Title :
A Sideband-suppressed MB-OFDM Frequency Synthesizer Using a Dual-Mode Divider
Author :
Sun, Hyuk ; Park, Jin-Hong ; Kim, Ki-Won ; Kim, Sung-Jun ; Chang, Ho-Jun ; Kim, Myoung-Gyun ; Yun, Tae-Yeoul
Author_Institution :
Hanyang Univ., Seoul
Abstract :
We present a topology to provide tolerate quadrature signals in a MB-OFDM UWB frequency synthesizer. This frequency synthesizer is modified to replace a RC-CR network (RC-CR phase shifter) with a frequency division network (dual-mode divider), eliminating amplitude and phase errors of the RC-CR network. The proposed topology obtains superior suppression of image sideband of -15.5 dB when mismatches of RC passive components are assumed, based on the Monte Carlo simulation.
Keywords :
Monte Carlo methods; OFDM modulation; RC circuits; frequency dividers; frequency synthesizers; network topology; phase shifters; ultra wideband communication; MB-OFDM frequency synthesizer; Monte Carlo simulation; RC passive components; RC-CR network; RC-CR phase shifter; dual-mode divider; frequency division network; network topology; quadrature signals; sideband suppression; Amplitude modulation; Bandwidth; CMOS technology; Frequency conversion; Frequency synthesizers; Network topology; Phase locked loops; Phase shifters; Radio frequency; Ultra wideband technology; CMOS; MB-OFDM; RFIC; dual-mode divider; frequency synthesizer; ultra-wideband;
Conference_Titel :
Radio-Frequency Integration Technology, 2007. RFIT 007. IEEE International Workshop on
Conference_Location :
Rasa Sentosa Resort
Print_ISBN :
978-1-4244-1307-2
Electronic_ISBN :
978-1-4244-1308-9
DOI :
10.1109/RFIT.2007.4443916
