Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1979-05-03
1981-03-17
Buczinski, Stephen C.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 16M, 3431145, 343118, G01S 504, G01S 502, G01S 1300
Patent
active
042570476
ABSTRACT:
From an antenna array of a plurality of fixed, narrow beamwidth antennas, geographically oriented to provide omnidirectional coverage, a set of antennas is selected. The selected set includes first and second oppositely oriented pairs of adjacent antennas. The signals received by the adjacent antennas in each selected pair are connected to the inputs of different pairs of matched receiver channels. The logarithmic video output signals from the receiver channels in each pair are subtracted to simultaneously generate first and second monopulse ratios. The monopulse ratios are compared and the ratio representing the forelobe response is selected while the ratio representing the backlobe response is suppressed. If certain acceptance rules are met, the selected ratio is processed to obtain unambiguous angle of arrival information with instantaneous angular coverage over the monitored sector. The array is electronically scanned by a controlled switching system which causes successive antenna sets to be selected, in sequence. Successive selection of the antenna sets in sequence provides a 360.degree. total field of view.
REFERENCES:
patent: 3056961 (1962-10-01), Michell
patent: 3824596 (1974-07-01), Guion et al.
patent: 3906505 (1975-09-01), Lipsky
patent: 3939477 (1976-02-01), Green et al.
patent: 4062015 (1977-12-01), Litva et al.
Buczinski Stephen C.
General Instrument Corporation
LandOfFree
Method and apparatus for electrically scanning an antenna array does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for electrically scanning an antenna array , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for electrically scanning an antenna array will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1648248