appropriate thickness. This study proposes a miniaturized UWB stop-band FSS design. The proposed FSS structure consists of a square-loop and metalized vias that are arranged on a single layer substrate; it has an excellent angle and polarization-independent characteristics. At an incident angle of 60°, the polarization response frequencies of the transverse electric and magnetic modes only shifted by 0.003 f0 and 0.007 f0, respectively. The equivalent circuit models of the square-loop and metallized vias structure are analysed and the accuracy of the calculation is evaluated by comparing the electromagnetic simulation. The 20 × 20 array constitutes an FSS reflector with a unit size of 4.2 mm × 4.2 mm (less than one-twentieth of the wavelength of 3 GHz), which realizes an UWB quasi-constant gain enhancement (in-band flatness is <0.5 dB). Finally, the simulation results were verified through sample processing and measurement; consistent results were obtained. The FSS miniaturization design method proposed in this study could be applied to the design of passband FSS (complementary structure), antennas and filters, among other applications.

Erratum for: Analysis of antenna gain enhancement using new frequency selective surface superstate

2016 ◽  
Vol 58 (7) ◽  
pp. 1774-1774
Author(s):  
Moufida Bouslama ◽  
Moubarek Traii ◽  
Ali Gharsallah ◽  
Tayeb Ahmed Denidni
Keyword(s):  
Frequency Selective Surface ◽  
Antenna Gain ◽  
Gain Enhancement ◽  
Frequency Selective

Dual‐band single‐layer quarter ring frequency selective surface for Wi‐Fi applications

2016 ◽  
Vol 10 (4) ◽  
pp. 435-441 ◽  
Author(s):  
David Ferreira ◽  
Iñigo Cuiñas ◽  
Rafael F.S. Caldeirinha ◽  
Telmo R. Fernandes
Keyword(s):  
Single Layer ◽  
Frequency Selective Surface ◽  
Dual Band ◽  
Frequency Selective ◽  
Ring Frequency

A Single Layer UWB Frequency Selective Surface for Shielding Application

2020 ◽  
Vol 49 (8) ◽  
pp. 4794-4800
Author(s):  
D. Kanchana ◽  
S. Radha ◽  
B. S. Sreeja ◽  
E. Manikandan
Keyword(s):  
Single Layer ◽  
Frequency Selective Surface ◽  
Frequency Selective

Novel Dual-Band Miniaturized Frequency Selective Surface based on Fractal Structures

Frequenz ◽  
2017 ◽  
Vol 71 (1-2) ◽  
pp. 57-63 ◽  
Author(s):  
Tao Zhong ◽  
Hou Zhang ◽  
Rui Wu ◽  
Xueliang Min
Keyword(s):  
Resonant Frequency ◽  
Free Space ◽  
Single Layer ◽  
Frequency Selective Surface ◽  
Anechoic Chamber ◽  
Dual Band ◽  
Fractal Structures ◽  
Frequency Selective ◽  
Good Agreement

Abstract A novel single-layer dual-band miniaturized frequency selective surface (FSS) based on fractal structures is proposed and analyzed in this paper. A prototype with enough dimensions is fabricated and measured in anechoic chamber, and the measured results provide good agreement with the simulated. The simulations and measurements indicate that the dual-band FSS with bandstop selectivity center at 3.95 GHz and 7.10 GHz, and the whole dimension of the proposed FSS cell is only 7×7 mm2, amount to 0.092λ0×0.092λ0, that λ0 is free space wavelength at first resonant frequency. In addition, the center frequencies have scarcely any changes for different polarizations and incidences. What’s more, dual-band mechanism is analyzed clearly and it provides a new way to design novel miniaturized FSS structures.

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