Challenges and Requirements of Multimode Multiband Power Amplifiers for Mobile Applications

Multimode multiband (MMMB) power amplifiers have been developed in recent years for next generation mobile handsets and tablets applications. Designers face new and greater challenges due to more stringent requirements in functionality, performance, size and cost. This paper will discuss the motivations that drive MMMB PA development and the requirements, challenges and considerations relevant to power amplifier design.

[1]  D. Cristaudo,et al.  A balanced cdma2000 SiGe HBT load insensitive power amplifier , 2006, 2006 IEEE Radio and Wireless Symposium.

[2]  F. Raab,et al.  Power amplifiers and transmitters for RF and microwave , 2002 .

[3]  Robert H. Caverly,et al.  HF, VHF, and UHF systems and technology , 2002 .

[4]  Kamal Sahota.  RF front end requirements for 3G and beyond , 2010, 2010 IEEE International Ultrasonics Symposium.

[5]  T. Apel,et al.  Switched Doherty Power Amplifiers for CDMA and WCDMA , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[6]  Jangheon Kim,et al.  A high efficiency and multi-band/multi-mode power amplifier using a distributed second harmonic termination , 2010, The 5th European Microwave Integrated Circuits Conference.

[7]  Jinsung Choi,et al.  Envelope tracking power amplifier robust to battery depletion , 2010, 2010 IEEE MTT-S International Microwave Symposium.

[8]  M. Declercq,et al.  A fast modulator for dynamic supply linear RF power amplifier , 2003, ESSCIRC 2004 - 29th European Solid-State Circuits Conference (IEEE Cat. No.03EX705).

[9]  Gary Hau,et al.  Multi-mode WCDMA power amplifier module with improved low-power efficiency using stage-bypass , 2010, 2010 IEEE Radio Frequency Integrated Circuits Symposium.

[10]  A. Samelis,et al.  Efficiency improvement techniques at low power levels for linear CDMA and WCDMA power amplifiers , 2002, 2002 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.02CH37280).

[11]  F. Ellinger,et al.  Analysis of buck-converters for efficiency enhancements in power amplifiers for wireless communication , 2007, 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference.

[12]  H. Okazaki,et al.  Reconfigurable RF Circuits for Future Band-Free Mobile Terminals , 2007, 2007 International Symposium on Signals, Systems and Electronics.