Low sidelobe resistive reflector antenna

Communications: radio wave antennas – Antennas – Antenna components

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H01Q 1514

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active

051344238

ABSTRACT:
Tapering the surface current density near the edges of a parabolic reflector antenna lowers the sidelobe level of the reflector. The current density is tapered by placing tapered resistive edge loads on the reflector for gradually decreasing the conductivity from the center of the reflector to the edge.

REFERENCES:
patent: 3156917 (1964-11-01), Parmeggiani
patent: 3211584 (1965-10-01), Ehrreich
patent: 3314071 (1967-04-01), Lader et al.
patent: 3761937 (1973-09-01), Ticoles et al.
patent: 4376940 (1983-03-01), Miedema
patent: 4642645 (1987-02-01), Haupt
patent: 4763133 (1988-08-01), Takemura et al.
patent: 4994818 (1991-02-01), Keilmann
Bucci, Ovidio M. et al., "Control of Reflector Antennas Performance by Rim Loading", IEEE Transactions on Antennas and Propagation, vol. AP-29, No. 5 Sep. 1981, pp. 773-779.
Bucci, Ovidio M. et al., "Rim Loaded Reflector Antennas", IEEE Trans. Antennas Propagation, vol. AP-28, No. 3, 1980, pp. 297-305.

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