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首页> 外文会议>European Microwave Conference vol.2; 20041011-14; Amsterdam(NL) >New Envelope Currents Method to Evaluate Distortion of Communication Signals in Mixers
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New Envelope Currents Method to Evaluate Distortion of Communication Signals in Mixers

机译：评估混频器中通信信号失真的新包络电流方法

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摘要

This paper reports the extension of the novel envelope current-based approach, NEC, to efficiently analyze mixers excited by communications signals. Compared with classical HB technique, the method presents reduced simulation times and an inexpensive use of computer resources, even in the case of digitally modulated signals. For validation purposes a HEMT mixer has been constructed and characterized with single and two-tone 2-GHz input RF signals, and also output spectra under WCDMA-3GPP signal excitations near the 1-dB compression point have been obtained. Relying on its fast convergence properties, simulations have been performed and demonstrate a very good agreement with the experimental results, specifically spectral regrowth. Actually, the method is a trade-off between precision and simulation time.
机译：本文报告了基于新颖的基于包络电流的方法NEC的扩展，以有效地分析受通信信号激励的混频器。与传统的HB技术相比，即使在数字调制信号的情况下，该方法也可以减少仿真时间并节省计算机资源。为了验证，已经构造了HEMT混频器，并用单音和两音2 GHz输入RF信号进行了表征，并且还获得了在1 dB压缩点附近的WCDMA-3GPP信号激励下的输出频谱。依靠它的快速收敛特性，已经进行了仿真，并证明与实验结果（特别是光谱再生）非常吻合。实际上，该方法是精度和仿真时间之间的权衡。

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