Tunable Passive Polyphase Network

Thread Starter

BR-549

Joined Sep 22, 2013
4,938
OK...found another interesting circuit.

Tunable, passive, poly-phase network.

I was doing a general search for I Q modulators and came across this.

http://cdn.intechopen.com/pdfs/8996...y_for_wireless_communication_applications.pdf

Figure 14. And don't presume I read everything down to this point. I like the pictures.

Anyhow.....what a great idea. Should have thought of it.

Using a MOS transistor....as a variable resistor......for precise resistance control per node.

Has anyone seen this before?
 
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