Dispositivo e processo de transmissão de informaçães para sistema com guia de ondas propagador

摘要

The device includes a cavity resonator (1) which lies on one side of the waveguide (2) and is short-circuited at its ends. The resonator resonates in a fundamental TE011 mode. The coupler comprises holes in the guide and the cavity and the resonant slot, lying at right angles to the slots in the waveguide, is directed from the large surface of the cavity towards the mobile unit. A Schottky diode, acting as a modulator (7), is positioned between the edges of the resonant slot and a point of high impedance at the required frequency. A device within the cavity generates the information signal to the diode which may short-circuit the slot depending on the signal polarity.