Inductive-capacitive voltage-controlled oscillator with increased common-mode impedance
US12355399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2023 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Aug 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0062
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage-controlled oscillator (VCO) is disclosed that includes an inductor-capacitor (LC) tank coupled with a first voltage supply node, a pair of cross-coupled transistors that are coupled with the LC tank and coupled with each other at a tail node, and a high-frequency current return path to the first voltage supply node. The high-frequency return path includes a first decoupling capacitor coupled with the first voltage supply node and a second voltage supply node, and a first inductor coupled with the tail node and the second voltage supply node. The first inductor is formed as a first conductive trace and has a quality factor (Q) value of 25 or greater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.