Low Phase Noise, Very Wide Band SiGe Fully Integrated VCO

Romanò, Luca ; Minerva, Vito ; Cavalieri d’Oro, Silvia ; Politi, Marco ; Samori, Carlo ; Pagani, Maurizio (2004) Low Phase Noise, Very Wide Band SiGe Fully Integrated VCO. In: Gallium Arsenide applications symposium. GAAS 2004, 11—12 Ottobre, Amsterdam.

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Abstract

This paper presents a fully integrated, low phase noise SiGe voltage-controlled oscillator with very wide band for digital radio link applications. The VCO has been fabricated using IBM 0.5µm SiGe5AM process. A measured 38.5% tuning range around 5.2 GHz and a singlesideband phase noise varying between –100 and –96 dBc/Hz at 100kHz offset from carrier have been achieved. The oscillator’s core draws 9 to 17mA from a 3V supply voltage.

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