Title :
A multi-mode multi-band reconfigurable power amplifier for low band GSM/UMTS handset applications
Author :
Sungyoon Kang ; Unha Kim ; Youngwoo Kwon ; Junghyun Kim
Author_Institution :
Dept. of Electron. & Syst. Eng., Hanyang Univ., Ansan, South Korea
Abstract :
A practical reconfigurable structure for multi-mode multi-band (MMMB) reconfigurable power amplifier (PA) is proposed for GSM/UMTS handset applications. To overcome not only the frequency difference (MB) but also the power difference (MM) between GSM and UMTS standards, the proposed structure reconfigures the PA core as well as the output matching network. To verify the performance of the proposed structure, a MMMB PA is developed for GSM/EDGE/UMTS low-frequency bands applications. The fabricated MMMB PA showed good RF performance for UMTS as well as GSM/EDGE applications. Efficiency degradation was limited to less than 2% compared to the single-mode single-band PA. Measured RF performance validates the usefulness of the proposed structure for MMMB applications.
Keywords :
3G mobile communication; cellular radio; mobile handsets; power amplifiers; GSM standard; GSM/EDGE/UMTS low-frequency bands applications; RF performance; UMTS standard; frequency difference; low band GSM/UMTS handset applications; multimode multiband reconfigurable power amplifier; output matching network; power difference; reconfigurable structure; single-mode single-band PA; 3G mobile communication; GSM; Impedance; Power amplifiers; Power generation; Switches; Telephone sets; Band switching; EDGE; GSM; WCDMA; concurrent; matching network; multi-band; multi-mode; power amplifier (PA); reconfigurable; switch;
Conference_Titel :
Power Amplifiers for Wireless and Radio Applications (PAWR), 2013 IEEE Topical Conference on
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-1-4673-2915-6
Electronic_ISBN :
978-1-4673-2931-6
DOI :
10.1109/PAWR.2013.6490174
