New for July 2015. This comment came from Paweł, we thought it deserved its own page. We will link to it from other pages where we might have created some confusion... We'll wait for the IEEE MTT-S subject matter experts to weigh in on this before we mess with any of the other content on "splitters"...
In Paweł's words:
I write in regard to Couplers and Splitters section. I would like to notice that some references clearly distinguish "splitter" notation and "divider", so that first in short divides power equally and are bidirectional, where the splitter is unidirectional and use two-resistor approach.
Reference:
http://weinschel-catalog.apitech.com/category/power-splitters-dividers?pcat=weinschel
http://literature.cdn.keysight.com/litweb/pdf/5989-6699EN.pdf