Wide band multiple side-lobe canceller

Details Wide band multiple side-lobe canceller Wide band multiple side-lobe canceller

1970-10-05

1986-04-29

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 736

Patent

active

045860459

ABSTRACT:
An IF side-lobe canceller having a main channel and a pair of auxiliary channels in which the signal from the main channel is mixed with a stable local oscillator and fed to a subtractor, while in each of the pair of auxiliary channels the signal from an omnidirectional antenna is fed to a mixer and then to the subtractor. The subtractor's output is fed to mixers together with the signals from the omnidirectional antennas. The outputs of these mixers are fed to additional mixers together with the mixed outputs of the stable local oscillator and a second oscillator.

REFERENCES:
patent: 4010469 (1977-03-01), Marcum
patent: 4044359 (1977-08-01), Applebaum et al.

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