BS EN 61580-7:1997- Methods of measurement for waveguides - Graphical method for the determination of waveguide performance
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This part of IEC 1580 is applicable to waveguide performance.
The objective is to provide a means for determining the cut-off frequencies for the dominant and higher order modes in waveguides of various types over the frequency range from 1 GHz to 27 GHz. It is only intended to be used as an appendix to the measuring method published by SC 46B.