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Arrays of concentric rings as frequency selective surfaces

Arrays of concentric rings as frequency selective surfaces

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© The Institution of Electrical Engineers
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Concentric rings can be used as array elements in frequency selective surfaces. The transmission curves are more complex than those for simple rings, but provide more closely spaced reflection and transmission bands. In an example discussed here, a band centre frequency ratio of 1/1.3 is given by an array of compound elements with two concentric rings.

Inspec keywords: microwave antenna arrays; electromagnetic wave transmission; electromagnetic wave reflection

Other keywords: concentric ring arrays; frequency selective surfaces; transmission curves; reflection bands; antennas; transmission bands

Subjects: Antenna arrays

References

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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 , A.J. Drinkwater . An improved empirical model for the Jerusalem cross. IEE Proc. H, Microwaves Opt. & Antennas
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      • E.A. Parker , R.J Langley , P.A. Langsford , A.J. Drinkwater . (1978) , A reflector antenna with a dichroic Cassegrain mirror.
    4. 4)
      • P.A. Langsford , E.A. Parker . Cross polarisation of electromagnetic waves transmitted through waveguide dichroic plates. IEE Proc. H Microwaves Opt. & Antennas , 1 , 1 - 5
    5. 5)
      • E.A. Parker , S.M.A. Hamdy . Rings as elements for frequency selective surfaces. Electron. Lett. , 17 , 612 - 614
    6. 6)
      • T.W. Leonard , J.W. Cofer . (1978) , A new equivalent circuit representation for the Jerusalem cross.
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