On Thu, 12 Aug 2004 15:32:00 -0500, "Steve Nosko"
wrote:


Lets think about this phase thing, however. As long as there is the proper
phase cancellation _in_ the splitter, it will balance. This doesn't mean
that it is flat, does it? You'll be sampling the forward power somehow and
the reverse power with one of these and you need to have them both constant
with respect to each other--otherwise you cant measure phase.. If the fwd
sampler is the same thing do you get matching characteristics (ignore
secondary imperfections for now). I don't know how good ones are made, so I
have know first hand knowledge.

Let's assume for one moment the splitter idea would function
acceptably as a directional coupler for this purpose. What's next in
the block diagram? Phase comparitor? DC amp?

--

"What is now proved was once only imagin'd." - William Blake, 1793.