asked by
How will moving an antenna in-board by 5 mm affect its performance?
My application requires moving the antenna in from the edge of the PCB.

The PCB is round and about 2 inches in diameter and the antenna currently sits about 1 mm from the edge of the board.

As the the antenna is moved in-board, at what point will the performance be degraded?  In what ways will this manifest?

Can this be mitigated if the ground plane is pulled back along with moving the antenna in-board?

*Using the Fusca A10192H.

Please log in or register to answer this question.

1 Answer

answered by

Hi Isaac,

Fusca works optimally in the corner of a short edge of a rectangular PCB. However, that assumes that the whole PCB is flooded with ground, the FR4 is invisible to the antenna you only need worry about the copper (ground plane) - if you can replicate this shape on the circular PCB that would be ideal (see examples below). Can you provide a basic drawing showing the placement of Fusca and the shape of the copper ground plane/traces so I can better understand how you would like to do your layout?

Many Thanks


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