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US 2008/0076360 A1Published application
Apparatus for combining two radios on a single antenna
AssigneeNorthrop Grumman Corporation
InventorMichael Thomas Curtin
Life of this patent
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Abstract
An apparatus comprises first and second radios, an antenna, a four-port combiner connected between each of the first and second radios and the antenna, a complex vector modulator for producing a correction signal in response to a sample signal and an error signal, a first switch for routing the sample signal to the complex vector modulator and for routing the correction signal to one of the first and second radios, and a second switch for routing the error signal to the complex vector modulator.
Claims9
An apparatus comprising:
- first and second radios;
- an antenna;
- a four-port combiner connected between each of the first and second radios and the antenna;
- a complex vector modulator for producing a correction signal in response to a sample signal and an error signal;
- a first switch for routing the sample signal to the complex vector modulator, and for routing the correction signal to one of the first and second radios;
- and
- a second switch for routing the error signal to the complex vector modulator.
4 more elements
An apparatus comprising:
- first and second radios;
- an antenna;
- a four-port combiner connected between each of the first and second radios and the antenna, wherein the four-port combiner produces a sample signal;
- a complex vector modulator for producing a correction signal in response to the sample signal and an error signal;
- a first switch for routing the correction signal to one of the first and second radios;
- and
- a second switch for routing the error signal to the complex vector modulator.
4 more elements
An apparatus comprising:
- first and second radios;
- an antenna;
- a four-port combiner connected between each of the first and second radios and the antenna, wherein the four-port combiner produces a sample signal;
- a complex vector modulator for producing a correction signal in response to the sample signal and an error signal;
- a circulator for routing the correction signal to the four-port combiner;
- and
- a switch for routing the error signal to the complex vector modulator.
4 more elements
Dependencies are inferred from the claim text.