Title :
The optimum grid to cathode spacing in planar triodes
Author_Institution :
Bell Telephone Labs., Inc., Allentown, Pa.
fDate :
5/1/1965 12:00:00 AM
Abstract :
The behavior of planar triodes with close grid-to-cathode spacings is investigated theoretically and experimentally. Special attention is paid to island formation dimensional variation initial electron velocity and cathode coating resistance. A formula is derived for the optimum grid-to-cathode spacing which yields maximum transconductance, maximum power gain-band product and minimum noise figure.
Keywords :
Cathodes; Coatings; Current density; Electron emission; Helium; Manufacturing; Noise figure; Transconductance; Voltage; Wires;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/T-ED.1965.15493
