DocumentCode :
2251117
Title :
High efficiency GaAs power MMIC operating with a single 3.0 V supply for PACS handsets
Author :
Yamamoto, S. ; Yokoyama, T. ; Kunihisa, T. ; Nishijima, M. ; Nishitsuji, M. ; Nishii, K. ; Ishikawa, O.
Author_Institution :
Electron. Res. Lab., Matsushita Electron. Corp., Osaka, Japan
fYear :
1997
fDate :
23-26 Feb. 1997
Firstpage :
33
Lastpage :
36
Abstract :
A high efficiency 3-stage power MMIC operating with a single 3.0 V supply has been developed for 1.9 GHz PACS (low tier PCS) handsets. The pseudomorphic double heterojunction modulation doped FET (MODFET) has enabled a single 3.0 V operation. The MMIC includes all matching circuits (input, output and internal matching circuits), but drain and gate bias circuits are excluded from the MMIC chip to make the chip size small. The new MMIC realizes a high power added efficiency of 30.2% at output power of 24.5 dBm and 1.88 GHz with low adjacent channel leakage power of -60.0 dBc under a single 3.0 V bias supply condition. Total gain and operating current are 32.3 dB and 307 mA, respectively.
Keywords :
III-V semiconductors; MMIC power amplifiers; UHF integrated circuits; UHF power amplifiers; field effect MMIC; gallium arsenide; land mobile radio; personal communication networks; power amplifiers; radio equipment; 1.88 GHz; 1.9 GHz; 3 V; 3-stage power MMIC; 30.2 percent; 307 mA; 32.3 dB; GaAs; MODFET; PACS handsets; adjacent channel leakage power; bias supply; chip size; drain circuits; gate bias circuits; high efficiency GaAs power MMIC; high power added efficiency; input matching circuits; internal matching circuits; operating current; output matching circuits; output power; pseudomorphic double heterojunction modulation doped FET; total gain; Epitaxial layers; FETs; Gallium arsenide; Heterojunctions; Impedance matching; MMICs; MODFET circuits; Personal communication networks; Picture archiving and communication systems; Telephone sets;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Applications Digest, 1997., IEEE MTT-S Symposium on Technologies for
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-3318-7
Type :
conf
DOI :
10.1109/MTTTWA.1997.595106
Filename :
595106
Link To Document :
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