asked by
What are good PI matching starting values for SR42W009 antenna?
I read SR42W009 datasheet but i can't find them. I also saw that there is a SR42W009 EVB but i can't find the evaluation board datasheet with the components used. I need some PI matching starting values, that can be optimized after the design of the board.

Please log in or register to answer this question.

1 Answer

answered by


A series 1.8nH inductor followed by a shunt 1.8pF capacitor to ground between your radio and the series component would be a good start.

If you need further assistance with tuning you can send one you your devices to us to tune for you. If this is of interest to you, you can send a request to

Best regards,

Geoff S.

Meet the moderators

Yu Kai Yeung

Antenna Engineer at Antenova Yu Kai is an antenna expert with over 10 years of experience in the design and testing of antennas. He has experience helping customers with certification testing, combined with his knowledge of RF measurement procedures.

Raymond Lee

Senior Antenna Engineer at Antenova Raymond has a wealth of experience in RF and antennas across many industry sectors. He has over 20 years of experience in electronics design and manufacturing.


Antennas: The Comparison Guide

Find the perfect antenna for your project