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The diagonal horn as a sub-millimeter wave antenna

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2 Author(s)
Johansson, J.F. ; Dept. of Radio & Space Sci., Chalmers Univ. of Technol., Gothenburg, Sweden ; Whyborn, N.D.

The far-field radiation pattern of a diagonal horn has been calculated by aperture integration. The radiation patterns for a 4×4 diagonal horn array, measured at 100 GHz, agree very well with theoretical predictions. The aperture electric field was also expanded into Gauss-Hermite modes. The results indicate that the fraction of the power radiated into the fundamental Gaussian mode is about 84%. About 10% of the power is radiated in the cross-polarized component

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:40 ,  Issue: 5 )