Answers are grounded in this paper and cite their sources.
CW operation of an abrupt-junction p-n silicon avalanche diode has produced 370 mW at 36.5 GHz with 6 percent efficiency. Another unit produced 320 mW at 39 GHz with 7 percent efficiency. Higher efficiency with present diodes requires power densities exceeding 3 × 105W/cm2.
No takes yet. Share an insight, caveat, or question.
Swan et al. (1967) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: