asked by
SR4C033-L Groundplane


we are currently working on a PCB with a SR4C033 for a customer. The datasheet recommends a ground plane of 100mm. Unfortunately the dimensions of the enclosure is already fix (the PCB is a redesign from GMS to NB-IoT). Is the ground Plane we have sufficient? How great is the power loss we can expect? (compare to a 100mm ground plane). See the dimensions in the picture. 

Best regards


Please log in or register to answer this question.

1 Answer

answered by

Hi Willi,

SR4C033 is a corner mount antenna. Given your current layout I would recommend switching to SR4C033-R, moving to the corner and it should be free of ground along the top edge as shown in Section 12 of the data sheet.

In terms of performance, it would depend which bands (frequencies) you require; the lower the frequency the bigger the effect of a short ground plane. Please contact and your regional representative will be in touch to give you a fully detailed response.

Many Thanks


Meet the moderators

Nansen Tsai

Engineering Manager Nansen has a wealth of technical RF and wireless knowledge, with particular expertise in RF development and problem-solving.

Geoff Schulteis

Senior Antenna Apps Specialist at Antenova Geoff is an antenna design-in and OTA measurement specialist. His knowledge of FCC and world carrier requirements is second-to-none.

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.


Antennas: The Comparison Guide

Find the perfect antenna for your project