Title :
A 5 GHz, integrated transformer based, variable power divider design in CMOS process
Author :
Chik, Man-Chum J. ; Wei Li ; Cheng, Kwok-Keung M.
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
This paper presents, for the first time, the realization of CMOS power divider with variable dividing ratio. Size reduction is attained by the adoption of lumped-LC networks based on on-chip capacitors and integrated differential transformers. The proposed design offers a tuning range of about 9dB with standard CMOS tuning diodes and low control voltage. For demonstration, both simulated and measured results of a 5GHz variable power divider implemented using 0.35μm CMOS process are shown.
Keywords :
CMOS integrated circuits; capacitors; field effect MMIC; microwave diodes; power dividers; transformers; CMOS process; CMOS tuning diodes; frequency 5 GHz; integrated differential transformers; integrated transformer based variable power divider design; low control voltage; lumped-LC networks; on-chip capacitors; size 0.35 mum; size reduction; variable dividing ratio; CMOS integrated circuits; Frequency measurement; Loss measurement; Ports (Computers); Power dividers; Tuning; Voltage measurement; CMOS; power dividers; power dividing ratio; transformer; tunable; variable;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location :
Seoul
DOI :
10.1109/APMC.2013.6695148
