Transformer-based distributed multicore oscillator and integrated circuit and terminal thereof
US12191808B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2024 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Sep 9, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention belongs to the field of radio frequency integrated circuit technology, and specifically relates to a transformer-based distributed multicore oscillator and an integrated circuit and a terminal thereof. The oscillator includes four MOS transistors M1˜M4, two transformers T1 and T2, two coarse capacitors arrays CG1 and CG2, two fine capacitors arrays CD1 and CD2, two tail inductances Ltail1 and Ltail2. A first cross-coupled transistors pair is constisted by two MOS transistors M1 and M2, and a second cross-coupled transistors pair is constisted by two MOS transistors M3 and M4. Two pair are adjacent and are set in centre of the layout. Two signal output ports are defined by two drain regions of any two MOS transistors from the two pairs. The present invention synchronously solves the problem of high thermal phase noise and low-frequency flicker phase noise in existing oscillators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.