A switched-inductor based VCO with an ultra-wideband tuning range of 87.6 %

Author

Qing, Liu ; Jiangtao, Sun ; Kurachi, Satoshi ; Itoh, Nobuyuki ; Yoshimasu, Toshihiko

Author_Institution

Grad. Sch. of Inf., Production & Syst., Waseda Univ., Kitakyushu, Japan

fYear

2009

fDate

20-23 Oct. 2009

Firstpage

355

Lastpage

358

Abstract

A novel switched-inductor based resonator is proposed to implement an ultra-wideband VCO. The VCO is designed and fabricated using 0.13 Â¿m CMOS and fully evaluated on wafer. The measured results show that the proposed VCO has a tuning range as high as 87.6% spanning from 1.81 GHz to 4.63 GHz. The measured phase noise of -124.4 dBc/Hz at 1 MHz offset from the 1.81 GHz carrier is obtained.

Keywords

CMOS integrated circuits; UHF integrated circuits; UHF oscillators; inductors; phase noise; resonators; voltage-controlled oscillators; CMOS; frequency 1.81 GHz to 4.63 GHz; phase noise; size 0.13 mum; switched-inductor based VCO; switched-inductor based resonator; ultrawideband VCO; voltage-controlled oscillators; Communication switching; Frequency; Inductors; Phase noise; Sun; Tuning; Ultra wideband technology; Varactors; Voltage-controlled oscillators; Wireless communication; AMOS varactor banks; Low phase noise; Switched inductor; Ultra-wideband VCO;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC, 2009. ASICON '09. IEEE 8th International Conference on

Conference_Location

Changsha, Hunan

Print_ISBN

978-1-4244-3868-6

Electronic_ISBN

978-1-4244-3870-9

Type

conf

DOI

10.1109/ASICON.2009.5351421

Filename

5351421