12th Wavelength Impedance Matching Transformer

#250 In this video I look at a lesser know type of impedance matching circuit built with a couple short pieces of transmission line - the 12th Wavelength Transformer. Its a very similar concept to the quarter wavelength transformer, however its shorter and it also uses the same impedances as the connecting elements, so you don't really need special transmission line impedance values to use it.

Impedance matching series:
Resistive matching:    • Electronics tutorial - Resistive (lossy) i...  
Lossless matching part 1:    • Lossless Impedance Matching - Part1/2  
Lossless matching part 2:    • Lossless Impedance Matching - Part2/2  
Transformer matching part1:    • Wideband coupling - Transformer Impedance ...  
Transformer matching part2:    • Resonant coupling - Transformer Impedance ...  
Transformer matching part3:    • Coupling experiments - Transformer Impedan...  
Quarter wavelength matching part1:    • Quarter wavelength impedance matching (1/2)  
Quarter wavelength matching part2:    • Quarter wavelength impedance matching (2/2)  
Stub matching:    • Stub Impedance Matching  
12th Wavelength Transformer:    • 12th Wavelength Impedance Matching Transfo...  

References and further reading:
https://www.microwaves101.com/encyclo...
https://microwavejournal.blogspot.com...
https://www.cv.nrao.edu/~demerson/cs/...
https://www.coaxsolutions.com/shop/rg...

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