A 25 GHz quadrature voltage controlled ring oscillator in 0.12/spl mu/m SiGe HBT

A 25 GHz ring VCO is fabricated in a 0.12mum SiGe BiCMOS process. The VCO with a 3.3V supply consumes 32mA. The measured phase noise is -105dBc/Hz at 10MHz offset from the center frequency of 24.3 GHz. Design optimization techniques for high performance ring oscillators in a 0.12 mum SiGe HBT technology are discussed

[1]  a Manufacturable Technology , 2002 .

[2]  D. Kasperkovitz,et al.  A 9.8-11.5 GHz quadrature ring oscillator for optical receivers , 2001, Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169).

[3]  S. Jeng,et al.  Self-aligned SiGe NPN transistors with 285 GHz f/sub MAX/ and 207 GHz f/sub T/ in a manufacturable technology , 2002, IEEE Electron Device Letters.

[4]  Colombo Rodolphe Bolognesi.  BV $_rm CEOhbox--hbox BV_rm CBO$ Separation and Sharpness of Breakdown in High-Speed Bipolar Transistors , 2005 .

[5]  P. R. Smith,et al.  10 and 26 GHz differential VCOs using InP HBTs , 1996, 1996 IEEE MTT-S International Microwave Symposium Digest.

[6]  James A. Crawford.  Frequency Synthesizer Design Handbook , 1994 .

[7]  B. Gaucher,et al.  SiGe bipolar transceiver circuits operating at 60 GHz , 2005, IEEE Journal of Solid-State Circuits.

[8]  A. Hajimiri,et al.  Jitter and phase noise in ring oscillators , 1999, IEEE J. Solid State Circuits.

[9]  C. Bolognesi.  BV/sub CEO/--BV/sub CBO/ separation and sharpness of breakdown in high-speed bipolar transistors , 2005, IEEE Electron Device Letters.

[10]  L. Larson,et al.  A wide-bandwidth Si/SiGe HBT direct conversion sub-harmonic mixer/downconverter , 2000, IEEE Journal of Solid-State Circuits.

[11]  Behzad Razavi,et al.  Design of Analog CMOS Integrated Circuits , 1999 .

[12]  Giuseppe Palmisano,et al.  Design of bipolar RF ring oscillators , 1999, ICECS'99. Proceedings of ICECS '99. 6th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.99EX357).

[13]  Xiang Guan,et al.  A fully integrated 24-GHz eight-element phased-array receiver in silicon , 2004, IEEE Journal of Solid-State Circuits.

[14]  C.A.T. Salama,et al.  A 20-GHz InP-HBT voltage-controlled oscillator with wide frequency tuning range , 2001 .