Abstract :
High-efficiency high-peak power at UHF frequencies has been generated using commercial rectifier diodes operating as avalanche oscillators in simple tuned circuits. Peak power outputs are as high as 400 watts with as much as 75 percent efficiency. Oscillators have been operated in both coaxial and microstrip circuits using single and multiple-paralleled diode arrangements, and are mechanically tunable over a 10 to 15 percent frequency bandwidth.
