Patent ID: 6057535
Filing Date: 2000-05-02
Classification: H05B

Abstract:
Electric cooking oven comprising a cooking chamber (1), a source of microwave energy and a waveguide (2') of substantially parallelepipedal shape delimited transversely by two substantially rectangular surfaces (20', 21') located in two parallel planes separated by a predetermined distance (d), the output of the guided waves taking place in at least two regions (230,231) located in an output plane (23') perpendicular to the two surfaces and delimited by two parallel edges (b'.sub.1, b'.sub.4) connecting the two surfaces, characterized in that said edges have a length (1) greater than the distance (d) separating the two surfaces (20', 21'), so as to optimize at least one of the number of transverse electric and magnetic modes excited within the cooking chamber in planes of excitation parallel to the output plane.