I have seen something about this before but wrote it off as nuts. Looks like now I need to go through the theory as an exercise.
OverView
The technique described in this paper uses radiation pressure, at microwave frequencies, in an engine which provides direct conversion from microwave energy to thrust, without the need for propellant. The concept of the microwave engine is illustrated in fig 1. Microwave energy is fed from a magnetron, via a tuned feed to a closed, tapered waveguide, whose overall electrical length gives resonance at the operating frequency of the magnetron. The group velocity of the electromagnetic wave at the end plate of the larger section is higher than the group velocity at the end plate of the smaller section. Thus the radiation pressure at the larger end plate is higher that that at the smaller end plate. The resulting force difference (Fg1 -Fg2) is multiplied by the Q of the resonant assembly.
Research Links
- EM Drive Theory Paper
- Article in the Register: Chinese tested and NASA tested also
- EMDrive website – there is test data
- Warp Field Mechanics 101 – by Sonny White
- NASA's EM Drive webpage
- NASA EM Drive Forum
- EM Drive experiment using microwave oven magnetron -Berca Iulian I am from Romania – Electrical Engineering
Harold G. "Sonny" White Video – later in the video he talks about his EM drive tests.
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