E类放大极性发射机的馈通抵消

2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI:10.1109/ECCTD.2007.4529665

S. Hietakangas, T. Rautio, T. Rahkonen

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引用次数: 10

摘要

本工作的目的是研究可用于E类放大极性发射机的馈通抵消方法。提出了一种利用实测s参数进行数学馈通对消的方法。结果表明，该方法明显改善了E类放大器的非线性特性。此外，还讨论并模拟了晶体管级馈通抵消的可能性。通过大信号s参数仿真，实现了5db的馈通衰减。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Feedthrough cancellation in a class E amplified polar transmitter

The purpose of this work is to study feedthrough cancellation methods available for a class E amplified polar transmitter. A mathematical feedthrough cancellation using measured S-parameters is presented. The results show a clear improvement to the nonlinear behaviour of a class E amplifier. Also, a transistor level possibility of feedthrough cancellation is discussed and simulated. With a large-signal S-parameter simulation, a 5 dB feedthrough attenuation was achieved.

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2007 18th European Conference on Circuit Theory and Design

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