Why we use 50 Ohm Impedance for Impedance Matching?

Siddharth Bind Siddharth Bind

Siddharth Bind

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发布日期: 2016年7月6日
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Because a coaxial transmission line impedance of 77 ohms provides the lowest loss, while 30 ohms provides the highest power handling for a given cable size, both assuming air dielectric and identical inner and outer conductor material...So we use (77+30)/2=53.5 around 50 Ohm.

Dinesh Kumar

Designer Specialist at Schlumberger

7 年

Are all transmission lines carries the common 77 ohm impedance ? and I am trying to figure it out how 30 ohm is derived. Can you please provide clarity on it, It would be very helpful.

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