Communications: radio wave antennas – Antennas – Wave guide type
Patent
1985-01-22
1989-07-25
Hill, Rolf
Communications: radio wave antennas
Antennas
Wave guide type
343909, H01Q 1514
Patent
active
048518581
ABSTRACT:
A reflector antenna is constructed for operation in at least two frequency ranges. For this purpose the concave surface of the antenna reflector body, which preferably has a paraboloid configuration, is provided with surface zones arranged in regular arrays or patterns. These surface zones provide antenna or reflector elements which are reflecting or transparent with regard to a particular frequency range or band width, while other surface zones of the antenna reflector surface are transparent or reflecting in another given frequency range or band widths. Thus, depending on the configurations and dimensions of these different surface zones one and the same antenna is capable of handling frequencies in a plurality of different band widths and different apertures.
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Arnaud et al., Resonant-Grid Quasioptical Diplexer, Electronic Letters, Dec. 13, 1973, No. 25, pp. 589, 590.
Fasse W. G.
Hill Rolf
Kane, Jr. D. H.
Messerschmitt-Boelkow-Blohm GmbH
Wimer Michael C.
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