Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1992-07-20
1994-04-12
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
342170, H01Q 322, G01S 440
Patent
active
053029607
ABSTRACT:
An apparatus is disclosed for testing the immunity of an electronic device to interfering electromagnetic radiation. The apparatus includes a room enclosing a bounded space for containing the electronic device to be tested and a plurality of radiating elements disposed on the interior surfaces of the room for generating an electromagnetic field in the room. Each of the radiating elements includes a controllable phase shifter, a controllable amplifier, and antenna. The circuits of the phase shifter and amplifier are connected by a common signal bus to a radio-frequency signal source and by a common control bus to a controller for individually adjusting the phase and amplitude of the radiated signal to create an electromagnetic field within the room having a predetermined strength and distribution.
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Brinkman Dirk
Cefalo Albert P.
Digital Equipment Corporation
Issing Gregory C.
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