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Compact wideband five‐port reflectometer based on symmetrical waveguide ring junction for synthetic microwave imaging applications.

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Title: Compact wideband five‐port reflectometer based on symmetrical waveguide ring junction for synthetic microwave imaging applications.
Authors: Al‐Bawri, Samir Salem1 (AUTHOR) s.albawri@gmail.com, Islam, Mohammad Tariqul2 (AUTHOR), Jit Singh, Mandeep1 (AUTHOR), Islam, Md. Tarikul3 (AUTHOR)
Source: International Journal of Communication Systems. Feb2022, Vol. 35 Issue 3, p1-14. 14p.
Subjects: Microwave imaging, Reflectometer, Reflectance, Impedance matching, Telecommunication satellites
Abstract: Summary: A compact and symmetrical five‐port reflectometer (FPR) for microwave imaging application is introduced in this paper. The proposed FPR shows a wide operational impedance matching bandwidth in the frequency span of 1.55–5.31 GHz (about 109.6%). It consists of three layers with a compact size of 42.4 × 42.4 × 3.2 mm3 and comprises five symmetric branch lines which were designed and optimized as a star junction topology and placed at the middle layer to realize an equivalent value of 70 dB for reflection coefficients at a center operating frequency of 2 GHz. Moreover, the measured results indicate that the FPR prototype has realized accuracies of approximately ± 120° in phase, 0.04 and 0.5 magnitudes of reflections and transmission coefficients, respectively, which are relative in parallel to the simulated and theoretical results. The proposed FPR proves higher efficacious capabilities to be used in microwave imaging for biomedical application systems. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Communication Systems 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.)
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  Data: Compact wideband five‐port reflectometer based on symmetrical waveguide ring junction for synthetic microwave imaging applications.
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  Data: <searchLink fieldCode="AR" term="%22Al‐Bawri%2C+Samir+Salem%22">Al‐Bawri, Samir Salem</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> s.albawri@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Islam%2C+Mohammad+Tariqul%22">Islam, Mohammad Tariqul</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jit+Singh%2C+Mandeep%22">Jit Singh, Mandeep</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Islam%2C+Md%2E+Tarikul%22">Islam, Md. Tarikul</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Communication+Systems%22">International Journal of Communication Systems</searchLink>. Feb2022, Vol. 35 Issue 3, p1-14. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Microwave+imaging%22">Microwave imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Reflectometer%22">Reflectometer</searchLink><br /><searchLink fieldCode="DE" term="%22Reflectance%22">Reflectance</searchLink><br /><searchLink fieldCode="DE" term="%22Impedance+matching%22">Impedance matching</searchLink><br /><searchLink fieldCode="DE" term="%22Telecommunication+satellites%22">Telecommunication satellites</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Summary: A compact and symmetrical five‐port reflectometer (FPR) for microwave imaging application is introduced in this paper. The proposed FPR shows a wide operational impedance matching bandwidth in the frequency span of 1.55–5.31 GHz (about 109.6%). It consists of three layers with a compact size of 42.4 × 42.4 × 3.2 mm3 and comprises five symmetric branch lines which were designed and optimized as a star junction topology and placed at the middle layer to realize an equivalent value of 70 dB for reflection coefficients at a center operating frequency of 2 GHz. Moreover, the measured results indicate that the FPR prototype has realized accuracies of approximately ± 120° in phase, 0.04 and 0.5 magnitudes of reflections and transmission coefficients, respectively, which are relative in parallel to the simulated and theoretical results. The proposed FPR proves higher efficacious capabilities to be used in microwave imaging for biomedical application systems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Communication Systems 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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      – Type: doi
        Value: 10.1002/dac.5032
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 14
        StartPage: 1
    Subjects:
      – SubjectFull: Microwave imaging
        Type: general
      – SubjectFull: Reflectometer
        Type: general
      – SubjectFull: Reflectance
        Type: general
      – SubjectFull: Impedance matching
        Type: general
      – SubjectFull: Telecommunication satellites
        Type: general
    Titles:
      – TitleFull: Compact wideband five‐port reflectometer based on symmetrical waveguide ring junction for synthetic microwave imaging applications.
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            NameFull: Al‐Bawri, Samir Salem
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            NameFull: Islam, Mohammad Tariqul
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            NameFull: Jit Singh, Mandeep
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            NameFull: Islam, Md. Tarikul
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            – D: 01
              M: 02
              Text: Feb2022
              Type: published
              Y: 2022
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              Value: 35
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            – TitleFull: International Journal of Communication Systems
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