View Single Post
Old 30th Nov 2017, 1:11 pm   #18
G8HQP Dave
Rest in Peace
 
Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,872
Default Re: Attenuators - theory and the design of.

There is a formula for solving cubics but it is very complicated and probably rarely used.

You might be better doing complex algebra (which is no more difficult than real algebra) and get a complex formula for each impedance (unknown) in the network in terms of source and load (knowns). Then simply do complex arithmetic. If you use a common attenuator design (e.g. pi) then you may find the formula already written out. Doing this with separate R and X's just makes everything more complicated.
G8HQP Dave is offline