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September 13th 05, 05:07 PM
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On Tue, 13 Sep 2005 10:04:56 -0500, Bob Bob wrote:
Err why? 50r to 100r = 122r 50r to 75r = 90r Cecil already gave you the answer. A 90-degree line is called a "geometric mean" transformer. The required impedance is the square root of the product of the desired R and the load R. Here's a little tutorial: http://www.microwaves101.com/encyclo...uarterwave.cfm |
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