Active Inductor based VCO for High Tuning Range
نویسندگان
چکیده
This paper presents a study of Active inductor based VCOs that helps in increasing the tuning range of the VCO , reduces the chip size and phase noise of the circuit. Study has been done on LC VCOs by replacing the passive inductors with the active one consisting of MOSFET. Design of circuit has been done on Orcade Capture using .18um technology.power consumption of circuit is 1.33mW with tuning range of 81%.Tuning range of the VCO is increased because the active inductor cancels out the parasitic capacitance of the circuit.
منابع مشابه
Wide Tuning Range LC-VCO Using Variable Inductor for Reconfigurable RF Circuit
This paper presents a novel wide tuning range CMOS Voltage Controlled Oscillator (VCO). VCO uses an on-chip variable inductor as an additional variable element to extend the tuning range of VCO. The fabricated variable inductor achieves the variable range of 35%. The VCO was fabricated using 0.35 μm standard CMOS process, and can be tuned continuously from 2.13 GHz to 3.28 GHz (tuning range of ...
متن کاملUltra Wide Band Vco Using Cmos Technology
ULTRA WIDE BAND VCO USING CMOS TECHNOLOGY Seema Malik, Mr. Sunil Kumar M.Tech (VLSI Design), Banasthali University, Banasthali, Jaipur, Rajasthan, INDIA 2 Scientist (Agriculture Statistics), Project Directorate for Farming System Research, Modipuram, Meerut (U.P) 250-110, INDIA ___________________________________________________________________________________ Abstract: Ultra wideband (UWB) wir...
متن کاملHigh-Frequency Low-Noise Voltage-Controlled LC-Tank Oscillators Using a Tunable Inductor Technique
This paper describes 3-GHz and 7-GHz tunableinductance LC-tank voltage-controlled oscillators (VCOs) implemented in 0.18-μm CMOS technology. Unlike the traditional tuning method by a varactor, a tunable inductor is employed in the VCO by using a transformer to compensate for the energy loss. The VCO facilitates the tuning frequency and low noise of the output signals, together with a variable i...
متن کاملPerformance Analysis of Tunable Band Pass Filter and VCO for Multiband RF Front End
This paper presents a design and performance analysis of tunable RF front end circuits such as RF band pass filter and VCO for multiband applications. The tunable element is an active inductor, built by MOS transistors. It is attractive due to its tunable and larger inductance values. The RF band pass filter is realized using active inductor with suitable input and output buffer stages. The tun...
متن کاملA Low Phase Noise, Power Efficient Voltage Controlled Oscillator Using 0.18-μm Cmos Technology
A low phase noise, power efficient VCO using UMC 0.18μm CMOS technology has been proposed in this paper. The proposed VCO has a tuning range of 9.71GHz to 9.9GHz, with a phase noise of -79.88 dBc/Hz @ 600kHz offset. The Vtune ranging between 1V 1.5V generates sustained oscillations. The maximum power consumption of the VCO is 11.9mW using a supply voltage of 1.8V with ±10% variation. Keywords-P...
متن کامل