三阶互调（Third-order intermodulation）：设输入信号的频率 为f1和f2，则三阶互调频率为2f1-f2和2f2-f1，当f1和f2很接 近时，互调产物会落在信道内） 。
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Based on the Volterra series,expressions describing the third-order intermodulation distortion in CMOS cascode LNAs are derived.
基于伏特拉级数，本文推导出了描述CMOS cascode结构低噪声放大器三阶互调指标的方程。
参考来源 - CMOS低噪声放大器与混频器中的噪声和非线性分析To realize upper-sideband single balanced up-conversion,45° phase shift transmission line is added to one port of rat-race. Conversion loss is less than 6 dB,third-order intermodulation factor is 39 dB and input 1 dB compression point is 10 dBm.
通过在环形电桥的一个端口附加45°相移实现了上边带单平衡混频,变频损耗小于6dB,三阶交调系数为39dB,输入1dB压缩点为10dBm。
参考来源 - K波段单平衡上变频器的设计·2,447,543篇论文数据，部分数据来源于NoteExpress
With coherent detection, radio frequency (RF) signal can be recovered with simultaneously suppressed second-order distortion and third-order intermodulation.
通过相干检测的方式，可以恢复出不受二阶和三阶干扰的射频信号。
The paper is purposed at a discussion of third -order intermodulation-free radio channel assignment methods.
本文主要讨论了移动通信系统无三阶互调干扰的无线电信道排列法。
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