Title :
Low power consumptive mixed mode MMIC power amplifier module for WCDMA Handset Applications
Author :
Park, Min ; Choi, Yun Ho ; Kang, Tae Young ; Park, Kyung Hwan ; Park, Seong Su ; Hyun, Seok-Bong
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
A high average-efficient MMIC power amplifier is implemented utilizing mixed mode power stage techniques with proper linearity. The average power efficiency, which is more important fact to save the battery in handsets, is improved about three times than commercial PAs with only supply voltage of 3.0-V. The power amplifier has been optimized for different P1 dB (1-dB compression point) value: one for 16 dBm for the low power mode, targeting the most probable transmission power, and the other for 28 dBm for the high power mode. A PAE of 29.0% at 16 dBm of out power, which is the maximum bound of the most probable transmission power in IS-95 systems, was obtained, as well as 46.7% at 28.2 dBm for the high power mode. The measured adjacent channel leakage power ratios (ACLR) at the high and low power mode of PldB are -36.17 and -36.16 dBc, respectively, and satisfy the Third-Generation Partnership Project (3GPP) WCDMA specification.
Keywords :
3G mobile communication; MMIC power amplifiers; code division multiple access; mixed analogue-digital integrated circuits; mobile handsets; Third-Generation Partnership Project; WCDMA handset application; mixed mode MMIC power amplifier; mixed mode power stage technique; monolithic microwave integrated circuit; wideband code division multiple access; Batteries; High power amplifiers; Impedance matching; MMICs; Microwave amplifiers; Multiaccess communication; Power amplifiers; Power generation; Probability density function; Telephone sets;
Conference_Titel :
Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-002-6
DOI :
10.1109/EMICC.2007.4412756
