Radar radiometer and its use

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed

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343 177, H04B 700, G01S 740

Patent

active

043475159

ABSTRACT:
A radar radiometer apparatus including a superheterodyne amplifier, a synonous demodulator, and logic circuitry to provide for the interruption of a local oscillator for a portion of each pulse of a radio frequency repetition cycle in order to isolate radar receiver/transmitter coupling and permit simultaneous radiometer use.

REFERENCES:
patent: 3359555 (1967-12-01), Taylor
patent: 3599207 (1971-08-01), Foiani et al.
patent: 3701989 (1972-10-01), Calhoun et al.
patent: 3766556 (1973-10-01), Amoroso
patent: 3778824 (1973-12-01), Roger
patent: 3787857 (1974-01-01), Lazarchik et al.
patent: 3836966 (1974-09-01), Frisbee
patent: 4015261 (1977-03-01), Campbell
patent: 4292638 (1981-09-01), Lazarchik et al.

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