Title :
A 900/1500/2000-MHz triple-band reconfigurable power amplifier employing RF-MEMS switches
Author :
Fukuda, Atsushi ; Okazaki, Hiroshi ; Narahashi, Shoichi ; Hirota, Tetsuo ; Yamao, Yasushi
Author_Institution :
NTT DoCoMo Inc., Kanagawa, Japan
Abstract :
A triple-band reconfigurable power amplifier (PA), which comprises the band-switchable matching networks with RF-MEMS switches, is presented. The design method of the triple-band PA is described and switch requirements for multi-band operation are discussed. The switch satisfies the estimated requirements. The fabricated triple-band PA achieves high output power and high power added efficiency in three different frequency bands, 900 MHz, 1500 MHz, and 2000 MHz, respectively. We conclude that the proposed reconfigurable PA is easily expanded to multi-band operation and is quite promising for future mobile terminals.
Keywords :
UHF power amplifiers; micromechanical devices; microswitches; software radio; 1500 MHz; 2000 MHz; 900 MHz; RF-MEMS switches; band-switchable matching networks; future mobile terminals; high output power; high power added efficiency; microelectromechanical devices; multiband operation; reconfigurable PA; switch requirements; triple-band reconfigurable power amplifier; Circuits; Design methodology; FETs; Impedance; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Radiofrequency microelectromechanical systems; Switches;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516691
