A 1.8-GHz monolithic LC voltage-controlled oscillator

Abstract

A new monolithic LC voltage-controlled oscillator (VCO) is described. The circuit does not require any external components and an experimental version realized a 200-MHz tuning range at 1.8 GHz. On-chip inductors are used to fabricate the LC tuned circuits used in the oscillator.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>