A 26-GHz LC-QVCO in 0.13-μm CMOS

A 26 GHz quadrature voltage controlled oscillator designed in a 0.13-μm CMOS process is presented. It consists of two differential oscillators coupled to oscillate in quadrature through transistors and mutual inductance between the source nodes. The oscillator measures a frequency tuning range of 3.1%, a worst case phase noise of -96 dBc/Hz at 1 MHz offset over the tuning range at a 1.35 V supply and a power consumption of 24 mW.