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Sensitivity of the radiation pattern of a small slotted waveguide array to the finiteness of its elliptical groundplane

Sensitivity of the radiation pattern of a small slotted waveguide array to the finiteness of its elliptical groundplane

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  • Author(s): D.A. McNamara 1  and  L. Botha 2
    • View affiliations
    • Affiliations: 1: Department of Electronic and Computer Engineering, University of Pretoria, Pretoria, South Africa
      2: Department of Electronic and Computer Engineering, CSIR, Pretoria, South Africa
  • Source: Volume 26, Issue 6, 15 March 1990, p. 387 – 388
    DOI:  10.1049/el:19900252 , Print ISSN 0013-5194, Online ISSN 1350-911X
© The Institution of Electrical Engineers
Published

The effect, on the near-in sidelobe levels, of the finiteness of the circular and elliptical groundplanes of small slotted waveguide arrays is examined using the uniform geometrical theory of diffraction.

Inspec keywords: antenna radiation patterns; antenna theory; microwave antenna arrays; waveguide antennas

Other keywords: groundplane finiteness; elliptical groundplane; uniform geometrical diffraction theory; radiation pattern; circular groundplane; slotted waveguide array; UTD analysis; small sized array; near-in sidelobe levels

Subjects: Antenna arrays; Antenna theory

References

    1. 1)
      • M. Orefice , R.S. Elliott . Design of waveguide-fed series slot array. IEE Proc. H , 165 - 169
    2. 2)
      • S.H. Schaffner , D. Kim , R.S. Elliott . Compromises among optimum sum and difference patterns for planar waveguide arrays. Alta Freq. , 312 - 319
    3. 3)
      • Notes for the Short Course on the ‘Modern geometrical theory of diffraction’. Dept. of Electrical Eng., Ohio State University, Columbus, Ohio, USA.
    4. 4)
      • D.A. McNamara , L. Botha . Effect of finite rectangular groundplane on near-in sidelobes of small linear slotted waveguide arrays. Electron. Lett. , 13 , 858 - 859
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