论文信息 - Mode content analysis from intensity measurements in a few cross sections of oversized waveguides

Mode content analysis from intensity measurements in a few cross sections of oversized waveguides

A method of mode content analysis in oversized waveguides basing on intensity measurements in a few cross sections is suggested. The method is based on iterative synthesis of phase fronts of the radiation measured in a few cross sections of an oversized waveguide. The phase reconstruction makes it possible to calculate field distribution as well as the mode content at any place of the waveguide. The method was tested in experiments with circular and rectangular waveguides with impedance corrugation of the walls [8].

[1] W. Kasparek,et al. The wavenumber spectrometer—an alternative to the directional coupler for multimode analysis in oversized waveguides , 1988 .

[2] J. Doane. Propagation and mode coupling in corrugated and smooth-wall circular waveguides , 1985 .

[3] A. Chirkov,et al. Mirror synthesis for gyrotron quasi-optical mode converters , 1995 .

[4] G. G. Denisov,et al. Microwave systems based on the effect of image multiplication in oversized waveguides , 1993, International Conference on Infrared and Millimeter Waves.

[5] G. G. Denisov,et al. 3D wavebeam field reconstruction from intensity measurements in a few cross sections , 1995 .

[6] P.J.B. Clarricoats,et al. Attenuation in corrugated circular waveguides. Part 1: Theory , 1975 .