Pulsed power amplifier


We're looking for a GaN power amplifier that we can operate in pulsed mode at ~10W.

Is the HMC7885 suited for this? If so, how would we modulate the output? Ideally we'd like to generate short (10-100nS) pulses at a duty cycle of 10%.

Can you suggest other power amplifiers suited for pulsed operation at C band?



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    •  Analog Employees 
    on Mar 11, 2020 1:54 PM in reply to ShaiV

    That is a difficult question to answer because it depends on a lot of variables such as the drive source and the amount of capacitance on the node being driven. In general, I would say that it's easier to pulse the gate because there is no a large current draw associated with gate pulsing compared to drain pulsing. Take a look at the datasheet for HMC8415LP6GE. There is a description of the pulsor board in there. The pulsor board ships with some GaN eval boards (for parts that are intended for pulsed operation).

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