High Efficiency and Ultra Linear Broadband and Multiband Power Amplifiers for 4G Wireless Base Stations

开发节能、多标准和多协议的无线无线电系统对于支持泛在、认知和绿色无线网络的部署至关重要。为了实现这一点，有必要开发新型无线电发射机，特别是射频功率放大器(PA)，这种发射机在多个频段上保持高能效和线性，特别是在以具有高度变化包络特征的调制信号驱动时。 这项拟议的研究不仅通过开发新的电路拓扑，而且通过检查半导体器件的增强，旨在克服当前基于Doherty和漏极调制的功率放大器的各种带宽限制。这两个领域都是创建综合主干所需的关键，以实现超越传统方法的可能的改进；传统上，在两个抽象级别之间存在明确的边界。 该项目将得到飞思卡尔半导体和爱立信加拿大两家工业合作伙伴的支持，这两家公司都对该项目的互补方面感兴趣，并将分别为其做出贡献，即半导体设备和无线电系统。该项目的成果将服务于这两个组织未来的市场需求，同时还将通过技术转让和高素质人员的发展使加拿大受益。

The development of energy-efficient, multi-standard, and multi-protocol wireless radio systems is critical to support the deployment of ubiquitous, cognitive and green wireless networks. To achieve this, it will be necessary to develop novel radio transmitters, specifically radio frequency power amplifiers (PAs), which maintain high energy-efficiency and linearity across multiple frequency bands, especially when driven with modulated signals characterized by highly varying envelopes. The proposed research aims to overcome the various bandwidth limitations of current energy-efficient Doherty and Drain modulation based PAs by not only developing new circuit topologies, but by examining semiconductors device enhancements. Both of these areas are keys to creating the integrated backbone required to enable improvements beyond what has been possible with traditional approaches; traditionally clear boundaries have existed between the two levels of abstractions. This project will be supported by two industrial partners Freescale Semiconductors and Ericsson Canada, each of which are interested in, and will be contributing to, complementary aspects of the project, namely semiconductors devices and radio systems respectively. The outcomes of the project will serve the future market needs of both organizations, while additionally benefiting Canada through technology transfer and the development of highly qualified personnel.