scholarly journals Equalization of Ultra Wideband Wireless Systems Using Genetic Algorithm

10.5772/19796 ◽  
2011 ◽  
Author(s):  
Nazmat Surajudeen-Bakinde ◽  
Xu Zhu ◽  
Jingbo Gao ◽  
Asoke Nandi ◽  
Hai Li
Keyword(s):  
Genetic Algorithm ◽  
Wireless Systems ◽  
Ultra Wideband

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.

Design of ultra-wideband multilayer slant linear polarizer using a genetic algorithm

2001 ◽  
Vol 30 (2) ◽  
pp. 119-122 ◽  
Author(s):  
Y. Purushottam ◽  
R. V. Hara Prasad ◽  
V. C. Misra
Keyword(s):  
Genetic Algorithm ◽  
Ultra Wideband ◽  
Linear Polarizer

Design of a small ultra wideband antenna using a genetic algorithm approach

2015 ◽  
Author(s):  
Mohammed H. Miry ◽  
Ghaida A. Al-Suhail ◽  
Fathi Abdussalam ◽  
M. B. Child ◽  
R. A. Abd-Alhameed
Keyword(s):  
Genetic Algorithm ◽  
Ultra Wideband ◽  
Wideband Antenna ◽  
Genetic Algorithm Approach

scholarly journals Tightly Coupled Array Antennas for Ultra-Wideband Wireless Systems

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 61851-61866 ◽  
Author(s):  
Yonggang Zhou ◽  
Fuguo Zhu ◽  
Steven Gao ◽  
Qi Luo ◽  
Le-Hu Wen ◽  
...  
Keyword(s):  
Wireless Systems ◽  
Ultra Wideband ◽  
Array Antennas ◽  
Tightly Coupled
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