Antenna coupler
AssigneeCommunications Systems International, Inc.
InventorsDoug Spurell, Grant Shewchuk
Life of this patent
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Abstract
This invention relates broadly to rf coupling circuits enabling any platform-mounted antenna system and its associated standard broadcast-communications radio receiver, to also be used in conjunction with a navigational receiver. An exemplary embodiment of the invention is an antenna coupler for coupling a broadcast communications antenna with a broadcast communications receiver and a navigation receiver. The coupler includes independent rf paths for coupling the broadcast communications antenna to the broadcast communications receiver and to the navigation receiver.
Claims21
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.
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 second path includes a second rf amplifier and impedance translator receiving a signal from said input terminal port;
- and
- a second dc smoothing and noise suppression circuit for receiving dc power from said second output terminal port and providing dc power to said second rf amplifier and impedance translator.
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,
- a second input terminal port for connection with a GPS antenna;
- a third rf path to interconnect said second input terminal port with said second output terminal port;
- and,
- a third dc smoothing and noise suppression circuit for receiving dc power from said second output terminal port and providing dc power to said third rf amplifier and impedance translator.
Dependencies are inferred from the claim text.