2 papers
eess.SP2025
DoA Estimation with Sparse Arrays: Effects of Antenna Element Patterns and Nonidealities
Niko Lindvall, Mikko Heino, Robin Rajamäki +2
This paper studies the effects of directional antenna element complex gain patterns and nonidealities in direction of arrival (DoA) estimation. We compare sparse arrays and classic…
eess.SP2025
3-20 GHz Wideband Tightly-Coupled Dual-Polarized Vivaldi Antenna Array
Niko Lindvall, Mikko Heino, Mikko Valkama
Very wideband apertures are needed in positioning, sensing, spectrum monitoring, and modern spread spectrum, e.g., frequency hopping systems. Vivaldi antennas are one of the promin…