LOW-NOISE AMPLIFIER NO FURTHER A MYSTERY

PIN diodes could be used, for example, because the bridge and shunt resistors in a bridged-T attenuator. One more popular technique is to work with PIN diodes as terminations connected to the 0 diploma and -ninety degree ports of the quadrature hybrid. The signal to become attenuated is applied to the input port, as well as attenuated result's take