Method of measuring the null angle of a monopulse antenna and ap

Details Method of measuring the null angle of a monopulse antenna and ap Method of measuring the null angle of a monopulse antenna and ap

1990-10-22

1993-01-19

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Determining direction

Monopulse

342154, 342157, 342158, 342152, G01S 1344, G01S 736

Patent

active

051810409

ABSTRACT:
A method of and an apparatus for measuring the null angle in the difference vs. sum pattern and in the difference pattern of a monopulse antenna. The null angle of the monopulse antenna in the radiation pattern is acquired by transmitting an RF signal from a plurality of antenna elements to the monopulse antenna, acquiring the sum signal and difference signals in the directions of the respective antenna elements and acquiring the null angle in accordance with the sum and difference signals. The apparatus comprises a rotator for changing the direction of the monopulse antenna and a transmitting antenna facing the monopulse antenna for transmitting a test signal to the monopulse antenna.

REFERENCES:
patent: 3683381 (1972-08-01), Strenglein
patent: 3772695 (1973-11-01), Hoffman
patent: 4134113 (1979-01-01), Powell
patent: 4296415 (1981-10-01), Pelton et al.
patent: 4331958 (1982-05-01), Lacomme
patent: 4517570 (1985-05-01), Gray, Jr.
patent: 4549183 (1985-10-01), Farina
patent: 4568940 (1986-02-01), Diamond
patent: 4599622 (1986-07-01), Hampt
patent: 4719464 (1988-01-01), Gendreu
patent: 5017929 (1991-05-01), Tsuda

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