Help! uWave bias supply oscillates!
 

I'm fooling around, trying to measure the S params of an HXTR-6101, Low
noise npn uWave transistor. The transistor breaks into low freq
oscillations as I increae the base current. I've got it in a stripline
fixture, I made. I'm feeding the base from a supply,thru a 50KOhm, to a
..1uF & 22 uF cap to ground and 47uH coil to the base stripline run.
Same with the collector. How can I stop the low freq oscillations? You
can see a drawing of the stripline he

http://sdeyoreo.tripod.com/id18.html

Thanks.