摘要
为了改善常用电压偏置功率放大器对偏置电压、温度和工艺的敏感影响,提出了一种新型的低耦合自适应偏置电路结构,并采用改进的负载牵引仿真方法,通过在Jazz SiGe BiCMOS0.35μm工艺上的设计实现表明,最大线性功率可以有效地提高2dB,效率可以提高12.5%.工作在2.4GHz频段上的此功率放大器可以适用于蓝牙增强数据率模式和无线局域网802.11b/g等采用线性调制的发送端.
To avoid PVT variations in traditional voltage-bias linear power amplifier, a PVT-insensitive current-bias linear power amplifier is described with novel low-coupling adaptive bias circuit and an improved Load-Pull simulation method. Implementation on Jazz SiGe 0.35μm BiCMOS HBT process shows improved results that the maximum linear output power could be enhanced by 2dB and efficiency by 12.5%. The novel 2.4GHz linear PA are very suitable in linear-modulated transmitter, such as Bluetooth Enhanced Data Rate and WLAN 802. 11b/g etc.
出处
《微电子学与计算机》
CSCD
北大核心
2009年第11期5-8,共4页
Microelectronics & Computer
基金
捷顶微电子支持项目
