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Title: An adaptive beamforming technique for UWB impulse transceiver
Authors: Qiu, Lei
Liu, Supeng
Fang, Zhongyuan
Zheng, Yuanjin
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Qiu, L., Liu, S., Fang, Z., & Zheng, Y. (2019). An adaptive beamforming technique for UWB impulse transceiver. IEEE Transactions on Circuits and Systems II: Express Briefs, 66(3), 417-421. doi:10.1109/TCSII.2018.2866614
Series/Report no.: IEEE Transactions on Circuits and Systems II: Express Briefs
Abstract: A two-channel beamforming ultra-wideband (UWB) impulse transceiver chip, which includes a beam steering TX controlled by a fractional delay locked loop and an adaptive RX that can self-tune the beamforming to the direction of incident pulses, is presented. The dual-channel timed array transmitter can generate UWB pulses in two separate transmitter paths with tunable path delay difference of 0~250 ps to achieve beam-steering capability. Each beamforming receiver channel has a measured continuous time delay between 0~250 ps. The proposed beamformer could provide maximum scan angle of up to ±60° for two antennas with about 8-cm spacing. Fabricated in 0.18-μm CMOS, the TX can beam steer across the full spatial range with resolution of 4°, and the RX can continuously scan the full range with resolution of 3°. The transmitter consumes 37 mA at 10 Mbps and receiver consumes 84 mA under 1.8-V power supply.
ISSN: 1549-7747
DOI: 10.1109/TCSII.2018.2866614
Schools: School of Electrical and Electronic Engineering 
Rights: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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