Title :
A 25MHz–6.44GHz LC-VCO using a 5-port inductor for multi-band frequency generation
Author :
Deng, Wei ; Okada, Kenichi ; Matsuzawa, Akira
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
This paper proposes a wide tuning range VCO for multi-band frequency generation. The wide band oscillator consists of a dual-mode LC-VCO using a 5-port inductor, and a divider chain. The proposed 5-port inductor provides two different inductances, which could support two resonances in a compact chip area. Thus, for LC-VCO, two operation modes are obtained to increase the tuning range. The experimental results achieve 25MHz-to-6.44GHz of continuous tuning range with a FoMT of -209 dBc/Hz.
Keywords :
inductors; voltage-controlled oscillators; 5-port inductor; compact chip area; divider chain; dual-mode LC-VCO; frequency 25 MHz to 6.44 GHz; multiband frequency generation; wide band oscillator; wide tuning range VCO; CMOS integrated circuits; Inductors; Resonant frequency; Switches; Tuning; Voltage-controlled oscillators; 5-port inductor; LC-VCO; multi-band; wide tuning range;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-8293-1
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2011.5940681
