Microwave antenna structure, fitting with the smame microwave antenna structure and device with at least one same fitting

Abstract

An antenna configuration for a cooking appliance with a cooking chamber, including at least one accessory for introducing at least two cooking product carriers for the treatment of cooking products on at least two treatment levels. The accessory carrying multiple antennae. The cooking appliance having an equipment chamber or technical chamber separated from the cooking chamber having at least one microwave source, whereby the antennae are fed from the microwave source with microwaves with wavelength lambda through a system of lines of the accessory. At least one antenna is arranged per treatment level and each treatment level is arranged in a resonant body for the microwaves. The resonant body defined by a cooking product carrier and the cooking chamber or between two cooking product carriers. The antennae comprise detuned lambda / 4 rods to provide essentially the same microwave energy to each treatment level.

Description

technical field [0001] The invention relates to an antenna structure for use in a cooking apparatus comprising a cooking chamber, wherein at least sometimes at least one fitting is provided for inserting at least two holders of cooked goods into the cooking chamber so that the cooked goods Cooked goods are processed on a rack in at least two treatment planes each defined by a cooked goods rack, which supports a plurality of antennas and has an instrument or technical room separate from the cooking chamber, in which at least one microwave source, wherein the antennas can be supplied with microwaves of wavelength λ by the microwave source via a line system surrounded by fittings, at least one antenna is arranged for each treatment plane in order to emit microwaves and each treatment plane is arranged in a for emission into the cooking chamber In a resonant cavity for microwaves in a microwave, which is defined by a cookware holder and the cooking chamber top or between two cookw...

AI Technical Summary

Problems solved by technology

[0005] Disadvantageous in the above-mentioned prior art is that, for many cooked goods planes or treatment planes, it is not possible to supply microwave energy to the cooked goods simply, cheaply and uniformly

For example, when many magnetrons are used, many places in an instrument room or technical room of the device are occupied, and the synchronization of the magnetrons is extremely complicated, when it is required to input microwave energy uniformly into the cooked items in different processing planes This is especially true when the microwave emissions of different antennas can interact, for example attenuate and / or cancel

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