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Feed radiation patterns modified by a dichroic plate

Feed radiation patterns modified by a dichroic plate

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© The Institution of Electrical Engineers
Published

The 20 GHz copolar radiation patterns of a feed 4.25 cm from a flat dichroic plate 15 cm in diameter have been computed using a mode-matching technique. The results are in good agreement with the measured patterns.

Inspec keywords: antenna feeders; antenna radiation patterns; antenna theory

Other keywords: copolar radiation patterns; 20 GHz; flat dichroic plate; feed; mode matching technique

Subjects: Antenna accessories; Antenna theory

References

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      • Parker, E.A., Langley, R.J., Langsford, P.A., Drinkwater, A.J.: `A reflector antenna with a dichroic Cassegrain mirror', Proceedings of the IEE conference on antennas and propagation, November 1978.
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      • N. Amitay , V. Galindo , C.P. Wu . (1972) , Theory and analysis of phased array antennas.
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      • R.J. Langley , E.A. Parker . Geometry of waveguides in a dichroic secondary mirror. Electron. Lett. , 443 - 445
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      • C.C. Chen . Transmission of microwaves through perforated flat plates of finite thickness. IEEE Trans. , 1 - 6
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