CST – Computer Simulation Technology

Transient Response Optimization of Ultra Wideband Antennas (Using Particle Swarm Optimization)
Petr Cerný, Miloš Mazánek, Petr Piksa, Vratislav Sokol, Tomáš Korínek
First European Conference on Antennas and Propagation, 2006. EuCAP 2006.
6-10 Nov. 2006
1 - 4
For some ultra wideband applications (i.e. radar, positioning, etc.), it is crucial to know the transient responses of antennas. Optimization process searches for the dipole shape, which accomplishes two required parameters - namely good matching and minimal distortion. The dipoles have derivative characteristics. The distortion is evaluated from the derivative of the excitation impulse with the radiated impulse. The particle swarm optimization method was used in the process of optimization. This method was implemented in MATLAB®, where the antenna structure is generated. The antenna is subsequently simulated in the CST Microwave Studio®. The optimized ultra wideband dipole is perfectly matched and minimally distorts the applied signal.

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