SiGe millimeter-wave dynamic frequency divider with enhanced sensitivity incorporating a transimpedance stage

Author

Chartier, Sébastien ; Liu, Liu ; Fischer, Gerhard ; Glisic, Srdjan ; Höhnemann, Holger ; Trasser, Andreas ; Schumacher, Hermann

Author_Institution

Ulm Univ., Ulm

fYear

2007

fDate

8-10 Oct. 2007

Firstpage

84

Lastpage

87

Abstract

A Si/SiGe bipolar dynamic frequency divider designed for 77GHz/79GHz automotive radar is presented, which uses a transimpedance amplifier topology to improve sensitivity and operational bandwidth. Capable of operation for input frequencies from 22 GHz up to 93 GHz, the divider consumes only 35 mA at 5 V supply voltage and has a very compact die area of 295 x 475 mum². In addition, measurements show that the divider operates in the full radar frequency band (76 GHz-81 GHz) up to a temperature of 100degC.

Keywords

Ge-Si alloys; frequency dividers; millimetre wave amplifiers; road vehicle radar; sensitivity; Si-SiGe; automotive radar; frequency 77 GHz; frequency 79 GHz; millimeter-wave bipolar dynamic frequency divider; sensitivity; temperature 100 C; transimpedance amplifier topology; Automotive engineering; Bandwidth; Frequency conversion; Germanium silicon alloys; Millimeter wave radar; Operational amplifiers; Silicon germanium; Topology; Vehicle dynamics; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-002-6

Type

conf

DOI

10.1109/EMICC.2007.4412653

Filename

4412653