CW Operation of LSA Oscillator Diodes-44 to 88 GHz

Abstract

Bulk n-GaAs oscillator diodes have been operated on a continuous basis in the LSA (Limited Space-charge Accumulation) mode <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> at frequencies from 44 to 88 GHz. This is the first time a practical solid-state oscillator has operated continuously in this high-frequency range. The reason the LSA diode can produce millimeter wave power at higher frequencies than other solid-state devices such as transistors, tunnel diodes, IMPATT diodes, and Gunn diodes is because it is the first device which is not subject to the “transit-time limitation.”