This paper evaluates the performance of the digitally tunable capacitor phase shifter, mounted on a phased antenna array, in the frequency range from 5 to 6 GHz. It is based on the WS1042, a single-chip, fully-integrated tunable RF capacitor featuring four high resolution, tunable MEMS capacitors under control of a MIPI RFFE serial interface. The design of the phased antenna array consists of four quarter wavelength dipoles printed on the short edge of an FR4 substrate. Simulations including 70° and 105° phase shift demonstrated that the array can steer a beam wider than 80° and 100° respectively with a maximum gain of 7 dBi. The measurements, carried out in the MVG SG24, confirm that the prototype allows to reach the same scan angle observed in the simulations, but highlight a significant decrease in gain of 5 dB, due to the loss introduced by the four phase shifters and the port divider.
|Titel||13th European Conference on Antenna and Propagation (EuCAP)|
|Publikationsdato||20 jun. 2019|
|Status||Udgivet - 20 jun. 2019|
|Begivenhed||The 13th European Conference on Antennas and Propagation - Krakow, Krakow, Polen|
Varighed: 31 mar. 2019 → 5 apr. 2019
|Konference||The 13th European Conference on Antennas and Propagation|
|Periode||31/03/2019 → 05/04/2019|