Circuit suppresses AM component while providing matched input impedance. Phase modulation uses reflective properties of series resonant tank to reflect all of signal except for small amount in unloaded Q of coils and varactor diode. Circuit used in payload integrator of Space Shuttle S-band communications and tracking equipment, has applications in other communications and tracking equipment.
Linear Phase Modulator
NASA Tech Briefs ; 10 , 2
1986-05-01
Miscellaneous
No indication
English
Wideband Linear Phase Modulator
NTRS | 1994
|Pulsewidth modulator phase shift
IEEE | 1980
|Linear modulator test procedure and report
NTRS | 1971