Title :
An Ultra-wideband transmitter with automatic self-calibration of sideband rejection up to 9 GHz in 65nm CMOS
Author :
Kang, Byoungjoong ; Yim, Jounghyun ; Kim, Taewan ; Shin, Heeseon ; Ko, Sangsoo ; Ko, Won ; Ryu, Inhyo ; Yang, Sung-Gi ; Choo, Wooseung ; Park, Byeong-Ha
Author_Institution :
Mixed Signal Core Design Team, Samsung Electron., Yongin, South Korea
Abstract :
An Ultra-wideband (UWB) transmitter is proposed that can correct phase errors in quadrature local (LO) signals automatically without help of baseband processor (BBP), operating from 3 to 9 GHz in 65 nm CMOS. The measured tuning range for sideband rejection is 32.7 dB at 7.7 GHz and 13.6 dB at 8.7 GHz. The measured EVM is lower than -20 dB for all supporting bands and TFCs (Time frequency codes) that are prescribed by WiMedia alliance. The power consumption of the transmitter including LO path and PLLs is 210 mW from a 1.2 V supply.
Keywords :
CMOS integrated circuits; calibration; radio transmitters; time-frequency analysis; ultra wideband communication; CMOS; LO path; WiMedia alliance; automatic self-calibration; baseband processor; frequency 3 GHz to 9 GHz; measured tuning range; phase errors; power 210 mW; quadrature local signals; sideband rejection; size 65 nm; time frequency codes; ultrawideband transmitter; voltage 1.2 V; Amplitude modulation; CMOS integrated circuits; Calibration; Mixers; Radio frequency; Transmitters; Ultra wideband technology; Automatic calibration; UWB; phase error; sideband rejection; transmitter; wideband LO buffer;
Conference_Titel :
SoC Design Conference (ISOCC), 2010 International
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-8633-5
DOI :
10.1109/SOCDC.2010.5682903
