采用Doherty结构的功率放大器设计

Introduction

Why a power amplifier is important?
Power amplifier is a key element to build a wireless communication system successfully.
There is a trade-off between power per cost vs. efficiency and linearity.
Digital communications require more peak power for the same bit error rate.
To minimize spectral re-growth and interferences, transmitters have to be more linear.
Clear modulation scheme requires more higher power and broader bandwidth.
What is a solution from Ansoft?

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