Gravity wave antenna
(You will not hear or read much about this.)
Gravity wave antenna is not a common term, but is just what Podkletnov implemented with a spinning superconducting disk.
One of the more popular Gravity wave antennas is the toroidal rivers of electric current that roll inward while compressing the spent thermonuclear furnace of a star heart, just as the gravitic free-fall of the star's mass takes the super-nova event of this star to a heavy-mass creation moment of thunderous compressive environment.
While a star shrinks to a violent nova explosion, the toroidal rivers of current circulating the star heart tighten their radii within the star's shrinking volume. The process of current induction by volumetric compression of plasma tightening the coupling between toroidal current rivers and a star's mass. A gravity wave is produced by the nova, by the process.
When a spent star falls to its center, the inertial moments bounce, and rebound. For a star, as all things, there is a harmonic period to this fall-compress-expand-slow, and repeat.
Consider that the harmonic magnetic pulse antenna, crafted of toroidal shape, a shape of optical clarity to the energy-conservancy-coherence about to happen when it is pulsed, will impress a signal upon the scalar continuum of the vacuum energies, where the essence of electromagnetic fields is manifest.
If a resonance is established with a magnetic toroidal resonator, then a record of this toroidal harmonic self-coupling (compression requires self-attraction to center of self) is broadcast into the stochastic noise-floor of the very stochastic, or random, universe of quantum events. The center of a toroidal compression is on the axis of the torus, at the plane of the torus.
The energy patterns of a torus knot of current rivers in star heart plasma during nova collapse are very much a harmonic impulse with resonant rebound.
The science of this initiative is test these conjectures of the parallel of star field topology and dynamics with the behavior of bifilar, toroidal current oscillations.
To mechanically recreate the field topology with copper torus knot loops to a successful, steady, controlled resonance will require the analysis of the impulse envelope, to create the required inductive reverberation that is afforded amplification to resonance. The bifilar toroidal knot resonance is a continuance at the system-expense.