Communications: radio wave antennas – Antennas – Microstrip
Patent
1978-02-13
1979-12-25
Lieberman, Eli
Communications: radio wave antennas
Antennas
Microstrip
343705, 343853, H01Q 128
Patent
active
041808185
ABSTRACT:
In order to provide improved performance in a printed antenna, particularly for use in a Doppler navigation system, two pairs of linear arrays slanted at 45.degree. are utilized to obtain a beam shape which exhibits a degree of independence from over-water shift with the two sets of arrays constructed respectively as forward and backward firing arrays in order to compensate for frequency changes.
REFERENCES:
patent: 3249946 (1966-05-01), Flanagan
patent: 3423752 (1969-01-01), Schwartz
patent: 3508275 (1970-04-01), Deveau et al.
patent: 3832716 (1974-08-01), Plunk et al.
patent: 3995277 (1976-11-01), Olyphant
patent: 4119971 (1978-10-01), Stark
patent: 4120085 (1978-10-01), Peterson
Chin Edward
Deveau Emile J.
Schwartz Leonard
Kennedy Thomas W.
Lieberman Eli
The Singer Company
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