We designed a PCB with the SR4G013. The feed is shorted to GND, as described in the datasheet. We measured the antenna impedance with a VNA, resulting in an impedance of 1.5 + j28.5 Ohm, which is way of. We suspect the short of the feed to GND has something to do with the low real impedance, could it be that we did something wrong with our design?
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.