With the AOTF-NIR spectral imaging technology is widely used in the deep space exploration

ultrasonic transducer as AOTF-NIR core components for it's operating bandwidth

spectrum diffraction efficiency and power efficiency

put forward higher requirements.It has different input impedances at different frequencies.When the drive signal source output impedance and ultrasound transducer input impedance mismatch will produce energy losses.Resulting in unable to the maximum power delivered to th

e transducer

so that the AOTF-NIR spectroscopy diffraction efficiency is reduced

affecting spectral sensitivity.The article by ADS simulation and experimental testing

applied on filter network theory and used LC lossless energy storage element and designed one kind of bandpass broadband matching network.Finally

impedance matching network return loss

S

11

-29.8dB within the 60-120MHz bandwidth

impedance matching network power efficiency is more than 90%.By constantly fine-tuning and optimizing matching the impedance values and LC parameter is to improve the spectral diffraction efficiency and spectral diffraction efficiency is more than 90%.Improved spectral sensitivity and spectral imaging clarity within the 620-1150nm band.