A REVIEW OF LOW-NOISE AMPLIFIER

PIN diodes may be utilized, such as, as the bridge and shunt resistors in the bridged-T attenuator. An additional typical technique is to use PIN diodes as terminations linked to the 0 degree and -ninety degree ports of the quadrature hybrid. The signal to be attenuated is applied to the input port, and also the attenuated result is taken in the is