Design of LC Oscillator and VCO for ISM and WI-FI Band Applications (original) (raw)

The last decade of this century has seen an explosive growth in the communicationsindustry. People want to be connected all the time using wirelesscommunication devices. In addition, the demand for high bandwidth communicationchannels has exploded with the advent of the internet. Thanks to thehigh density available on integrated circuits, sophisticated digital modulationschemes can be employed to maximize the capacity of these channels. This haschanged the design of wireless and wire line transceivers. We focus on the designof a critical sub-block: the voltage controlled oscillator (LC oscillator, VCO). We reviewthe requirements for VCOs and evaluate the advantages and disadvantages ofVCO. The proposed work is aimed to achieve the desired operating frequency, high stability. Power has become one of the most important paradigms for microprocessor & ASIC/SOC designs. Hence to have very low power consumption, this paper work is decided to implement using VLSI technology.