A fully differential low-power high-linearity 77-GHz SiGe receiver frontend for automotive radar systems

Author

Kissinger, Dietmar ; Sewiolo, Benjamin ; Forstner, Hans-Peter ; Maurer, Linus ; Weigel, Robert

Author_Institution

Inst. for Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany

fYear

2009

fDate

20-21 April 2009

Firstpage

1

Lastpage

4

Abstract

This paper presents a single-chip receiver frontend consisting of a low-noise amplifier and an active downconversion mixer, intended for application in automotive radar systems at 77 GHz. The circuit has been implemented in a SiGe:C HBT technology with f_t/f_max = 200/250 GHz and can operate either fully differential or in single-ended mode. The receiver frontend shows a conversion gain of 24 dB and a single sideband noise figure of 14 dB when driven single-ended. Linearity measurements show a 1 dB input referred compression point of -10 dBm. The circuit draws 40 mA from a 3.3 V supply and occupies a chip area of 728 times 1028 mum² including bond pads.

Keywords

Ge-Si alloys; heterojunction bipolar transistors; low noise amplifiers; millimetre wave receivers; mixers (circuits); radar receivers; road vehicle radar; semiconductor materials; HBT technology; SiGe; active downconversion mixer; automotive radar systems; compression point; current 40 mA; differential low-power high-linearity receiver frontend; frequency 200 GHz; frequency 250 GHz; frequency 77 GHz; gain 24 dB; linearity measurements; low-noise amplifier; noise figure 14 dB; single-chip receiver frontend; voltage 3.3 V; Automotive engineering; Circuits; Gain; Germanium silicon alloys; Heterojunction bipolar transistors; Linearity; Low-noise amplifiers; Noise figure; Radar applications; Silicon germanium;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Microwave Technology Conference, 2009. WAMICON '09. IEEE 10th Annual

Conference_Location

Clearwater, FL

Print_ISBN

978-1-4244-4564-6

Electronic_ISBN

978-1-4244-4565-3

Type

conf

DOI

10.1109/WAMICON.2009.5207253

Filename

5207253