BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20240310T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20241103T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20250113T161225Z UID:9685D05F-5A1C-4DA9-9BC4-67568978700F DTSTART;TZID=America/New_York:20240710T120000 DTEND;TZID=America/New_York:20240710T130000 DESCRIPTION:The talk begins with a review of the fundamental and technologi cal limiting factors to the spectral purity of integrated RF oscillators\, and then proposes circuit solutions to break the phase noise barrier in s ilicon technology. Phase noise can be scaled by resorting to the multi-cor e approach\, provided mismatches among multiple oscillators are carefully considered. As an example\, a 16-core (voltage-controlled) oscillator demo nstrates -130dBc/Hz at 1MHz offset from 20 GHz minimum phase.\nA more eleg ant and efficient approach is then introduced. Leveraging the series reson ance of a tank\, the remarkably lower resistance rises considerably the ta nk active power\, thus enabling a remarkable improvement on the spectral p urity. Two 10GHz BiCMOS VCOs exploiting the concept are proposed. The meas ured minimum phase noise is −138 dBc/Hz at 1-MHz offset with 600mW from 1.2-V supply. Experimental results demonstrate the lowest phase noise ever reported by fully integrated RF oscillators in a silicon technology.\n\nS peaker(s): Prof Mazzanti\, \n\nAgenda: \nNoon - 1pm EST : DL with Q/A\n\nV irtual: https://events.vtools.ieee.org/m/421015 LOCATION:Virtual: https://events.vtools.ieee.org/m/421015 ORGANIZER:bshubha@ieee.org SEQUENCE:11 SUMMARY:IEEE PCJS SSCS DL : Prof Mazzanti : Breaking the Phase-Noise Barrie r with Multi-Core and Series-Resonance Harmonic Oscillators in BiCMOS Tech nology URL;VALUE=URI:https://events.vtools.ieee.org/m/421015 X-ALT-DESC:Description: <br /><p>The talk begins with a review of the funda mental and technological limiting factors to the spectral purity of integr ated RF oscillators\, and then proposes circuit solutions to break the pha se noise barrier in silicon technology. Phase noise can be scaled by resor ting to the multi-core approach\, provided mismatches among multiple oscil lators are carefully considered. As an example\, a 16-core (voltage-contro lled) oscillator demonstrates -130dBc/Hz at 1MHz offset from 20 GHz minimu m phase.&nbsp\;<br>A more elegant and efficient approach is then introduce d. Leveraging the series resonance of a tank\, the remarkably lower resist ance rises considerably the tank active power\, thus enabling a remarkable improvement on the spectral purity. Two 10GHz BiCMOS VCOs exploiting the concept are proposed. The measured minimum phase noise is &minus\;138 dBc/ Hz at 1-MHz offset with 600mW from 1.2-V supply. Experimental results demo nstrate the lowest phase noise ever reported by fully integrated RF oscill ators in a silicon technology.</p><br /><br />Agenda: <br /><p>Noon - 1pm EST : DL with Q/A</p> END:VEVENT END:VCALENDAR