Title :
Band-reconfigurable high-efficiency power amplifier using MEMS switches
Author :
H. Okazaki;S. Narahashi;A. Fukuda;T. Miki
Author_Institution :
Wireless Lab., NTT DoCoMo Inc., Kanagawa, Japan
fDate :
6/27/1905 12:00:00 AM
Abstract :
A band-reconfigurable power amplifier (PA) is presented that comprises band-switchable matching networks with RF microelectromechanical systems switches. The fabricated triple-band PA achieves the output power of 30 dBm and the power added efficiency of 60% in three different frequency bands, 900 MHz, 1500 MHz, and 2000 MHz. Because the proposed band-reconfigurable PA can be extended to a larger number of frequency bands, it will contribute to "band-free" operation for future mobile terminals.
Keywords :
"High power amplifiers","Microswitches","Power amplifiers","Circuits","Switches","Broadband amplifiers","Radiofrequency amplifiers","Radio frequency","Radiofrequency microelectromechanical systems","Impedance matching"
Conference_Titel :
Radio-Frequency Integration Technology: Integrated Circuits for Wideband Communication and Wireless Sensor Networks, 2005. Proceedings. 2005 IEEE International Workshop on
Print_ISBN :
0-7803-9372-4
DOI :
10.1109/RFIT.2005.1598879
