ELECTROMAGNETIC ENERGY SHIELD

Assignee

RADANT SYSTEMS, INC., A CORP. OF MA

Filed

Aug 29, 1983

Granted

Apr 15, 1997

Location

BOSTON MA US

Abstract

A radome for providing a relatively wide-band operation which in a preferred embodiment uses at least a pair of panel means mounted adjacent each other, each having a plurality of discontinuous conductive elements applied to a selected surface thereof in an array of parallel paths. The discontinuous elements in each path of the array are interconnected by diode means which can be biased in a non-conductive direction during a first transmit mode and in a conductive direction during a second non-transmit mode. The panels are separated by a distance which is substantially equal to one quarter wave length (λs /4) at a selected frequency within the wide pass-band of electromagnetic energy which is to be transmitted. The overall structure essentially operates as a wide band, low-pass transmission device transmitting energy at frequencies within the selected pass-band during the transmit mode and rejecting transmission at all frequencies within at least this same selected pass-band during the non-transmit mode.

Source: Google Patents