Field theory analysis and design of multiport branch-guide couplers for contoured beam antennas

A rigorous and efficient full wave theory of multiport branch-guide couplers for contoured beam antennas is presented. Contoured beam antennas find wide use in modern satellite communication systems. The key element of these antennas is a beamforming network incorporating multiport branch-guide coup...

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Bibliographic Details
Main Authors: Kobrin, K.V., Manuilov, M.B., Sinyavsky, G.P.
Format: Conference Proceeding
Language:English
Subjects:
Antenna feeds
Aperture antennas
Couplers
Directional antennas
Frequency
Moment methods
Reflector antennas
Scattering
Space technology
Transmission line matrix methods
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Summary:A rigorous and efficient full wave theory of multiport branch-guide couplers for contoured beam antennas is presented. Contoured beam antennas find wide use in modern satellite communication systems. The key element of these antennas is a beamforming network incorporating multiport branch-guide couplers to generate the necessary amplitude and phase distribution on the aperture feed. The analysis of 2N-port branch-guide couplers is based on Galerkin's method taking into account the field edge condition and a generalized scattering matrix method. Numerical results are in a good agreement with the theoretical and experimental data of other works. Some optimized multiport branch-guide couplers are considered.
DOI:10.1109/ICATT.2003.1238861