NEGATIVE-GRID TUBES FOR PHASED ARRAYS.
Abstract
Research concerns the development of a triode or tetrode capable of providing a cw output of 1000 wats at 50 per cent efficienty at 1300Mcs. The tube must be designed to operate with a cw cathode-current density of at least l.5amp/cm sq. in order to keep the electrode capacitances low enough so as to enable the tube to reach a later goal of a low-level gain approaching 20db in a circuit having 10 per cent bandwidth. A gridded, planar, space-charge device, preliminary tubes and circuits were designed and fabricated. Seven tubes, five L-65 triodes and two L-66 tetrodes, were built and their mechanical and electrical characteristics evaluated. Microwave circuitry and anode cooling arrangements for triodes and tetrodes were designed. Low-level rf ests were conducted on one of the L-65 triodes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1963
- Accession Number
- AD0426331
Entities
People
- J. E. Beggs
- N. T. Lavoo
Organizations
- General Electric