Poziv na online predavanje: "Closed-Form Design of Optimum Linear Arrays Based on Raised-Cosine Beampattern"

Sažetak predavanja:

Linear arrays forming pencil beams with slowly decaying sidelobes make a good trade-off among excitation dynamic range ratio, beam efficiency, directivity, sidelobe level, and beamwidth. Popular arrays with such sidelobe behavior are Taylor, Gauss, Gegenbauer, and second-kind Chebyshev. In this talk, we present a closed-form method for the design of pencil-beam arrays with a prescribed sidelobe level. The method exploits the least-squares approximation of a raised cosine function in the azimuth domain, thus bringing the beampattern with slowly decaying sidelobes. For common numbers of excitation coefficients and sidelobe levels, the presented arrays simultaneously exhibit the optimum beamwidth, dynamic range ratio, and directivity.

Životopis predavača:

Mateja Babic received the Master degree in Information and communication technology from the University of Zagreb Faculty of Electrical Engineering and Computing, Zagreb, Croatia, in 2016. In 2017 she enrolled in the Doctoral study at the same faculty. After the Master study, she has been employed in the Research and Development Centre of Ericsson Nikola Tesla d.d. in Zagreb, where she works as Software/Hardware Developer in the Radio Development Unit. In the unit, she is also a member of the Scientific Radio group in which she participates in various research activities. Her research interests are in the field of wireless communications, analog and digital beamforming, and antenna array design. She is a member of IEEE societies on Signal Processing, Antennas and Propagation, Microwave Theory and Techniques, and Circuits and Systems.