Attenuators
The Passive Attenuator is a purely resistive network that is used to weaken or “attenuate” the signal level of a transmission line while improving the impedance match, making passive attenuators the opposite of amplifiers. Passive Attenuators are electrically connected between the source supply and the load with the amount of attenuation induced being of…
As its name implies, the bridged-T attenuator has an additional resistive element forming a bridged network across the two series resistors of the standard T-pad. This additional resistive element enables the circuit to reduce the level of a signal by the required attenuation without changing the characteristic impedance of the circuit as…
The Pi-pad attenuator is so called because its basic layout and design resembles that of the Greek letter pi ( π ), meaning that it has one series resistor and two parallel shunt resistors to ground at the input and the output. The Pi-pad attenuator is another fully symmetrical purely resistive network…
The difference this time is that this type of attenuator is used in frequency dependent circuits to create loss (attenuation) in a transmission line or to match the impedances of unbalanced source and load networks. The L-pad attenuator consists of two purely resistive elements in series with each other connected across a…
An attenuator is a two port resistive network designed to weaken or “attenuate” (hence their name) the power being supplied by a source to a level that is suitable for the connected load. A passive attenuator reduces the amount of power being delivered to the connected load by either a single fixed…
Although not as common, this “T” (tee) configuration can also be thought of as a wye “Y” attenuator configuration as well. Unlike the previous L-pad Attenuator, which has a different resistive value looking into the attenuator from either end making it an asymmetrical, the T-pad attenuator is symmetrical in its…