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

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.

[1]  D. Knoll,et al.  Novel collector design for high-speed SiGe:C HBTs , 2002, Digest. International Electron Devices Meeting,.

[2]  U.R. Pfeiffer,et al.  A 77 GHz SiGe power amplifier for potential applications in automotive radar systems , 2004, 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers.

[3]  N. Okumura,et al.  A 600 MHz single-chip multiprocessor with 4.8 GB/s internal shared pipelined bus and 512 kB internal memory , 2003, 2003 IEEE International Solid-State Circuits Conference, 2003. Digest of Technical Papers. ISSCC..

[4]  Hans-Martin Rein,et al.  SiGe regenerative frequency divider operating up to 63 GHz , 1999 .

[5]  H.-M. Rein,et al.  Fully integrated SiGe VCOs with powerful output buffer for 77-GHz automotive Radar systems and applications around 100 GHz , 2004, IEEE Journal of Solid-State Circuits.

[6]  Gregory G. Freeman,et al.  100 GHz dynamic frequency divider in SiGe bipolar technology , 2003 .

[7]  M. Wurzer,et al.  86 GHz static and 110 GHz dynamic frequency dividers in SiGe bipolar technology , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[8]  A. Hajimiri,et al.  A Wideband 77-GHz, 17.5-dBm Fully Integrated Power Amplifier in Silicon , 2006, IEEE Journal of Solid-State Circuits.

[9]  Li Wang,et al.  Low power frequency dividers in SiGe:C BiCMOS technology , 2006, Digest of Papers. 2006 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems.

[10]  A. Rylyakov,et al.  96-GHz static frequency divider in SiGe bipolar technology , 2004, IEEE Journal of Solid-State Circuits.