In this paper, a novel voltage controlled oscillator (VCO) with low phase noise, low power consumption\nand wide tuning range in the industrial, scientific and medical (ISM) band is proposed\nfor communication systems applications. For improving the phase noise, filtering technique is\nused and VCO is designed with TSMC CMOS 0.18 Ã?¼m technology and the power supply is 1.5 V. The\nsimulation results with advanced design system (ADS) shows that phase noise in 1 MHz offset frequency\nfrom the carrier is âË?â??122 dBc/Hz and tuning range is 2 to 2.8 GHz. The power consumption\nof the core is 2.49 mW.
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