Project Title: Active Duplexer
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.