MCPA in 3G Apps

摘要

Not long ago, some of us shared a naive vision that the 3G/IMT-2000/ UMTS standardization activities would lead to widely accepted requirements and specifications, resulting in equipment commonality with multiple sources and lower costs. Although value is trending up, the 3G revolution is more notable as a period of system innovation and variety, rather than hardware standardization. Designing power amplifiers to meet 3G requirements is technically challenging, and issues in power-amplifier selection and planning have become more complex. Here are the 3G implications and trade-offs for power-amplifier hardware.