机构:
ST Microelectron, Grenoble, FranceUniv Bordeaux, ENSEIRB, IMS Lab, Talence, France
Belot, D.
[2
]
机构:
[1] Univ Bordeaux, ENSEIRB, IMS Lab, Talence, France
[2] ST Microelectron, Grenoble, France
来源:
RWS: 2009 IEEE RADIO AND WIRELESS SYMPOSIUM
|
2009年
关键词:
Power amplifier;
WLAN;
Delta-Sigma;
power adaptive loop;
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:
The following discussion presents a novel technique of power management in TX 4G transmit path, capable of efficiently handling wide channel bandwidth and high peak-to-average-power-ratio (PAPR). It consists in a power adaptive closed loop, based on a switched multi-cell power amplifier (PA) core and a novel Delta-Sigma control loop topology. This work was carried out with a ST Microelectronics SiGe technology.