chase.ng wrote on May 10th, 2008, 7:36pm:Isn't that the best matching condition will yield very small S11 number? -2.17 still seems too high.
It depends on your applications.
If you have importance in reflection, this return loss is too large.
But if you have importance in transmitted power, this return loss could be acceptable.
chase.ng wrote on May 10th, 2008, 7:36pm:Does that means i have no choice but to use resistive matching?
This also depends on your applications.
If you invoke hybrid matching of resistive and reactive, you can achieve better S11.
What application do you intend to design ?
What signal scheme do you apply ?
Is there frequency channel control signal. e.g. for PLL ?
Is there any possibility to change matching networks using such control signal ?
Varactor, Pin-diode, etc...