Communications: radio wave antennas – Antennas – Antenna components
Patent
1975-10-29
1977-05-03
Lieberman, Eli
Communications: radio wave antennas
Antennas
Antenna components
29600, 72478, H01Q 1516
Patent
active
040218171
ABSTRACT:
A method of forming an antenna reflector having a predetermined curved surface by forcing a plate of metal or plastic upon an array of die members of different heights protruding from a die base, for example, coaxially arranged cylinders of proper height with proper spacing on the die base. This process makes the manufacture of the antenna reflector extremely rapid and easy.
REFERENCES:
patent: 1336388 (1920-04-01), Youngberg
patent: 1449385 (1923-03-01), Dietrich
patent: 2372418 (1945-03-01), Forbes et al.
patent: 2969544 (1961-01-01), DiMarco et al.
patent: 3897294 (1975-07-01), MacTurk
Hatano Tetsuo
Ohkura Toshihiko
Shibano Yoshizo
Lieberman Eli
Sumitomo Electric Industries Ltd.
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