A MICROWAVE MODULATOR

摘要

The invention relates to the field of microwave devices and it is used to modulate the phase of the wave propagating in the waveguide. The SiC waveguide modulator consists of 4main components: the metal waveguide (1) for excitation of the SiC waveguide; the metal contacts (2); the source of the constant current (3); the SiC waveguide (4) with the propagating modes. The SiC waveguide is excited by placing it inside a metal waveguide. The modes propagate in the SiC waveguide. The main mode is emitted at the sharp end of the waveguide. The current flows at the waveguide. By this reason the SiC material heats till 1800 oC. The voltage is changed and by this way the temperature changes. Therefore we get the phase shift.