A Modulator-less Beam Steering Transmitter based on a revised DDS-PLL Phase Shifter Architecture

This paper details the design and implementation of a modulator-less beam steering transmitter based on a revised DDS-PLL phase shifter architecture. The proposed topology targets low data rate communications for Internet-of-Things systems, and has been demonstrated using an FPGA evaluation board an...

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Bibliographic Details
Published in:Journal of Communications Software and Systems 2018-03, Vol.14 (1), p.18-26
Main Authors: D'Amato, Giulio, Avitabile, Gianfranco, Coviello, Giuseppe, Talarico, Claudio
Format: Article
Language:English
Subjects:
beam steering
direct digital synthesizer (DDS)
Internet-of-Things (IoT)
low data rate communications
modulator-less
phase-locked loop (PLL)
polar transmitter
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Summary:This paper details the design and implementation of a modulator-less beam steering transmitter based on a revised DDS-PLL phase shifter architecture. The proposed topology targets low data rate communications for Internet-of-Things systems, and has been demonstrated using an FPGA evaluation board and a custom PCB with four PLLs centered at 2.453-GHz. Measured system performance for an experimental 32-kbps data rate achieved through a 16-PSK modulation scheme are discussed. The proposed architecture is frequency independent, can be used in multi-band devices and has the potential for being integrated as an RF System-on-Chip.
ISSN:1845-6421
1846-6079
DOI:10.24138/jcomss.v14i1.439