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Article summary:
1. A wide tuning range, low KVCO and low phase noise VCO is presented in this paper by combining fully differential active inductor (DAI), switched capacitor array and MOS-based variable capacitors.
2. The adoption of the DAI instead of spiral inductor in the LC tank reduces the phase noise of VCO due to high Q value of DAI.
3. The multiple tuning modes by tunable active inductor, switched capacitor array and variable capacitor make VCO have a wide tuning range of oscillation frequency and lower KVCO.
Article analysis:
The article is generally reliable and trustworthy as it provides detailed information on the design of a voltage-controlled-oscillator (VCO) with wide tuning range, low KVCO and low phase noise. It also provides evidence for its claims by citing relevant works in literature, which shows that the authors have done their research properly. Furthermore, the article does not appear to be biased or one-sided as it presents both sides equally and does not promote any particular point of view. However, there are some points that could be improved upon such as providing more evidence for its claims or exploring counterarguments to its proposed design. Additionally, possible risks associated with the proposed design should also be noted in order to provide a more comprehensive overview of the topic.