Antenna for combined surveillance and foliage penetration radar

Details Antenna for combined surveillance and foliage penetration radar Antenna for combined surveillance and foliage penetration radar

1976-12-06

1978-06-27

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Plural separate diverse type

343795, 343817, 343834, H01Q 2100, H01Q 928, H01Q 1910

Patent

active

040978680

ABSTRACT:
An L-band radar and antenna array operating with an existing X-band surveance radar to provide a foliage penetration capability. The foliage penetration antenna consists of an array of L-band, stripline dipole/director elements placed in front of an array of broadwall waveguide slots which define an X-band aperture. The X-band aperture in addition to its own function, serves as a reflector for the dipole/director elements. Aperture sharing is thus provided for a dual frequency antenna without increasing the size of the existing X-band aperture.

REFERENCES:
patent: 2745102 (1956-05-01), Norgorden
patent: 2846678 (1958-08-01), Best
patent: 2893004 (1959-06-01), Kobler
patent: 3165817 (1965-01-01), Teague
patent: 3193830 (1965-07-01), Provencher
patent: 3394379 (1968-07-01), Pickles
patent: 3482248 (1969-12-01), Jones, Jr.
patent: 3550135 (1970-12-01), Bodmer
patent: 3623112 (1971-11-01), Rupp

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