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Posts tagged impedance-matching

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Q&A Deriving resistor values for a taper pad attenuator

A taper pad is a resistive attenuator that maintains impedances on both ports and provides a specific amount of gain-loss ($A_{12}$): - I have derived formulas for each resistor (that I know to ...

2 answers  ·  posted 2mo ago by Andy aka‭  ·  last activity 2mo ago by a concerned citizen‭

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Q&A What effect will extreme temperatures have on impedance in a wire?

My scenario is this: radio equipment controlling an overhead crane inside a steel mill. Specifically it is used for transporting melting pots. With the current, unfortunate installation, the antenn...

1 answer  ·  posted 6mo ago by Lundin‭  ·  last activity 6mo ago by Olin Lathrop‭

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Q&A Filter Impedance Consideration

In a lot of textbooks, filters seem to be designed around a matching source and load impedance. However, If I have a filter stage between an antenna and an LNA, wouldn't I want the load impedance(i...

2 answers  ·  posted 2y ago by jm567‭  ·  last activity 2y ago by Olin Lathrop‭

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Q&A Low loss impedance matching without a transformer

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 ...

2 answers  ·  posted 2y ago by Andy aka‭  ·  last activity 2y ago by Andy aka‭