Accession Number : AD0428241


Title :   APPLIED RESEARCH ON A HIGH-POWER MILLIMETER-WAVE GENERATOR.


Descriptive Note : Rept. for June 61-Aug 63,


Corporate Author : WATKINS-JOHNSON CO PALO ALTO CALIF


Personal Author(s) : Sedin,J W ; Purnell,M ; Slocum,K W


Report Date : Aug 1963


Pagination or Media Count : 141


Abstract : The purpose of this program is to demonstrate the feasibility of generating very high power, specifically, 100 kw peak and 1000 watts average at 100 Gc, by means of an O type backward-wave oscillator operating at very high voltage. A discloaded waveguide which operates from 90 kv to 200 kv was selected as the circuit for the backward wave oscillator. A 900 to 1 convergence ratio electron gun was developed. This perveance 0.125 x 10 to the -6th power electron gun was focused through a .062 in. diameter beam hole with over 96% transmission at 190 kv. The power density in the beam was 280 megawatts per square cm. Peak power of 107 kilowatts was measured using a calorimeter as a power standard. An average power of 324 watts was measured using the calorimeter. Both of these power levels exceed any other known values of power at a frequency of 100 Gc. (Author)


Descriptors :   *MILLIMETER WAVES , POWER , ELECTRON GUNS , WAVEGUIDE WINDOWS , MANUFACTURING , HELIXES , PERFORMANCE(ENGINEERING) , STANDING WAVE RATIOS , MAGNETIC FIELDS , PHYSICAL PROPERTIES , MODULATORS


Distribution Statement : APPROVED FOR PUBLIC RELEASE