Communications: radio wave antennas – Antennas – Wave guide type
Patent
1980-05-20
1982-08-17
Moore, David K.
Communications: radio wave antennas
Antennas
Wave guide type
343 65R, 343776, H01Q 1300
Patent
active
043452574
ABSTRACT:
A primary radar antenna has a secondary radar antenna or an IFF antenna integrated therewith. Excellent properties with respect to compactness, radiation and frequency dependency are achieved by providing a bilevel pillbox antenna having radiation deflection on a cylindrical parabolic reflector from one interplate space to another. The lower interplate space has, in proximity of the primary radar signal radiator, which is arranged with its radiation center in the focal line of the parabolic reflector, an additional feed for in-coupling of the IFF signal. The antenna is particularly suited as a combined primary and IFF radar antenna for smaller vehicles.
REFERENCES:
patent: 2589433 (1952-03-01), Riblet
patent: 2691731 (1954-10-01), Miller
patent: 2767396 (1956-10-01), Cutler
patent: 3170158 (1965-02-01), Rotman
patent: 3212095 (1965-10-01), Ajioka
patent: 3267477 (1966-08-01), Brickey
patent: 3852762 (1974-12-01), Henf et al.
patent: 3945009 (1976-03-01), Trignon
"Antenna Types and Antenna Forms", NTZ, (1961), vol. 2, NTG 1302, (Bartholomae et al., Technical Committee).
Jasik, H., "Antenna Engineering Handbook", McGraw-Hill Book Company, Inc., 1961, pp. 12-18 to 12-19.
Moore David K.
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