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

fYear

2013

fDate

5-8 Nov. 2013

Firstpage

366

Lastpage

368

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2013 Asia-Pacific

Conference_Location

Seoul

Type

conf

DOI

10.1109/APMC.2013.6695148

Filename

6695148