A low-complexity planar antenna array for wireless communication applications: performance analysis and beamforming

Authors:
Moon-Sik Lee
Affiliations:
Information Systems Laboratory, Department of Electrical Engineering, Stanford University, Stanford, CA and Electronics and Telecommunications Research Institute, Daejeon, Korea
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

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Abstract

A low-complexity planar antenna array with antenna switching for wireless communication applications is addressed. The planar array consists of N1 linear antenna arrays where each linear antenna array consists of N2 receiving antennas. In each cycle, the receiving antennas on each linear antenna array are switched to the single receiving channel in turn from the 1st antenna to the N2th antenna. We first derive the Cramér-Rao lower bound (CRLB) expressions for estimating the azimuth angle, elevation angle, velocity, and range using the considered planar array. We then propose a wideband beamforming algorithm for estimation of the source parameters. The proposed algorithm called the wideband Capon beamformer uses the time-varying steering vector model.