| 无源互调的幅度计算和功率电平测量 |
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| 引用本文： | 张世全,王兴国,葛德彪. 无源互调的幅度计算和功率电平测量[J]. 湖南文理学院学报(自然科学版), 2002, 14(3): 69-71,79 |
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| 作者姓名： | 张世全 王兴国 葛德彪 |
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| 作者单位： | 西安电子科技大学理学院 陕西西安710071武警工程学院陕西西安710086(张世全)，武警工程学院 陕西西安710086(王兴国)，西安电子科技大学理学院 陕西西安710071(葛德彪) |
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| 摘 要： | 在多频通信环境中 ,如船载通信系统、蜂窝式移动通信基站和卫星地面接收站 ,无源互调产物一旦落入接收通带 ,就可造成严重的无线电干扰 ,它已成为此类通信系统的重要性能指标之一。本文介绍了无源互调问题的基本概念、推导了无源互调幅度的数学表示式、描述了无源互调测量的基本类型并给出了一个典型的无源互调测量系统 ,利用一个简化的无源互调测量系统对五阶无源互调功率电平进行了测量 ,并与理论值进行了比较 ,初步验证了测量系统的有效性和正确性。
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| 关 键 词： | 无源互调产物 幅度 测量 |
Calculation of PIM Amplitude and Measurement of PIM Power Level |
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| ZHANG SHi-quan , WANG Xing-guo GE De-biao. Calculation of PIM Amplitude and Measurement of PIM Power Level[J]. Journal of Hunan University of Arts and Science:Natural Science Edition, 2002, 14(3): 69-71,79 |
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| Authors: | ZHANG SHi-quan WANG Xing-guo GE De-biao |
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| Affiliation: | ZHANG SHi-quan 1,2 WANG Xing-guo 2 GE De-biao 1 |
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| Abstract: | In multifrequency comounications environments,such as ship-carried communication systems,cellular mobile radio communication base stations and satellite earth stations,passive intermodulation (PIM)product can cause serious radio interference once it falls into the receiving frequency band.It has been regarded as one of the performance parameters of considerable importance of communication systems.The basic concept of PIM problem is introduced.An expression of PIM amplitudes is derived.The basic types of the measurement systems of PIM products are described and a typical PIM measurement setup is given.PIM power measurement is carried out with a simplified setup system.The measurement data are compared with theoretical values,verifying the correctness and validity of the system. |
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| Keywords: | passive intermodulation product amplitude measurement |
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