Reconfigurable RF circuits for future band-free mobile terminals

被引：0
|
作者：
Okazaki, Hiroshi [1 ]
Fukuda, Atsushi [1 ]
Kawai, Kunihiro [1 ]
Furuta, Takayuki [1 ]
Narahashi, Shoichi [1 ]
机构：
[1] NTT DoCoMo Inc, Res Labs, Kanagawa 2398536, Japan
来源：
2007 INTERNATIONAL SYMPOSIUM ON SIGNALS, SYSTEMS AND ELECTRONICS, VOLS 1 AND 2 | 2007年
关键词：
microelectromechanical devices; microwave filters; microwave isolators; microwave power amplifiers;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Reconfigurable radio frequency (RF) circuits win be the predominant solution for future global and compact mobile terminals. Recent progress in RF-microelectromechanical systems (MEMS) devices has bolstered the hope for the implementation of high-performance reconfigurable RF circuits. This paper presents configurations for a novel band-reconfigurable power amplifier, a reconfigurable isolator, and a center frequency and bandwidth tunable filter. These RF circuits were prototyped. The reconfigurable power amplifier using MEMS switches achieves comparable performance to that of a single-band power amplifier in four different frequency bands. The isolator and the filter prototypes confirm the feasibility of the proposed configuration. These reconfigurable RF circuits Will contribute to band-free operation in future mobile terminals.
引用
收藏
页码：94 / 97
页数：4
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