Antenna Guru

RF is not 'black magic' – It's Synthesis, Optimization, Analysis and Realization.

Tag Archives: Fast Fourier transform

A Yen for Yin and Yang

C++This has been an interesting week and it’s only Tuesday…

Yesterday I found myself involved in computer code of all things. I was actually able to dig out some C++ code I wrote for a *.dll way back in the year of ’99. My direct involvement in computer programming was short-lived — there were other people who were pretty good at it already and the integrated development environment simply wasn’t ‘real’ enough for me. Still, and all, it was neat to find (and find useful) an archived project from days gone by.

After that walk down memory lane I worked on the finishing touches of an algorithm that uses Inverse Fast Fourier Transform analysis to automatically tune split ring resonator filters as they are being manufactured.IFFT

But then I had to put that project on hold because the fellow who is commissioning the tuning algorithm wanted new (22 GHz) test fixtures built to test the prototypes he has built so far.

But the test fixture project required me to grind some special holding fixtures so that I could machine the teensy weensy test fixtures in the first place. I don’t have a precision grinder, so I used my mill.

Parallel_grinding_01

I wouldn’t want to do this all the time, but this was for a prototype and it worked out. So now, I’m back to getting those fixtures done, so we can validate the algorithm.

I like going from math books to machine shop and back. It’s interesting and fun to keep up that balance. It’s invigorating, it’s yin and yang.

Parallel_grinding_02
I wonder how that C++ code is going to turn out?

 

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