On 10/11/14, 9:00 AM, cdel...@juno.com wrote:
Came across this.
Might be relevant.
Cheers,
Corby
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930008868.pdf
a) Greater than 100% power combining efficiencies have been realized as
predicted. This implies that the output power from the combiner is
typically greater than
the sum of the power available from individual devices.
Those are Indium Phosphide Gunn Oscillators which are highly nonlinear
and have significant dynamic component to their Z.
So you can't expect all the usual combining rules (which are typically
based on constant impedances, etc.)
This might be one of those "optimize the dynamic match to suck more
power out of the device" kind of things.
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