APPARATUS FOR TRANSMITTING MICROWAVE ENERGY FROM GENERATOR TO MICROWAVE OVEN CHAMBER Russian patent published in 2014 - IPC H05B6/64 

FIELD: physics.

SUBSTANCE: apparatus for transmitting microwave energy from a generator to a microwave oven chamber is an assembly unit consisting of a magnetron generator and a double-element stripline antenna mounted inside the microwave oven chamber and which excites a circularly polarised electromagnetic field. The energy output of the magnetron is directly electrically connected to the antenna radiator, which considerably reduces (to 4%) loss of microwave energy in the magnetron-antenna-microwave oven chamber line. The design of the double-element stripline antenna with in-phase supply, matched with the microwave oven chamber to a voltage standing-wave ratio (VSWR) of about 1.5 using three short-circuit bars with diameter of 10 mm and length of 26 mm, enables to excite, inside the microwave oven chamber, a circularly polarised electromagnetic field whose energy distribution uniformity coefficient in an equivalent load is equal to 94%.

EFFECT: high efficiency of operation and uniform distribution of microwave sources.

4 cl, 2 dwg