Performance of electrical matching of an ultrasonic transducer to the excitation generator is analyzed. The analysis is based on a transducer measured impedance. Real power supplied to the ultrasonic transducer is one of evaluation criteria. The obtainable bandwidth as well as it’s product with a real power supplied are assigned as the alternative performance evaluation criteria. Effective band...

This work proposes a microwave angular displacement sensor with wideband matching based on impedance transformer. According to the design requirement of microstrip transformer (load-to-source 250-to-50 Ω, centre frequency 2.40 GHz) Chebyshev response, proposed is explored for high bandwidth sensitivity 11.18 MHz/degree.

A GaAs/A1GaAs traveling wave Mach-Zehnder electro-optic modulator with novel slow wave electrodes was fabricated on undoped epitaxial layers. Using appropriate electrode engineering velocity matching with matched impedance and low microwave loss was achieved. Device had a measured electrical bandwidth greater than 40 GHz at 1.55 j.un. The measured bandwidth at 1.3 j.m was 37 GHz. The mechanism ...