Title :
A 48 GHz 6-bit LO-path phase shifter in 40-nm CMOS for 60 GHz applications
Author :
Chuang Lu ; Matters-Kammerer, Marion K. ; Mahmoudi, R. ; Baltus, Peter G. M. ; Habekotte, Ernst ; van Hartingsveldt, Koen ; van der Wilt, Floris
Author_Institution :
Mixed-Signal Microelectron. Group, Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
This paper presents a 48 GHz high resolution LO-path phase shifter implemented in 40-nm low-power CMOS technology. The full 360° phase shift tuning is implemented by a switched capacitor loaded tunable transmission line for fine tuning, in combination with a selection of one out of the N×45° phase steps available from the frequency divider-by-4 for coarse tuning. The measured phase shift resolution is 5.4° between 44 GHz and 54 GHz, which offers about 6-bit resolution. The chip area of the core circuitry is 550μm×260μm, and the total current consumption is 14.1 mA from a 1.2 V supply voltage.
Keywords :
CMOS analogue integrated circuits; circuit tuning; frequency dividers; low-power electronics; phase shifters; switched capacitor networks; transmission lines; coarse tuning; current 14.1 mA; current consumption; fine tuning; frequency 44 GHz to 54 GHz; frequency divider; high resolution LO-path phase shifter; low-power CMOS technology; phase shift resolution measurement; phase shift tuning; size 40 nm; switched capacitor loaded tunable transmission line; voltage 1.2 V; CMOS integrated circuits; Frequency conversion; Phase shifters; Phased arrays; Power transmission lines; Transmission line measurements; Tuning;
Conference_Titel :
ESSCIRC (ESSCIRC), 2013 Proceedings of the
Conference_Location :
Bucharest
Print_ISBN :
978-1-4799-0643-7
DOI :
10.1109/ESSCIRC.2013.6649075
