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December 21st 04, 08:27 PM
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In message , Richard Clark
writes On 21 Dec 2004 14:23:10 GMT, (PDRUNEN) wrote: Hi All, I was reviewing a 75 to 50 ohm resistive matching network using two resistors, the insertion lost was 5.7 db. Hi OM, Snips However, this is not the best design for a matching network, they are usually three resistors in either a PI or T configuration. Several manufacturers of precision matching pads might disagree! Two resistors is enough, although you have to remember to add a rather odd number (unless the measuring equipment can add it for you). If you add a third resistor, you can make the correction a straight 6dB. That's probably the only virtue. Ian. -- |
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