作者： G. Pelosi , L. Lucci , G. Tofani , G. Valsecchi , R. Banham
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摘要: The design of the front-end for a radio-astronomical receiver usually presents notable challenges in terms large bandwidth and polarization purity and, more recently, very high frequencies investigated. In thisarticle, whole at 100 GHz (horn backing ortho-mode transducer) is discussed critical aspects related to mechanical structure due frequency operation are outlined. article also discusses aluminum electroforming technology chosen manufacturing front-end. Finally, results measurements taken on prototypes shown.