AN INVESTIGATION OF THE JUNGLE GYM PERIODIC STRUCTURE
Abstract
A jungle gym periodic structure, an array of square bars contained within a square waveguide is discussed; it is suitable for use, both, as a linear accelerator, and for high power traveling wave tubes, since heat can be conducted directly to the walls of the guide. Characteristics of the jungle gym, determined experimentally, are the propagation characteristics, internal Q, and coupling impedance. Resonance frequency measurement, tangent method, and the perturbation technique, necessary in order to obtain the abovementioned characteristics, are given. In addition, a structure, the wire loaded cylindrical guide structure, closely related to the jungle gym, is described. Both structures exhibit a slow backward fundamental space harmonic and large bandwidth. Bandwidths obtained for the jungle gym structure, dependent on its periodic length, range from about 2000 to 3600 mc, with an approximate midband frequency of 4700 mc. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 09, 1961
- Accession Number
- AD0258702
Entities
People
- Bernard Mohr
Organizations
- New York University Tandon School of Engineering