A wideband power mixer tube
- 1 December 1953
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the IRE Professional Group on Electron Devices
- Vol. PGED-4 (4) , 15-27
- https://doi.org/10.1109/irepged.1953.6811075
Abstract
The use of a traveling-wave tube1 as a power mixer employing phase modulation at a single frequency has been described by W. J. Bray.2 To use the same modulation principle with a wide band of modulation frequencies (hundreds of megacycles), excessive modulating power would be needed. This paper presents theory and experimental data for a broad-band traveling-wave type mixer requiring low modulating power. It consists of an input helix, a drift tube and an output helix arranged successively along a beam. Low modulating voltage is realized by operating the drift tube at low potential; the output helix is operated at high potential so the required power output can be obtained.Keywords
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