A low phase noise, wide range QVCO for MICS, and ISM applications

Abstract

A Quadrature Voltage Controlled Oscillator (QVCO) has been designed and simulated at 0.18µm technology, 1.8 V supply voltage. The design is aimed for MICS/ ISM devices. The design offers a small size, low power consumption, low phase noise, and wide frequency range (200-827 MHz) of operation. The obtained phase noise (at 37° C) @ 160 KHz offset for 404.7 MHz oscillation is −100dBc/Hz and for 433 MHz oscillation at 160KHZ offset is at −99.5 dBc/Hz with 0.9mW power consumption.