Development of a tunable power amplifier for handsets

手机可调功率放大器的开发

基本信息

批准号：
478220-2015
负责人：
Yagoub, Mustapha
金额：
$ 1.82万
依托单位：
University of Ottawa
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2015
资助国家：
加拿大
起止时间：
2015-01-01 至 2016-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=579375
关键词：
Development tunable power amplifier handsets

项目摘要

Mobile handset radio frequency power amplifiers (PA) are a critical and competitive component of Canada's wireless economy. As opposed to infrastructure PAs, mobile PAs are severely restricted in size and cost, and are required to deal with large dynamic changes in environment, operating frequency and modulation types. So far, mobile PAs are overbuilt to meet these disparate demands, resulting in reduced performance, reduced handset battery life and excessive heating. Introducing tunable elements into a PA allows dynamic optimization to mitigate these problems. Research will begin with understanding mobile transmitter specifications for LTE, as this is considered the most popular and challenging network. This will be followed by a study of present PA semiconductor technologies, such as GaAs HBT, GaN pHEMT, and possibly SiCMOS, for amenability to integrated tunable elements. Expected improvements in PA performance will be simulated with attention to frequency range extension, efficiency, size, linearity, variance in loading, low voltage operation and temperature. Such simulation will also assess the viability and requirements of commercially available tuning technologies. Once a PA of appropriate technology is chosen, a tuning sub-system will be fabricated, integrated with the PA, and the system measured. BlackBerry Ltd. is a leading Canadian telecommunications company and mobile handset manufacturer. It is well known worldwide for innovation and high standards in microwave radio technology, for which tunable transmitters offer a direct competitive advantage.

手机射频功率放大器 (PA) 是加拿大无线经济的重要且具有竞争力的组成部分。与基础设施 PA 不同，移动 PA 在尺寸和成本方面受到严格限制，并且需要应对环境、工作频率和调制类型的大幅动态变化。到目前为止，移动 PA 的构建过于庞大，无法满足这些不同的需求，从而导致性能下降、手机电池寿命缩短以及过热。将可调元件引入 PA 中可以通过动态优化来缓解这些问题。研究将从了解 LTE 的移动发射器规范开始，因为 LTE 被认为是最流行且最具挑战性的网络。随后将研究现有的 PA 半导体技术，例如 GaAs HBT、GaN pHEMT，可能还有 SiCMOS，以适应集成可调元件。将模拟 PA 性能的预期改进，同时关注频率范围扩展、效率、尺寸、线性、负载变化、低电压操作和温度。这种模拟还将评估商用调谐技术的可行性和要求。一旦选择了适当技术的 PA，就会制造一个调谐子系统，与 PA 集成，并对系统进行测量。 BlackBerry Ltd. 是加拿大领先的电信公司和手机制造商。它因微波无线电技术的创新和高标准而闻名于世，可调谐发射机为此提供了直接的竞争优势。