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LC oscillator design at 10-GHz using substrate capacitance with scalable varactor parameters extraction technique
Conference proceeding

LC oscillator design at 10-GHz using substrate capacitance with scalable varactor parameters extraction technique

T. Hui Teo, Yoncy-Zhong Xiong, Jeffrey Shiang Fu, Leong Tan and EuMA
2005 European Microwave Conference : 4-6 October 2005, Vol.1, pp.665-668
01/01/2005
DOI: https://doi.org/10.1109/EUMC.2005.1608944

Abstract

Engineering Engineering, Electrical & Electronic Science & Technology Technology
Design of quadrature oscillator at 10-GHz is demonstrated, which involved development of direct parameter extraction technique of scalable varactor. The varactor is used in the tank circuit. The effects of the substrate parasitic of SiGe in quadrature LC oscillator design was also investigated. Exploiting the substrate effect and accurate device characterization, a quadrature oscillator with -106-dB phase noise at 1-MHz offset using 2.50-V single supply was measured. The core oscillator consumes only 1.6-mA each at 10-GHz.

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