Title
A 13.2-dBm, 138-GHz I/Q RF-DAC with 64-QAM and OFDM free-space constellation formation.
Abstract
An I/Q RF-DAC featuring two 6-bit DAC elements driven in quadrature, each with its own on-die antenna, and a total EIRP of 13.2 dBm, is demonstrated in a 45-nm SOI-CMOS technology. The 129-143-GHz carrier signal is first amplified by the 30-dB gain LO path and is directly modulated by the 12 baseband bit streams, without linear upconversion or power amplification. QPSK, 8-PSK, 16-QAM, 32-QAM, and 64-QAM single-carrier and OFDM constellations are formed in free-space, measured above the die at data rates up to 12 Gb/s, and at distances over 15 cm. The prototype consumes a total of 1.25 W, with an energy efficiency of 104 pJ/b.
Year
Venue
Keywords
2017
ESSCIRC 2017 - 43RD IEEE EUROPEAN SOLID STATE CIRCUITS CONFERENCE
CMOS,DAC,digital transmitter,direct modulation,QAM,RF-DAC,SOI
Field
DocType
Citations 
Baseband,Quadrature amplitude modulation,Computer science,Amplitude-shift keying,Electronic engineering,Quadrature (mathematics),dBm,Electrical engineering,Orthogonal frequency-division multiplexing,Photon upconversion,Phase-shift keying
Conference
0
PageRank 
References 
Authors
0.34
3
4
Name
Order
Citations
PageRank
Stefan Shopov153.05
Ozan D. Gurbuz261.24
Gabriel M. Rebeiz310025.24
Sorin P. Voinigescu422153.57