Method for producing wavefronts at a desired angle

Communications: directive radio wave systems and devices (e.g. – Directive – Including antenna pattern plotting

Reexamination Certificate

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C342S377000

Reexamination Certificate

active

08009094

ABSTRACT:
An apparatus and method is described for generating an electromagnetic, or acoustic field by use of a number of field sources in order to produce a field anomaly at a known target location. The field anomaly is characterized by having a wavefront at the target location that has a predetermined desired orientation so that at the target location the field appears to emanate from a different direction to that perceived at field locations away from the target.

REFERENCES:
patent: 4885725 (1989-12-01), McCarthy et al.
patent: 7274442 (2007-09-01), Dolne et al.
patent: 2008/0112265 (2008-05-01), Urbano et al.

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