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Distortion of information in non-uniform multi-mode waveguides

 

作者: A.E.Karbowiak,  

 

期刊: Proceedings of the IEE - Part B: Electronic and Communication Engineering  (IET Available online 1959)
卷期: Volume 106, issue 13S  

页码: 9-16

 

年代: 1959

 

DOI:10.1049/pi-b-2.1959.0003

 

出版商: IEE

 

数据来源: IET

 

摘要:

An analysis of electromagnetic wave propagation in mutually coupled parallel lines is carried out. The theory is then adapted to microwave propagation in waveguides capable of supporting simultaneously a large number of modes, and explicit solutions are obtained in the case of weak coupling.A detailed analysis of periodically coupled modes is developed and applied to a number of specific cases of practical interest. It is shown that, although very weakly coupled waveguides have negligible influence on signal distortion, periodic coupling results in considerable signal distortion. A waveguide with random irregularities is treated in some detail and explicit formulae for signal distortion are derived.The analysis is concluded with numerical examples illustrating signal distortion, increase in attenuation and echo distortion.

 

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