A 10-bit active RF phase shifter for 5G wireless systems

A 10-bit active RF phase shifter for 5G wireless systems

This paper presents an active RF phase shifter with 10 bit control word targeted toward the upcoming 5G wireless systems. The circuit is designed and fabricated using 45 nm CMOS SOI technology. An IQ vector modulator (IQVM) topology is used which provides both amplitude and phase control. The design...

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Bibliographic Details
Published in:2017 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC) pp. 1 - 4
Main Authors: Sethi, Alok, Aikio, Janne P., Shaheen, Rana A., Akbar, Rehman, Rahkonen, Timo, Parssinen, Aarno
Format: Conference Proceeding
Language:English
Published: IEEE 01-10-2017
Subjects:
5G mobile communication
Artificial intelligence
beamforming
CMOS
Gain
Integrated circuits
IQVM
Phase shifters
phase shifting
phased arrays
Radio frequency
SOI
Topology
wireless communications
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Summary:This paper presents an active RF phase shifter with 10 bit control word targeted toward the upcoming 5G wireless systems. The circuit is designed and fabricated using 45 nm CMOS SOI technology. An IQ vector modulator (IQVM) topology is used which provides both amplitude and phase control. The design is programmable with exhaustive digital controls available for parameters like bias voltage, resonance frequency, and gain. The frequency of operation is tunable from 12.5 GHz to 15.7 GHz. The mean angular separation between phase points is 1.5 degree at optimum amplitude levels. The rms phase error over the operating band is as low as 0.8 degree. Active area occupied is 0.18 square millimeter. The total DC power consumed from 1 V supply is 75 mW.
DOI:10.1109/NORCHIP.2017.8124958