Title :
Embedded DiCAD linear phase shifter for 57–65GHz reconfigurable direct frequency modulation in 90nm CMOS
Author :
LaRocca, Tim ; Liu, Jenny ; Wang, Frank ; Chang, Frank
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA
Abstract :
A digitally controlled artificial dielectric (DiCAD) differential transmission line is designed to perform agile linear phase shift over 100deg with thermometer-coded 16 step control. It also operates with a 16 gain-step VGA to enable re-configurable and direct-frequency modulation at 60 GHz with 2562 states (1.1deg angular and 0.0007 magnitude resolutions) and -31 dB static EVM for multiple PSK/QAM modulations. The modulator uses 0.33 mm2 core area in 90 nm CMOS and consumes 10 mA at 1 V.
Keywords :
CMOS digital integrated circuits; dielectric devices; digital control; field effect MIMIC; frequency modulation; millimetre wave phase shifters; quadrature amplitude modulation; quadrature phase shift keying; telecommunication control; transmission lines; 90 nm CMOS; VGA; current 10 mA; differential amplifier; digitally controlled artificial dielectric differential transmission line; embedded DiCAD linear phase shifter; frequency 57 GHz to 65 GHz; millimeter wave phase shifter; multiple PSK-QAM modulation; quadrature amplitude modulation; reconfigurable direct frequency modulation; size 90 nm; static EVM; thermometer-coded control; voltage 1 V; Differential amplifiers; Digital control; Digital modulation; Frequency modulation; MOS devices; Permittivity; Phase modulation; Phase shifters; Quadrature amplitude modulation; Switches; CMOS; Differential amplifiers; Millimeter wave phase shifters; Permittivity; Quadrature amplitude modulation;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-3377-3
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2009.5135526
