xaos wrote: > Hello everyone, > > In my daily eBay search for (gps*, distrib*) > > I found item: 330012701666 > http://cgi.ebay.com/Distribution-Amplifier-6-Way-Output-MWT-Powered-Divider_W0QQitemZ330012701666QQihZ014QQcategoryZ25392QQssPageNameZWDVWQQrdZ1QQcmdZViewItem > > which is an 806-849 MHz Distribution amplifier. > > When I looked at the JPEG: > > http://www.ridgeequipment.com/images/6-way-amp-0213.jpg > > I was a bit confused as the the purpose of the > large circular trace which held a "snake" like > trace within it. > > At first glance, it seemed that the circular trace was connected > at both ands to the "snake" trace but there is a resistor > there. > > So it seems that the "snake" like trace should be the > same length of the semi-circle to match the phase. > > My question is: why would there be a resistor there? > > Why have the two semi-circular ends connected in such a way? > > Regards, > > George Hrysanthopoulos, N2FGX
George, See this page for a description of why that resistor is needed in a Wilkinson power divider (which is what you're looking at). http://www.microwaves101.com/encyclopedia/Wilkinson_splitters.cfm _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
