Implementation of wideband digital beam forming in the E-band

Publication Type:
Journal Article
Citation:
International Journal of Microwave and Wireless Technologies, 2011, 3 (3), pp. 259 - 266
Issue Date:
2011-06-01
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This paper reports the test results of a small-scale prototype that implements a digitally beam-formed phased antenna array in the E-band. A four-channel dual-conversion receive RF module for 71â€"76 GHz frequency band has been developed and integrated with a linear end-fire antenna array. Wideband frequency-domain angle-of-arrival estimation and beam-forming algorithms were developed and implemented using Orthogonal Frequency Division Multiplexing (OFDM) with Quadrature Phase-Shift Keying (QPSK) at 1 Gbps. Measured performance is very close to the simulated results and experimental data for an analogue-beam-formed array. This work is a stepping stone toward practical realization of larger hybrid arrays in the E-band. © 2011 Cambridge University Press and the European Microwave Association.
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