초록 ▼

A microwave oven excitation system comprising a cylindrical microwave launcher for radiating microwave energy into a heating cavity of a microwave oven which is mounted adjacent to the heating cavity, a quarter-wave matching waveguide secured to the launcher, a rectangular waveguide secured to the q

A microwave oven excitation system comprising a cylindrical microwave launcher for radiating microwave energy into a heating cavity of a microwave oven which is mounted adjacent to the heating cavity, a quarter-wave matching waveguide secured to the launcher, a rectangular waveguide secured to the quarter-wave matching waveguide, and a source of microwave energy at a predetermined operating frequency secured to the rectangular waveguide remotely from the launcher. In addition, a mode stirrer may be optionally installed within the cylindrical microwave launcher. Also, an iris may be optionally mounted between the cylindrical microwave launcher and the heating cavity.

대표청구항 ▼

[ We claim:] [1.] An apparatus for supplying a substantially uniform pattern of microwave energy to a heating cavity, comprising:(A) a cylindrical microwave launcher for radiating a substantially uniform pattern of microwave energy into a heating cavity, said cylindrical launcher including a first c

[ We claim:] [1.] An apparatus for supplying a substantially uniform pattern of microwave energy to a heating cavity, comprising:(A) a cylindrical microwave launcher for radiating a substantially uniform pattern of microwave energy into a heating cavity, said cylindrical launcher including a first closed end transparent to microwave energy securable to the heating cavity, a second closed end to preclude microwave energy escape therethrough, and a cylindrical wall connecting first closed end and second closed end of said launcher, said launcher being mountable adjacent to the heating cavity;(B) a first waveguide in a quarter-wave matching configuration having a wide open end and a relatively narrow open end, said wide open end of said first waveguide being secured to said cylindrical wall of said launcher for microwave communication therewith through the aperture in said cylindrical wall;(C) a second waveguide having an open end secured to said narrow open end of said first waveguide for microwave communication therewith and a closed end opposite said open end to preclude microwave escape therethrough; and(D) a first source of microwave energy at a predetermined operating frequency secured to said second waveguide adjacent to said closed end for microwave communication therewith;whereby a substantially uniform pattern of microwave energy from said first source is radiated into the heating cavity by said launcher.