Hyperabrupt-junction varactor for mmWave SiGe:C BiCMOS, enabling 77GHz VCO/TX with 13-15GHz tuning range

Vishal P Trivedi,James A Kirchgessner,Jay P John,P Welch,Donald A Morgan, Stanford J Stewart, R Peterman,D Hammock, J Nivison,Olin L Hartin,S Shams,I S Lim,Hao Li,Saverio Trotta,Didier Salle,W M Huang

Bipolar/BiCMOS Circuits and Technology Meeting（2010）

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Abstract

A millimeter-wave hyperabrupt-junction varactor (HAVAR) enabling 77 GHz VCO/TX with 13-15 GHz tuning range and better than -70 dBc/Hz phase noise at 100 kHz offset has been integrated in SiGe:C BiCMOS for automotive radar products. The HAVAR predominantly uses existing processes for low-cost integration and minimal process complexity. Optimization of TR-Q thru HAVAR width allows TR up to 2.7 and Qmin up to 10.

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Key words

bicmos integrated circuits,ge-si alloys,carbon,millimetre wave integrated circuits,varactors,voltage-controlled oscillators,bicmos,sige:c,tr-q thru havar,vco/tx,automotive radar products,frequency 100 khz,frequency 13 ghz to 15 ghz,frequency 77 ghz,millimeter-wave hyperabrupt-junction varactor,sige bicmos,vco,hyperabrupt junction,millimeter wave technology,varactor,phase noise,millimeter wave

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