A 258-GHz CMOS Transmitter with Phase-Shifting Architecture for Phased-Array Systems

This paper presents a 258-GHz CMOS transmitter with phase-shifting capability for phased-array systems targeting sixth-generation mobile network (6G). Phase shifters are inserted in local oscillator (LO) paths to limit the bandwidth required of the phase shifters. A power detector is used to detect...

Full description

Saved in:
Bibliographic Details
Main Authors: Hagiwara, Toyoyuki, Yamaki, Natsu, Sekine, Koki, Sakai, Hajime, Sahara, Kenta, Takano, Kyoya, Hara, Shinsuke, Lee, Sangyeop, Dong, Ruibing, Tanoi, Satoru, Kubo, Shunichi, Miura, Satoshi, Kasamatsu, Akifumi, Yoshida, Takeshi, Amakawa, Shuhei, Sakakibara, Kunio, Umeda, Yohtaro, Fujishima, Minoru
Format: Conference Proceeding
Language:English
Subjects:
300-GHz band
6G mobile communication
CMOS
Detectors
Modulation
Phase shift keying
phase shifter
Phase shifters
Semiconductor device modeling
sixth-generation mobile network (6G)
terahertz
transmitter
Transmitters
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a 258-GHz CMOS transmitter with phase-shifting capability for phased-array systems targeting sixth-generation mobile network (6G). Phase shifters are inserted in local oscillator (LO) paths to limit the bandwidth required of the phase shifters. A power detector is used to detect and calibrate the phase difference between a pair of phase shifters in the two power-combined paths of the transmitter. It is fabricated using a 40-nm CMOS technology. A data rate of 16 Gb/s and output power of −6.8 dBm are achieved with quaternary phase-shift keying (QPSK). The calibration procedure of the phase shifters is verified by simulation.
ISSN:2576-7216
DOI:10.1109/IMS19712.2021.9574976