Inventors:
Robert C. Gipe - Cheverly MD
William E. Engelkemier - Beltsville MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H04B 126
Abstract:
The present invention relates to uplink receiver circuitry which combines a local oscillator signal with an S-Band signal in a high-level mixer, operating in saturation, to produce an intermediate frequency (IF) signal in a high-level mixer. The use of a saturated high-level mixer enables the circuitry to convert received RF signals into undistorted IF signals without an RF limiter and its attendant dynamic range restrictions and distortion.