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I know you quoted the article, but this equation

> w = 300 Mm / 2.437 GHz

Has the wrong unit for c, it's missing the "per second"

We can change the units to mm*GHz, then the division by GHz cancels out and we end up with millimeters. I studied this in the USA, so the number we learned was 11.8 GHz*inches.

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