10 GHz, Class-B, 0.5 V, 130 nm CMOS Cross-Coupled Oscillator Design Using Open-Loop Technique

Szczepkowski, Grzegorz and Farrell, Ronan (2012) 10 GHz, Class-B, 0.5 V, 130 nm CMOS Cross-Coupled Oscillator Design Using Open-Loop Technique. In: Communications and Radio Sciences Research Colloquium 2012, 28-29 March 2012, Royal Irish Academy.

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The paper presents a method for design of LC cross-coupled oscillators based on open-loop technique and its practical application leading to a high frequency CMOS oscillator prototype. Thanks to the proposed approach, main circuit parameters as loaded quality factor (responsible for phase noise performance of LC oscillator) and steady-state oscillation amplitude can be extracted, without the necessity of time consuming transient simulations. The presented method is not technology specific and allows fast calculations under changing bias conditions. The proposed 130 nm CMOS prototype operates 10 GHz from 0.5 V power supply achieving SSB phase noise of -113 dBc/Hz at 1 MHz offset from the carrier. Low power consumption of 1.09 mW RMS, has been obtained by biasing the oscillator devices to operate in class-B i.e. VGS =Vth.

Item Type: Conference or Workshop Item (Paper)
Keywords: Cross-Coupled Oscillator Design; Open-Loop Technique;
Academic Unit: Faculty of Science and Engineering > Electronic Engineering
Faculty of Science and Engineering > Research Institutes > Institute of Microelectronics and Wireless Systems
Item ID: 3959
Depositing User: Dr. Ronan Farrell
Date Deposited: 26 Oct 2012 10:03
Refereed: Yes
Funders: Science Foundation Ireland under Grant No. 10/CE/I1853

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