What do you folks think is the best efficiency that can practically be achieved (DC-microwave) in a solid state (not magnetron) S-band power oscillator, say 50 - 150W output?
Best regards, Spehro Pefhany
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The specification of the frequency could be a bit tighter. The output power is traded against the quality of the resonator. At microwave frequencies, a Gunn doesn't behave that bad. In the order of 100mW are achievable for a resonator which is as stable as 1E-6. If output power is the main concern, a piece of metal with a hole will do, the frequency will not be that stable then.
Rene
Say 2.5 GHz, give or take, and frequency stability is not very important. But 0.1W is a long ways from 150W CW, and power efficiency is the main concern.
Best regards, Spehro Pefhany
Isn't a power oscillator really an oscillator tapped to provide signal to a power stage? Even 50dBm TWTs need excitement in the 0dBm range, They are not, in themselves, oscillators.
RL
Is there any efficiency savings that can be achieved over just an amplifier with external excitation? Maybe not.
The whole idea behind a 'power' oscillator is that it can deliver the power - otherwise the lower the circulating energy, the better, if oscillation is all that is required.
RL
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