>Actually I am looking for components above 40 GHz and even
>above 100 GHz.  I also need to get into the T-ray band.
>GaN devices can achieve this but I do not know of anyone
>producing them commercially.

My understanding from the guys around here that were playing with Terahertz 
stuff, was that they were generating the necessary frequencies by frequency 
multiplying from a lower frequency that they could generate.. 

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