An analysis of a circular aperture antenna covered with a dielectric hemi-spherical shell radome over ground plane

2002 ◽  
Author(s):  
I.W. Id ◽  
P.S. Kooi ◽  
M.S. Leong ◽  
T.S. Yeo ◽  
X. Ma
Keyword(s):  
Spherical Shell ◽  
Ground Plane ◽  
Circular Aperture ◽  
Aperture Antenna

Circular Aperture Antenna With Conical Beam

2011 ◽  
Vol 10 ◽  
pp. 211-214 ◽  
Author(s):  
Shishan Qi ◽  
Wen Wu ◽  
Da-Gang Fang ◽  
Zhongxiang Shen
Keyword(s):  
Circular Aperture ◽  
Aperture Antenna ◽  
Conical Beam

Neural-Network-Based Multiobjective Optimizer for Dual-Band Circularly Polarized Antenna

2021 ◽  
Vol 36 (3) ◽  
pp. 252-258
Author(s):  
Tarek Sallam ◽  
Ahmed Attiya ◽  
Nada El-Latif
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Optimization Technique ◽  
Dual Band ◽  
Geometrical Parameters ◽  
Circular Aperture ◽  
Accurate Approximation ◽  
Aperture Antenna ◽  
Feed Forward Neural Network ◽  
Circularly Polarized

A multiobjective optimization (MOO) technique for a dual-band circularly polarized antenna by using neural networks (NNs) is introduced in this paper. In particular, the optimum antenna dimensions are computed by modeling the problem as a multilayer feed-forward neural network (FFNN), which is two-stage trained with I/O pairs. The FFNN is chosen because of its characteristic of accurate approximation and good generalization. The data for FFNN training is obtained by using HFSS EM simulator by varying different geometrical parameters of the antenna. A two strip-loaded circular aperture antenna is utilized to demonstrate the optimization technique. The target dual bands are 835–865 MHz and 2.3–2.35 GHz.

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