Comments on Low loss impedance matching without a transformer
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Low loss impedance matching without a transformer
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I have a signal at 10 MHz produced from a 50 Ω source. How can I match that to a 300 Ω load with low losses without using an RF transformer (space constraints)? Are there any circuits and formulas that can help me achieve this?
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As an alternative to doing the math, as detailed in Andy's answer, you can use a graphical aid called a Smith chart:
These were used routinely before computers to match transmitters to antennas. The math behind them is what Andy described. See the Wikipedia page for details, which is where the image above was copied from.
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