Patent ID: 6549091
Filing Date: 2003-04-15
Classification: H03H

Abstract:
A radio frequency (rf) antenna coupler comprising:a first input terminal port for connection with a broadcast communications antenna; a first output terminal port for connection with a broadcast communications receiver; and a second output terminal port for connection with a navigational receiver, wherein said broadcast communications antenna can be simultaneously used by both said broadcast communications receiver and said navigational receiver;a first rf path to interconnect said input terminal port with said first output terminal port, independently of any other connection to said antenna coupler; a second rf-path to interconnect said input terminal port with said second output terminal port, independently of any other connection to said coupler, wherein said first path includes a first rf amplifier and impedance translator receiving a signal from said input terminal port; and a first dc smoothing and noise suppression circuit for receiving dc power from said second output terminal port and providing dc power to said first rf amplifier and impedance translator.