Title :
Optimized design of wideband transformer for handset CMOS power amplifier application
Author :
Jin, Boshi ; Choi, Jinsung ; Kang, Daehyun ; Jun, Myoungsu ; Kim, Bumman
Author_Institution :
Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol., Pohang
Abstract :
This paper analyzes the bandwidth characteristic of a transformer with a view point of the impedance matching and provides design rules. Based on the rules, two designs were demonstrated, the dual narrow path band transformer and the distributed active transformer (DAT) optimized for a wide bandwidth.
Keywords :
CMOS integrated circuits; impedance matching; power amplifiers; transformers; bandwidth characteristic; distributed active transformer; dual narrow path band transformer; handset CMOS power amplifier application; impedance matching; optimized design; wideband transformer; Bandwidth; Broadband amplifiers; Capacitance; Design optimization; Differential amplifiers; Frequency; Impedance; Power amplifiers; Switches; Telephone sets;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4957885
