DocumentCode :
655941
Title :
Wideband high efficiency multi-band, multi-mode (LTE/WCDMA/GSM) power amplifier for mobile terminals
Author :
Clifton, J.C. ; Lawrenson, A. ; Motoyama, Hideki ; Kohama, Kazumasa
Author_Institution :
Semicond. & Electron. Solutions, Sony Eur., Basingstoke, UK
fYear :
2013
fDate :
6-10 Oct. 2013
Firstpage :
1495
Lastpage :
1498
Abstract :
Based upon a unique Junction PHEMT device, a low voltage ultra-wideband high efficiency power amplifier has been realized for multi-band, multi-mode (LTE/WCDMA/GSM) mobile terminals. To the best of the authors´ knowledge, it is currently the widest frequency range multi-mode PA available for such applications -with the ability to cover 698-915MHz with just one “Low-Band” PA for all possible band allocations below 1GHz. A similar “High-Band” PA was able to cover many of the mobile bands above 1GHz: 1710-2050MHz with the ability to also support the 3GPP 1400MHz band. Despite the wide bandwidth, a high efficiency level -of a similar order to the best-in-class conventional narrow-band PAs, was achieved. Furthermore, it is shown that the architecture deployed has a number of additional powerful benefits compared with conventional PAs such as the ability to provide higher efficiency across the typical HSPA and LTE transmit power distribution characteristics and also the ability to integrate post-PA components such as switches onto the same PA due to the characteristically high output impedance associated with the architecture.
Keywords :
Long Term Evolution; UHF power amplifiers; cellular radio; code division multiple access; high electron mobility transistors; low-power electronics; mobile handsets; GSM; HSPA transmit power distribution characteristics; LTE transmit power distribution characteristics; WCDMA; frequency 1710 MHz to 2050 MHz; frequency 698 MHz to 915 MHz; junction PHEMT device; low voltage ultrawideband high efficiency power amplifier; mobile terminals; output impedance; switches; wideband high efficiency multiband multimode power amplifier; Impedance; Long Term Evolution; Mobile communication; Multiaccess communication; Power amplifiers; Spread spectrum communication; Telephone sets; GSM; J-PHEMT; LTE; Power Amplifier; WCDMA;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
Type :
conf
Filename :
6686952
Link To Document :
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