: For proper matching, the two series resistors in the "T" are always kept equal to the characteristic impedance ( Z0cap Z sub 0 ) of the circuit. 2. Bridged-T Filter
: It reduces the signal level by a specific decibel (dB) amount while keeping the input and output impedances perfectly matched to the system (e.g.,
: Unlike standard T-pads which require three changing resistors to vary attenuation, a Bridged-T only requires adjusting two resistors to change the attenuation level while maintaining matching.
The most common application is a symmetrical passive attenuator .
