Besides the frequency of the electromagnetic waves , is this the same concept as the "Pioneer Anomaly" - where they eventually figured out it was thermal radiation emitted from its satellite dish which slowed down the spacecraft ?
Finally, the whole point of science is to discover things. Not make magic :|
What would make this phenomenon interesting if it actually works is not merely that it requires no reaction mass, but that it's much more powerful than a photon drive. If it turns out to just be a photon drive, then the magnitude of the effect has been greatly overstated, and this is a really complicated way to achieve the same effect as pointing a laser out the back of your spaceship.