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Quasioptical Approach for Meniscus Lens Corrected Horn: Application to Cassegrain Systems |
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| Authors: | F Tercero J A López Fernández E García L de Haro M C Carter A Barcia B Galocha and J L Besada |
| Institution: | (1) Centro Astronómico de Yebes, Apdo. 148, 19080 Guadalajara, Spain;(2) Escuela Técnica Superior de Ingenieros de Telecomunicaciones, Universidad Politécnica de Madrid, Spain;(3) Institute de Radioastronomie Millimétrique IRAM, Grenoble, France;(4) Centro Astronómico de Yebes, Apdo., 19080 Guadalajara, Spain |
| Abstract: | The Beam Mode Expansion (BME) approach for corrugated conical feed horn plus meniscus lens is presented. This approach is useful for providing the radiation pattern as it propagates through an optical system. A developed theoretical model has been verified measuring near and far field of a built horn and lens. These results have been used for designing the optical system of a Cassegrain antenna at 100GHz using the fundamental Gaussian beam mode (GBM) of the new approach. Multimode analysis has been performed with the pre-designed system in order to test the fundamental GBM results. |
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