Antenna with a periscope arrangement

Details Antenna with a periscope arrangement Antenna with a periscope arrangement

1975-03-14

1976-07-06

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Wave guide type

343786, 343761, H01Q 1914

Patent

active

039684970

ABSTRACT:
In an antenna of the Cassegrainian or Gregorian type including a periscope arrangement, the auxiliary reflector has a longer focal distance than the auxiliary reflector of a conventional antenna of this type and the length of the optical path between the auxiliary reflector and the primary source of the antenna is choosen substantially equal to the distance between the auxiliary reflector and that one of its two foci which is the more remote therefrom. This makes it possible to use only plane mirrors in the periscope arrangement.

REFERENCES:
patent: 3641577 (1972-02-01), Tocquec
patent: 3821746 (1974-06-01), Mizusawa et al.
patent: 3845483 (1974-10-01), Soma et al.
1970 G-AP International Symposium, Columbus, Ohio, (14- 16 Sept., 1970), pp. 400-406.
IEEE Transactions on Antennas and Propagation, Nov. 1973, Communication, (pp. 884-886).

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