Abstract
This paper presents a mmW frequency generation stage aimed at minimizing phase noise via waveform shaping and harmonic extraction while suppressing flicker noise upconversion via proper harmonic terminations. A second-harmonic tank resonance is assisted by a proposed embedded decoupling capacitor inside a transformer for shortest and well controlled common-mode current return path. Class-F operation with third-harmonic boosting and extraction techniques allow maintaining high quality factor of a 10 GHz tank at the 30 GHz frequency generation while providing implicit divide-by-3 functionality. The proposed 27.3-31.2 GHz oscillator is implemented in 28-nm CMOS. It achieves phase noise of-106 dBc/Hz at 1-MHz offset and figure-of-merit (FoM) of -184 dB at 27.3GHz. Its flicker phase-noise (1/f3) corner of 120 kHz is an order-of-magnitude better than currently achievable at mmW.
Original language | English |
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Title of host publication | ESSCIRC 2017 - 43rd IEEE European Solid State Circuits Conference |
Publisher | IEEE |
Pages | 87-90 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-5090-5025-3 |
ISBN (Print) | 978-1-5090-5026-0 |
DOIs | |
Publication status | Published - 2 Nov 2017 |
Externally published | Yes |
Event | ESSCIRC 2017: 43rd IEEE European Solid State Circuits Conference - Leuven, Belgium Duration: 11 Sept 2017 → 14 Sept 2017 |
Conference
Conference | ESSCIRC 2017 |
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Country/Territory | Belgium |
City | Leuven |
Period | 11/09/17 → 14/09/17 |
Keywords
- 30GHz
- 5G communication
- Low flicker noise corner
- Low phase noise
- Oscillator