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?
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.
