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Surface Acoustic Wave (SAW) delay lines microfabrication is outlined and its characteristics due to wet chemical etching process variation are investigated. The SAW delay lines consist of Al inter-digital transducers (IDT) on LiNbO3 substrate. It is designed with specific IDT feature size to produce SAW at predetermined central frequency, f0. The effect of the etching process onto the IDT, in particular...
This paper describes analyzing of conical antenna as an ultra-wideband structure using finite difference time domain. This paper performs finite difference time domain simulation of conical antenna with continues wave (CW) and UWB pulsed excitations. The simulation results for CW excitation are compared to simulation and measured results from published sources, the results for UWB excitation are new.
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