asked by
How close can I have the trace antenna to a ground plane?
I have a half-wave dipole antenna that is near a capacitive sense touch button. Would there be any interference between the two? How close can they be to each other?

Please log in or register to answer this question.

1 Answer

answered by

Yes, there will be interference between the two since the capacitive touch button is a metal conductor. Metal close to the antenna will reduce the bandwidth of the antenna and move the resonant frequency requiring the antenna to be tuned in the presence of the button.

We have two reflector antennas that are 1.6mm away from ground but these are single band resonant antennas that do not require a lot of bandwidth.

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