A 4-and 6-GHZ, prime focus, CP feed with circular pattern symmetry
作者： R. Gruner
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sci-hub.se 参考文章(2)
R. Wohlleben, H. Mattes, O. Lochner, Simple small primary feed for large opening angles and high aperture efficiency Electronics Letters. ,vol. 8, pp. 474- 476 ,(1972) , 10.1049/EL:19720341
W.J. English, The Circular Waveguide Step-Discontinuity Mode Transducer (Short Papers) IEEE Transactions on Microwave Theory and Techniques. ,vol. 21, pp. 633- 636 ,(1973) , 10.1109/TMTT.1973.1128093