[Ba.sub.x][Sr.sub.1-x]Ti[O.sub.3] (BST) films were grown on quartz substrates at 549[degrees]C by RF magnetron
cosputtering from BTO and STO targets, using a total power of 120 W distributed between the two magnetrons
In contrast to this, off-line method is applied after the glass has been produced, using a magnetron
and by vacuum deposition in PVD methods, usually sputtering type.
Klystrons, Traveling Wave Tubes, Magnetrons
, Crossed-Field Amplifiers, and Guyrotrons provides an excellent in-depth college-level engineering collection reference that considers tubes used for high-power applications.
3 shows that a small change in magnetrons
frequency  causes significant change in guided wave length because of operating near critical frequency.
"This invention should make it possible to develop more compact magnetrons
that operate at higher power and higher frequencies," said Gilgenbach.
"The plasma can be created from adding most any gas," says Tasch, who explains its job is to absorb the microwaves and prevent their reflection back to the magnetron
. (It's the reflection of microwaves off aluminum foil that causes damage to the magnetron
in kitchen microwaves.) Parts are placed in a quartz glass container that is used to contain the plasma at atmospheric pressure once the container has been purged of air through the introduction of argon.
The idea came about while he was visiting a lab where magnetrons
*, the power tubes of radars, were being tested and he felt a peanut bar start to cook in his pocket.
An added advantage is the ability to employ either magnetrons
or oscillators as the microwave source.
This design features 10 small magnetrons
with 1.2 kW each.
with power outputs from approximately 700 to 3000 W are used in 2450 MHz microwave ovens and in many industrial installations with up to hundreds of units per system.
"We've been using the magnetrons
, the tubes the microwaves come from, out of conventional microwave ovens," says engineering professor Michael M.