This paper proposes overview of the multiband feed system for reflector-type antennas. Coaxial, multimode Potter's type structures, multiband corrugated and dielectric loaded feed horns is discussed below.

Recent progress in development of multiband feed horns (Review)

http://ap-s.ei.tuat.ac.jp/isapx/2000/pdf/1A3-5.pdf

A hybrid method of analysing reflector and feed antennas for satellite applications

The method of current and charge integral equations [1] is applied to numerical electrodynamic analysis of radiation and impedance matching characteristics of parabolic antennas with reflector diameter from 0.5 to 10λ. As a result as opposed to the current method relying on physical optics approximation the influence of feed on reflector’s radiation pattern, the influence of reflector on feed’s impedance matching and the contribution of feed’s rear radiation into reflector’s radiation pattern are all accounted for. A new model of representing a parabolic surface in the form of its square approximation is suggested, which provides almost uniform partitioning grid and has at least 2.5 times less boundary elements that the common revolution surface representation while having the same sampling coefficient. Dependences of antenna’s directivity on reflector dimensions (0.5–10λ) are calculated for six different focus distance to reflector’s diameter ratios using the developed by the authors crystal_U software package. The calculated results are confirmed by good matching with well-known experimental results.

Numerical analysis of small parabolic antennas using the method of current and change integral equations

This paper propose a review of feed systems for reflector-type antennas. Main attention is paid to coaxial, multimode, corrugated and dielectric loaded feed horns.

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Дво- та багатодіапазонні рупорні опромінювачі дзеркальних антен

This chapter contains sections titled: Introduction Reflector Design Feed System Design Reflector Systems Conclusion Acknowledgment References ]]>

W. Ross Stone

Papers

Design and Practice of Reflector Antennas and Feed Systems in the 1990s