Pratica Chef Express Service Manual page 70

MICROWAVE SYSTEM
64
Powerful magnets are placed above and underneath the anode to generate a magnetic field along
the length of the antenna. The magnetic field causes the electrons to follow a curved path around the
cathode and the anode as seen in the picture below.
As the electrons pass by the cavities, the cavities begin to resonate and emit microwave radiation.
The microwave radiation that is produced by the cavities is captured by the antenna and funneled
into the waveguide which will guide the microwave radiation into the cook cavity. The microwave
then gets attracted to the food product(s) due to the moisture.
ANTENNA
MAGNET
MAGNET
ANODE
SEAL OF
MICROWAVES
ANTENNA
FILAMENT
(CATHODE)
FILAMENT
CATHODE
PROTECTION
THERMOSTAT