QUESTION

asked by
reshown by
GNSS RAPTOR Antenna placement & ground size
Hi,

This is Rémi Chaudet from InVirtus Technologies.

We are developping a new device integrating dual band GNSS module, using the Raptor Antenna.

We had a first prototype version, following antenna reference board placement, with a ground plane of 75x40mm

(overall pcb size 85x40), which offers very good performances regarding signal reception.

Now we need to reduce pcb length. What minimal ground length would you suggest without impacting too much performances of the antenna? We currently have two design options: one with 58mm ground plane length and another one with 61mm ground plane length (width will remain 40mm). Would the matching network need to be adapted?

Best regards

Please log in or register to answer this question.

1 Answer

answered by
Hi Rchaudet,

I would recommend not going below the 61mm ground plane size as it will affect the lower band efficiency more quickly than the upper bands.
Best regards,

Geoff S.

Meet the moderators

Steve Bradburn

Senior Antenna Engineer at Antenova With over 25 years’ experience in manufacturing, test and design, Steve has a wealth of RF and measurement knowledge across many industry sectors.

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.

download-guide-image

Antennas: The Comparison Guide

Find the perfect antenna for your project

Download
...