Communications: radio wave antennas – Antennas – Wave guide type
Patent
1986-02-05
1989-03-07
Sikes, William L.
Communications: radio wave antennas
Antennas
Wave guide type
H01Q 1302
Patent
active
048110272
ABSTRACT:
A directional antenna is provided having an array of directional antenna elements arranged in at least one row. The directional antenna elements are activated in accordance with a predetermined pattern. The signal amplitudes on the receiving side are time-shifted to simulate a low-frequency signal for detection of deeper-lying anti-tank mines. Each directional antenna element has a pair of flat strips which lie close to each other at the base side and which proceed in parallel before diverging to a greater width toward the aperture side.
REFERENCES:
patent: 2297202 (1942-09-01), Dallenbach et al.
patent: 2454766 (1948-11-01), Brillouin
patent: 2591486 (1952-04-01), Wilkinson
patent: 2751586 (1956-06-01), Riblet
patent: 2897491 (1959-07-01), Young
patent: 2946999 (1960-07-01), Kelleher et al.
patent: 2998602 (1961-08-01), Cacheris
patent: 3346068 (1967-10-01), Woods et al.
patent: 3611396 (1971-10-01), Jones
patent: 3860933 (1975-01-01), Terakawa et al.
patent: 3882505 (1975-05-01), Mailloux
patent: 3938160 (1976-02-01), Mailloux et al.
patent: 4447811 (1984-05-01), Hamid
IEEE Transactions on Geoscience & Remote Sensing, vol. GE-21, #2, 4/83, pp. 201-207.
TEM Horn Antenna: Input Reflection Characteristics in Transmission by Evans et al, IEEE Proc., vol. 130, Pt. H, No. 6, Oct. 1983.
Broadband Pulse-Optimised Antenna by Theodorou et al, IEEE Proc., vol. 128, Pt. H, No. 3, Jun. 1981.
Eltro GmbH
Meller Michael N.
Sikes William L.
Wimer Michael C.
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