Periscope arrangement with protection against parasitic radiatio

Details Periscope arrangement with protection against parasitic radiatio Periscope arrangement with protection against parasitic radiatio

1977-04-11

1981-02-03

Moore, David K.

Communications: radio wave antennas

Antennas

Wave guide type

343786, 343840, H01Q 1516

Patent

active

042491835

ABSTRACT:
A cylindrical metal sheath surrounds the beam rays between the antenna and the passive reflector of a periscope arrangement; this sheath forms the support of the periscope arrangement as well as a screen against parasitic radiation.

REFERENCES:
patent: 2665383 (1954-01-01), Marie
patent: 3689923 (1972-09-01), Tocquec
patent: 3936837 (1976-02-01), Coleman et al.
Curtis Siller, Jr. and Paul Butzien "A Radio Antenna for Application at 18 GHz", 1974 International IEEE AP-S Symposium p. 254.
Graeme James and Vassilios Kerdemelidis "Null Shaping in Radiation Patterns by Shaping Antenna Edges" Electronics Letters 8/28/72, vol. 8 #17.

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