A fundamental 229-240 GHz VCO with integrated dynamic frequency divider chain
Title of conference publication:
2016 46th European Microwave Conference (EuMC)
Conference title:
European Microwave Conference (46., 2017, London)
Venue:
London, UK
Year of conference:
2016
Date of conference beginning:
04.10.2016
Date of conference ending:
06.10.2016
Publishing institution:
IEEE
Year:
2016
Pages from - to:
489-492
Language:
Englisch
Abstract:
A fundamental 229-240 GHz voltage-controlled oscillator (VCO) driving directly a divide-by-8 dynamic frequency divider chain is presented. To our best knowledge, this is the highest reported fundamental VCO integrated with a frequency divider in silicon. Furthermore, the high-frequency divider operational range up to 240 GHz is a record value for dynamic dividers in silicon. The down-converted signal (<; 30 GHz) at the output of the divider chain has a measured constant single-ended power of ~-11.5 dBm within the VCO operation range. The presented circuit makes possible the addition of further low-frequency dividers and a phase-locked loop (PLL) needed for the stabilization of a VCO. The circuit is fabricated in a 130 nm SiGe BiCMOS technology with fT/fmax = 250/370 GHz.