Method and apparatus for regulating a single sideband up...

Details Method and apparatus for regulating a single sideband up... Method and apparatus for regulating a single sideband up...

H - Electricity

04

B

325/83

H04B 1/16 (2006.01) H03D 7/00 (2006.01) H03D 7/16 (2006.01) H03G 3/20 (2006.01) H03D 7/14 (2006.01) H03D 7/18 (2006.01)

Patent

CA 1270527

ABSTRACT OF THE DISCLOSURE To regulate a single sideband up converter having a pair of mixer stages (M1, M2), each mixer stage receives control signals to compensate for spurious signals of the mixer components. Part of the radio frequency output signal (RF') from the con- verter is fed to a down converter (M3). From the resulting down- converted signal, the original intermediate frequency signal (IF) as well as the first harmonic thereof are filtered out as a measure of oscillator and sideband suppression. From these filtered-out signals, control signals for the mixer stages (M1, M2) are obtained.

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