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

fYear

2010

fDate

14-16 Sept. 2010

Firstpage

490

Lastpage

493

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;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC, 2010 Proceedings of the

Conference_Location

Seville

ISSN

1930-8833

Print_ISBN

978-1-4244-6662-7

Type

conf

DOI

10.1109/ESSCIRC.2010.5619750

Filename

5619750