Uploaded January 2024 | Updated September 2026, 1 week ago

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#211 In this video I look at a particular method of building baluns that involves only the usage of inductors and capacitors, no transformers or transmission lines needed. I look at the main operating principles behind this circuit as well as some of its implementations. In certain cases due to size constraints or because of particular impedance ratios, this sort of balun can become quite useful.

Balun series:
Ep1 - Communication lines and baluns youtu.be/EojKvuc9xck
Ep2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQ
Ep3 - Energy coupling youtu.be/83QRK1ULmY8
Ep4 - Transmission line baluns youtu.be/gS0YBCNYViY
Ep5 - Transmission line experiments: youtu.be/la1VS7YVE0M
Ep6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQ
Ep7 - The Guanella Transformers: youtu.be/QAYaetJ1dvM
EP8 - LC baluns: youtu.be/Lne2knTHbds

Further reading:
leleivre.com/rf_lcbalun.html
analog.intgckts.com/impedance-matching/lumped-lc-balun
researchgate.net/profile/Winfried-Bakalski/publication/3953294_Lumped_and_distributed_lattice-type_LC-baluns/links/53da218f0cf2e38c63365970/Lumped-and-distributed-lattice-type-LC-baluns.pdf
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