Hi, the datasheet of SR4L034, page 15 and 26 doesn't show the short between pin 2 and 3 (SC1,SC2). Please confirm that the short should be there also when no active tuning is used. We have the short on our prototype board and get high reflection between 800-900 MHz compared to the SR4L034-EVB-1.
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.