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Design and Characteristics of Low-Loss Polarization Grid.

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Title: Design and Characteristics of Low-Loss Polarization Grid.
Authors: Kondo, Akira1, Kagoshima, Kenichi1
Source: Electronics & Communications in Japan, Part 1: Communications. Dec89, Vol. 72 Issue 12, p69-78. 10p.
Subjects: Data transmission systems, Digital communications, Broadband communication systems, Laminated materials, Polarization (Electricity), Polarization of electromagnetic waves
Abstract: Polarization diplexing is possible by of a grid plate and hence a frequency antenna can be realized. Usually, the characteristics of a grid plate can be evaluated by an analysis based on an equivalent circuit. However, for a practical grid with a support mechanism made of dielectric or honeycomb structures, the reflection level of the unwanted polarization at the time for transmission of the desired wave is larger than the value for the metal grid only and hence the results are different from those by the equivalent circuit analysis. In this paper, the characteristics of the grid with a dielectric support layer are analyzed by means of full-wave analysis so that the relationship between the thickness of the dielectric support layer and the reflection level of the unwanted polarization is detected. Next, a method is proposed for suppression of this unwanted polarization in a grid with a dielectric support layer. The validity was confirmed by theoretical analysis and experiments. Further, the design method and the numerical results are presented for a low-loss polarization diplexing grid used in a frequency reuse antenna. It is pointed out that there exists an optimum parameter that minimizes the insertion loss in the operating bandwidth. [ABSTRACT FROM AUTHOR]
Copyright of Electronics & Communications in Japan, Part 1: Communications is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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  Data: Design and Characteristics of Low-Loss Polarization Grid.
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  Data: <searchLink fieldCode="AR" term="%22Kondo%2C+Akira%22">Kondo, Akira</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kagoshima%2C+Kenichi%22">Kagoshima, Kenichi</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Electronics+%26+Communications+in+Japan%2C+Part+1%3A+Communications%22">Electronics & Communications in Japan, Part 1: Communications</searchLink>. Dec89, Vol. 72 Issue 12, p69-78. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Data+transmission+systems%22">Data transmission systems</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+communications%22">Digital communications</searchLink><br /><searchLink fieldCode="DE" term="%22Broadband+communication+systems%22">Broadband communication systems</searchLink><br /><searchLink fieldCode="DE" term="%22Laminated+materials%22">Laminated materials</searchLink><br /><searchLink fieldCode="DE" term="%22Polarization+%28Electricity%29%22">Polarization (Electricity)</searchLink><br /><searchLink fieldCode="DE" term="%22Polarization+of+electromagnetic+waves%22">Polarization of electromagnetic waves</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Polarization diplexing is possible by of a grid plate and hence a frequency antenna can be realized. Usually, the characteristics of a grid plate can be evaluated by an analysis based on an equivalent circuit. However, for a practical grid with a support mechanism made of dielectric or honeycomb structures, the reflection level of the unwanted polarization at the time for transmission of the desired wave is larger than the value for the metal grid only and hence the results are different from those by the equivalent circuit analysis. In this paper, the characteristics of the grid with a dielectric support layer are analyzed by means of full-wave analysis so that the relationship between the thickness of the dielectric support layer and the reflection level of the unwanted polarization is detected. Next, a method is proposed for suppression of this unwanted polarization in a grid with a dielectric support layer. The validity was confirmed by theoretical analysis and experiments. Further, the design method and the numerical results are presented for a low-loss polarization diplexing grid used in a frequency reuse antenna. It is pointed out that there exists an optimum parameter that minimizes the insertion loss in the operating bandwidth. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Electronics & Communications in Japan, Part 1: Communications is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/ecja.4410721207
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 69
    Subjects:
      – SubjectFull: Data transmission systems
        Type: general
      – SubjectFull: Digital communications
        Type: general
      – SubjectFull: Broadband communication systems
        Type: general
      – SubjectFull: Laminated materials
        Type: general
      – SubjectFull: Polarization (Electricity)
        Type: general
      – SubjectFull: Polarization of electromagnetic waves
        Type: general
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      – TitleFull: Design and Characteristics of Low-Loss Polarization Grid.
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            NameFull: Kondo, Akira
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            NameFull: Kagoshima, Kenichi
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            – D: 01
              M: 12
              Text: Dec89
              Type: published
              Y: 1989
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              Value: 12
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            – TitleFull: Electronics & Communications in Japan, Part 1: Communications
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