A filter circuit directed primarily to use in the CATV industry includes at least one frequency dependent component, such as an RF choke, capacitor or inductor, for attenuating signals over at least a portion of the frequency range of signals which pass through the filter. In a typical application, signals...http://www.google.fr/patents/US6784760?utm_source=gb-gplus-shareBrevet US6784760 - Step attenuator using frequency dependent components and method of effecting signal attenuation
Step attenuator using frequency dependent components and method of effecting ...
