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See "Ideal balun model" in https://www.microwaves101.com/encyclopedias/baluns
This article says "Also note that in the simple balun design, ".a shorted stub is required to match the circuit (quarterwave at 10 GHz).
However, I think TL3 rather degrade frequency characteritics as balun.
Is this description truely reasonable ?
Does article want to say this short stub is for adjusting balance in actual design ?
This article says "Also note that in the simple balun design, ".a shorted stub is required to match the circuit (quarterwave at 10 GHz).
However, I think TL3 rather degrade frequency characteritics as balun.
Is this description truely reasonable ?
Does article want to say this short stub is for adjusting balance in actual design ?