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Archives

Monthly Archive for: "March, 2012"
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0
20
By Doug Jorgesen
In Directional Couplers, Quadrature Hybrids
Posted March 28, 2012

Directional vs Dual Directional Microwave Couplers

This will be in an upcoming app note, but I couldn’t find a good explanation on the internet of the difference between a directional coupler and a dual directional coupler, so here it is: A [...]

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0
0
By Doug Jorgesen
In Mixers
Posted March 23, 2012

World Record IP3/Linearity Performance

Check out this video: This video demonstrates world record linearity performance. This is a standard two tone test with increasing local oscillator drive power. The device under test is a T3 [...]

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 Microwave mixers are active devices
0
0
By Doug Jorgesen
In Mixers
Posted March 20, 2012

Microwave mixers are active devices

One of the misconceptions we frequently encounter is the idea that a mixer is a passive device. Since it has loss and there is no DC bias, it is considered passive unless a gain element is added. [...]

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 How do signals cancel in a microwave power divider?
3
0
By Doug Jorgesen
In Power Dividers
Posted March 14, 2012

How do signals cancel in a microwave power divider?

On Tuesday, while we were debating over the theoretical explanations of the mega-high linearity T3 Mixer, Ferenc asked me to answer a seemingly very simple question: when you combine two sine [...]

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