Accelerated Optimization of Input Characteristics of Wideband Antennas Using Improved Trust-Region Gradient Search

2018 ◽  
Author(s):  
S. Koziel
Keyword(s):  
Trust Region ◽  
Gradient Search ◽  
Wideband Antennas

Fast Antenna Optimization Using Gradient Monitoring and Variable-Fidelity EM Models

2021 ◽  
Vol 35 (11) ◽  
pp. 1348-1349
Author(s):  
Slawomir Koziel ◽  
Anna Pietrenko-Dabrowska
Keyword(s):  
Design Optimization ◽  
Trust Region ◽  
Wideband Antennas ◽  
Accelerated Simulation ◽  
Variable Fidelity ◽  
Limited Sensitivity

Accelerated simulation-driven design optimization of antenna structures is proposed. Variable-fidelity electromagnetic (EM) analysis is used as well as the trust-region framework with limited sensitivity updates. The latter are controlled by monitoring the changes of the antenna response gradients. Our methodology is verified using three compact wideband antennas. Comprehensive benchmarking demonstrates its superiority over both conventional and surrogate-assisted algorithms.

A Review of Ultra Wideband Antennas with Band Notched Characteristics

2020 ◽  
Author(s):  
Kavneet Kaur ◽  
Ashwani Kumar ◽  
Narinder Sharma
Keyword(s):  
Ultra Wideband ◽  
Wideband Antennas
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