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Absorptive Reflectionless Filters, Guy Barry Lemire
Absorptive Reflectionless Filters, Guy Barry Lemire
Dissertations and Theses
For many applications requiring some sort of signal filtering or signal conditioning, the filter requirements are usually approached with a single purpose in mind, which is to maximize both passband signal amplitude and stop band signal attenuation to the load with little to no thought given to what happens to the stop band signal energy. Many conventional filters have very poor impedance matching in the stopband resulting in reflected energy or large return loss (S11). This reflected energy can then cause interactions with adjoining system components which do not in general respond well to spurious reflected energy and …