Design of multimode shaped reflector antennas

Ruggerini, G.; Badessi, S.; Foged, L. J.

doi:10.1049/cp:19950289

Cited by 2 publications

(1 citation statement)

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“…As regards the most important and final results sought in this application, which are the surface deformations required to produce the specified footprint, a range of different data has been reported, which goes from values of the order of −1.2 to +1.0 cm for a nonspecified reflector size (Ruggerini, Badessi, & Foged, 1995), and local distortions of up to 2.7 cm for a projected diameter in the aperture plane of about 100λ (2.5 m, f = 12 GHz) (Fox, Crone, & García Prieto, 1992), for Ku band in both cases. Other reported values have, in one case (Cherrette, Lee, & Acosta, 1989), a peak to peak variation of about 0.5λ for a projected diameter in the aperture plane of only 25λ, and in another case (Shoki & Kawabata, 1993), maximum deviations from the initially perfect parabolic Downloaded by [Uppsala universitetsbibliotek] at 02:21 07 October 2014 surface of about 0.7 cm in Ka band, for a projected diameter in the aperture plane of 200λ, at 24 GHz.…”

Section: Introductionmentioning

confidence: 99%

A Tutorial on the Synthesis of Single Shaped Reflectors in C, KU, and KA Bands

Landeros‐Ayala¹,

Neri²,

Sámano³

2006

Electromagnetics

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The technique of shaping the surface of satellite parabolic reflectors, illuminated by a single feed, in order to obtain a determined shaped contoured radiation pattern, with corresponding weight and cost savings, has become an important engineering problem. At present there are many sophisticated synthesis methods that have evolved in the last ten years, but a tutorial on the basics of the design procedure is missing in the literature. This article proposes a didactical sequence of the basic mathematical reasoning and the application of one of the most popular methods used for this purpose, clarifying several considerations which are very important but are usually omitted in textbooks or in previous technical papers on the subject, thus providing a time-saving reference tool for antenna designers who are unfamiliar with the topic. Typical surface deformation data for shaped reflectors at C, Ku, and Ka bands are given as a guideline for a set of different footprints, and a comprehensive and userfriendly program available from a web link is also provided for other geometries.

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Section: Introductionmentioning

confidence: 99%