ULTRA HIGH POWER TRANSMISSION LINES
Abstract
Research was conducted on failure mechanisms in microwave transmission lines at ultra-high power levels. Electrical breakdown under non- uniform conditions is discussed. The application of the variational technique for solving the diffusion equation is treated as well as the derivation of an additional term for the diffusion equation to account for non-uniformities in the gas density. As part of the non-uniform electric field problem, expressions are derived for an idealized rough surface. As part of the more general effects of non-uniform conditions it is shown that a small foreign body in a waveguide can become extremely hot and cause reductions in peak power breakdown thresholds of approximately 5:1. An analysis of the cooling capabilities of an internal gas flow in a waveguide shows that under restricted conditions the power dissipation can be increased by a factor of two or three. Finally the characteristics of a mode suppression filte of oversized, large wave length, rectangular waveguide is derived and discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 19, 1961
- Accession Number
- AD0277925
Entities
People
- Meyer Gilden
Organizations
- Rome Laboratory