APPLIED RESEARCH ON COUPLING SCHEMES FOR PLASMA AMPLIFIERS.
Abstract
The concept of gap coupling to a beam-plasma system is studied. The theory of space-charge waves on one dimensional beam plasma systems is reviewed. The kinetic power associated with the complex waves of the system is examined, and it is proved that power can be extracted from the system even though the individual space-charge waves can carry no power. Tthe action of an applied field on the space-charge waves is examined, and expressions for coupling coefficients are obtained. Computations of the coefficients predict that strong coupling can be obtained with long transit-angle gaps because of the complex waves. The problem of gap coupling to a beamplasma waveguide is treated by a Fourier analysis, with the result that expressions are obtained for the coupling to each of the modes. X-band experiments are described on 3 study vehicles, each containing 2 plasma gap couplers and 2 re-entrant cavities as standard references. The presence of the plasma enhances the transmission of signals between the various parts of the study vehicles. The beam should be located close to the gap, but the gap width can be very long in terms of transit angle. Work is described on a feed system based on the quasi-optical properties of an ellipse.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 08, 1965
- Accession Number
- AD0612538
Entities
People
- Paul Chorney
Organizations
- M/A-COM Technology Solutions