Author(s)

Masoud Sabaghi^1*, Saeid Marjani², Abbas Majdabadi¹

¹Laser and Optics Research School, Nuclear Science and Technology Research School, Atomic Energy Organization of Iran, Tehran, Iran.
²Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.

In this paper, a novel voltage controlled oscillator (VCO) with low phase noise, low power consumption and wide tuning range in the industrial, scientific and medical (ISM) band is proposed for communication systems applications. For improving the phase noise, filtering technique is used and VCO is designed with TSMC CMOS 0.18 μm technology and the power supply is 1.5 V. The simulation results with advanced design system (ADS) shows that phase noise in 1 MHz offset frequency from the carrier is -122 dBc/Hz and tuning range is 2 to 2.8 GHz. The power consumption of the core is 2.49 mW.

Filtering Technique, Tuning Range, Phase Noise, Power Consumption, Voltage Controlled Oscillators (VCO)

Sabaghi, M. , Marjani, S. and Majdabadi, A. (2016) A Low Phase Noise, Low Power and Wide Tuning Range VCO with Filtering Technique in ISM Band. Circuits and Systems, 7, 51-57. doi: 10.4236/cs.2016.72006.