Illinois Tool Works Inc.
Waveguide assembly for an RF oven

Abstract:

An oven includes a cooking chamber configured to receive a food product and an RF heating system configured to provide RF energy into the cooking chamber using solid state electronic components. The cooking chamber is defined at least in part by a top wall, a first sidewall and a second sidewall. The solid state electronic components include power amplifier electronics configured to provide the RF energy into the cooking chamber via a launcher assembly operably coupled to the cooking chamber via a waveguide assembly. The waveguide assembly includes a waveguide extending along at least one of the first sidewall or the second sidewall to provide the RF energy into the cooking chamber through a radiation opening provided at the at least one of the first sidewall or the second sidewall. The launcher assembly includes a launcher disposed proximate to a first end of the waveguide and the radiation opening is disposed proximate to a second end of the waveguide.