MICROWAVE OVEN HAVING A PHYSICALLY ADJUSTABLE WAVEGUIDE DYNAMICALLY DISPLACED BY A MOVEMENT CONTROL MEANS

The present invention relates to a nnicrowave oven having a microwave transmission means (3), which transmits electric field and/or magnetic field, whose structural properties are adjustable in order for matching the impedances of the microwave oven cavity (4) together with various loads to a microwave generating device (2). The microwave oven (1) of the invention comprises a microwave transmission means (3) of an electrically conductive material allowing for the transmission of microwaves and which confines and carries the microwaves produced by the microwave generating device (2) to be transmitted into the oven cavity (4) adapted to contain food articles to be cooked.