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Guanella balun 1: 1 comparison between two and four conductors.

Used material: Amidon FT240-43 cores.

LEFT = 2 conductors RIGHT = 4 conductors


Left: transmission line with an impedance of 100 ohms.

Right: 2 transmission lines with an impedance of 100 ohms in parallel = 50 Ohms impedance.


Schematic:

Insertion loss / Return loss:


Return loss (SWR) 2 wires: Return loss (SWR) 4 wires:


Insertion loss 2 wires: Insertion loss 4 wires:


Common mode rejection:



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