Title :
Low power and high gain double-balanced mixer dedicated to 77 GHz automotive radar applications
Author :
Mariano, A. ; Taris, T. ; Leite, B. ; Majek, C. ; Deval, Y. ; Kerhervé, E. ; Bégueret, J.B. ; Belot, D.
Author_Institution :
IMS Lab., Univ. of Bordeaux, Bordeaux, France
Abstract :
In this paper, we present a mixer implemented in a 130 nm BiCMOS technology dedicated to 77 GHz automotive radar applications. The architecture is based on a double-balanced Gilbert cell with integrated transformer-based Baluns. Interconnections between devices, capacitor accesses and Tee-junctions are modeled using EM software in order to improve the simulation accuracy. The measurement results of the circuit exhibit a conversion gain and a SSB noise figure of 18.5 dB and 13.8 dB respectively over a 74 to 81 GHz band. Supplied under 2.5 V the power consumption is 80 mW and the ICP1 is -13 dBm. The transformer-based Balun allows a good input matching at the RF input port over a 16 GHz range from 72 to 88 GHz.
Keywords :
BiCMOS integrated circuits; baluns; mixers (circuits); road vehicle radar; BiCMOS technology; automotive radar application; double-balanced Gilbert cell; frequency 77 GHz; high gain double-balanced mixer; integrated transformer-based baluns; low power double-balanced mixer; power 80 mW; size 130 nm; voltage 2.5 V; Frequency measurement; Gain; Impedance matching; Integrated circuit modeling; Mixers; Noise measurement; Radio frequency;
Conference_Titel :
ESSCIRC, 2010 Proceedings of the
Conference_Location :
Seville
Print_ISBN :
978-1-4244-6662-7
DOI :
10.1109/ESSCIRC.2010.5619750
