[seanxh]

I was a RF engineer two years ago, and now I am doing software development. I think I kind of resonate with many of the above comments. While I was doing RF design, I spend a lot of time on CAD tools(I agree many of them are overpriced), after I got my design from the fabs or manufactures, I spend most of my time on lab to validate/optimize my designs, due to that fact that some unforeseeable fab/manufacture processes variation that are not captured by the CAD tools. thing I feel very gratifying was if you utilize the right framework/methods that are reason upon physics, the performance of the design most likely will mach to what you predicted, and that allow you to design something reach/surpass some industry benchmarks