Title :
Analog baseband beamformer for use in a phased-array 60 GHz transmitter
Author :
Szortyka, Viki ; Raczkowski, Kuba ; Vandebriel, Roeland ; Kuijk, Maarten ; Wambacq, Piet
Author_Institution :
Imec, Heverlee, Belgium
Abstract :
This paper presents an analog baseband section that implements the beamforming functionality of a 40 nm digital low-power (LP) CMOS 60 GHz transmitter. An input 1dB compression point larger than 240 mVpeak over the whole band is obtained, in a circuit operating with a 1.1 V supply. The targeted phase shift resolution of 22.5 degrees is obtained. Fully automatic, digitally assisted DC offset compensation is also present on-chip. The current consumption is 70 mA.
Keywords :
CMOS analogue integrated circuits; array signal processing; compensation; low-power electronics; phase shifters; transmitters; DC offset compensation; analog baseband beamformer; analog integrated circuit; beamforming functionality; current 70 mA; digital low-power CMOS transmitter; frequency 60 GHz; phase shift resolution; phased-array transmitter; size 40 nm; voltage 1.1 V; voltage 240 mV; Array signal processing; Bandwidth; Baseband; Gain; Phase shifters; Repeaters; Transmitters; Analog integrated circuits; CMOS; current mode circuits; phase shifters; variable gain;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems (SiRF), 2012 IEEE 12th Topical Meeting on
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-1-4577-1317-0
DOI :
10.1109/SiRF.2012.6160127
