dual band impedance match

[winglj]

Hi,
Is it possible to use Lump components (such as pi or L network) to design a impedance match network in two different frequencies? Any recommendations tutorial or articles?

Thanks in advance

 

[flatulent]

It is possible. You will need more elements. Now you have twice as many data points to fit.

 

[yibinhsieh]

You can design two bandpass filter and then cascode them together and finetune.

Yibin.

 

[biff44]

You certainly can, but you must understand the consequences of Foster's reactance theory.