Special Issue on IEEE International Conference of Electron Devices and Solid-State Circuits; Guest Editor: Jianguo MaNo Access

A LOW POWER PUSH–PUSH VCO USING MULTI-COUPLED LC TANKS

MAHALINGAM NAGARAJAN

Department of Electrical and Electronic Engineering, VIRTUS IC Design Centre of Excellence, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore

Corresponding author.

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KAIXUE MA

Department of Electrical and Electronic Engineering, VIRTUS IC Design Centre of Excellence, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore

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KIAT SENG YEO

Department of Electrical and Electronic Engineering, VIRTUS IC Design Centre of Excellence, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore

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, and

WEI MENG LIM

Department of Electrical and Electronic Engineering, VIRTUS IC Design Centre of Excellence, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore

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https://doi.org/10.1142/S0218126613400355Cited by:0 (Source: Crossref)

Abstract

A fully integrated push–push voltage controlled oscillator (VCO) working in K-band with a large tuning range and a low phase noise fabricated in a 0.18 μm SiGe BiCMOS technology is presented. Multi-coupled LC tanks are used to improve the tuning range, power consumption and phase noise. Digital tuning varactors are used to maintain a low VCO tuning sensitivity (K_VCO) and maximum frequency overlap. The VCO achieves a frequency tuning range (FTR) of 17% at 12 GHz, a phase noise of -106.62 dBc/Hz at 1 MHz offset and consumes 7 mW from 1.8 V supply.

Keywords:

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