Method and apparatus for accurately setting phase shifters to co

Details Method and apparatus for accurately setting phase shifters to co Method and apparatus for accurately setting phase shifters to co

1982-09-07

1985-07-30

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

333 17R, 343703, 343778, H04B 708, H01Q 336

Patent

active

045325189

ABSTRACT:
An amplitude control circuit and variable phase shifter driver, employable in electronically steerable antennas, compares amplitude and phase command signals for the amplitude controller and phase shifter with command signals derived from the amplitude ratio and phase difference between a reference r.f. signal and an r.f. signal at a selected location. The difference signals resulting from this comparison are added to the amplitude and phase shift command signals and applied to the amplitude controller phase shifter drivers to adjust the amplitude controller and phase shifter.

REFERENCES:
patent: 3646558 (1972-02-01), Campanella
patent: 3699584 (1972-10-01), Hrivnak et al.
patent: 4302738 (1981-11-01), Cabot et al.
patent: 4373160 (1983-02-01), Cooper

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