Patent ID: 8378275

Claim:
An apparatus which comprises: at least one microwave generator; at least one generally rectangular waveguide having a standing microwave of approximately 915MHz therein generated by said microwave generator; and an essentially microwave-transparent ceramic tube having an inlet and an outlet, said ceramic tube positioned at least partially within said waveguide and exposed to said standing wave; a pump to move a liquid organic-containing material into said essentially microwave-transparent ceramic tube inlet; a microwave frequency adjustment tuner assembly to match output impedance of said microwave generator to said liquid organic-containing material flowing through said microwave-transparent ceramic tube; and a power density monitor for measuring applied and reflected power within said at least one essentially rectangular waveguide by at least one sampling diode within a directional coupler mounted in said at least one waveguide, said power density monitor providing feedback to minimize reflected power by adjustment of said microwave frequency tuner.