Title :
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
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;
Conference_Titel :
Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-002-6
DOI :
10.1109/EMICC.2007.4412653
