Project Title:    Active Duplexer

Advisor:            Dr. S.N. Prasad


The objective of my Senior project will be to design an active duplexer for a wireless CDMA communication system that operates at 1.9GHz. A PCS system already exists and is incorporating an active duplexer, but my project will be to improve the response of the current design.  At the present time the system is using two separate DC voltages to bias the amplifiers.  One of my goals will be to use a unipolar power supply, or in other words just one DC voltage to bias the amplifiers.  Another one of my goals will be to incorporate the existing bias-T's onto the circuit board.