TY - JOUR AU - Macaitis, V. AU - Barzdenas, V. AU - Navickas, R. PY - 2014/02/05 Y2 - 2025/01/02 TI - Design of 4.48–5.89 GHz LC-VCO in 65 nm RF CMOS Technology JF - Elektronika ir Elektrotechnika JA - ELEKTRON ELEKTROTECH VL - 20 IS - 2 SE - DO - 10.5755/j01.eee.20.2.6383 UR - https://eejournal.ktu.lt/index.php/elt/article/view/6383 SP - 44-47 AB - This paper describes a 4.48 GHz–5.89 GHz LC voltage-controlled oscillator (LC-VCO) as a key component in RF transceivers. The circuit is fully designed in TSMC’s 65 nm radio-frequency complimentary metal-oxide-semiconductor technology process. The LC-VCO uses the structure of only one couple of NMOS differential negative resistances, tank circuit which consists of an optimal on-chip spiral inductor with switched capacitor and varactor arrays. The proposed design accomplishes wide tuning range frequency by using 6-bit switch capacitor array in addition to linearly varying MOS varactors. A switched current source block is used to improve the performance of the LC-VCO. The oscillator has a wide tuning range, between 4.48 GHz and 5.89 GHz. The LC-VCO dissipates 15.96 mW from a voltage supply of 1.8 V, whereas its phase noise is -124.1 dBc/Hz at 1 MHz offset of a at 5.89 GHz carrier. <p>DOI: <a href="http://dx.doi.org/10.5755/j01.eee.20.2.6383">http://dx.doi.org/10.5755/j01.eee.20.2.6383</a></p> ER -