Apparatus for overcoming the blockage effect of an object in the

Details Apparatus for overcoming the blockage effect of an object in the Apparatus for overcoming the blockage effect of an object in the

1998-11-12

2000-04-18

Gregory, Bernarr E.

Communications: directive radio wave systems and devices (e.g.,

Radar reflector

342159, 343705, 343708, 343718, H01Q 128

Patent

active

060520787

ABSTRACT:
Apparatus which overcomes the blockage effect of an object in the path of a beam of RF energy, includes a conformal array of parasitic electrical conductor elements having a length of about .lambda./3 and which are selectively located above the surface of the object, also at a height of about .lambda./3. The parasitic conductor elements operate to duct the RF energy of the beam around the object with minimal loss in gain and effect on the beam's radiation pattern.

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patent: 4924228 (1990-05-01), Novak et al.
patent: 5128678 (1992-07-01), Novak et al.
patent: 5250950 (1993-10-01), Scherrer et al.
patent: 5276447 (1994-01-01), Shingo

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