Superposition of reflectarray elements for beam scanning with phase range enhancement and loss improvement

Research output: Contribution to journalArticle

Abstract

The utilization of varactor diode is advantageous as it offers the beam scanning capability as required for reflectarray antenna but it often said as the contributor to high losses. A superposition of reflectarray elements controlled by varactor diode is evaluated with dynamic phase range enhanced and loss improved at Ku-band for a successful design of an antenna element in the array environments. Simulated results of reflectarray element under normal incidence of two designs with capacitive variation integrated represents the use of varactor is executed by CST Microwave Studio. In capacitance range of 0.08p to 1.0pF, a dynamic phase range of 323° demonstrates at 13.964 GHz and 14.828 GHz with reflection loss 1.66 dB and 0.99 dB respectively as a result of superposition.

Original languageEnglish
Pages (from-to)1755-1758
Number of pages4
JournalARPN Journal of Engineering and Applied Sciences
Volume11
Issue number3
Publication statusPublished - 2016

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Varactors
Scanning
Diodes
Antennas
Studios
Capacitance
Microwaves

Keywords

  • Beam scanning
  • Capacitive
  • Linear array
  • Reflectarray
  • Varactor

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "Superposition of reflectarray elements for beam scanning with phase range enhancement and loss improvement",
abstract = "The utilization of varactor diode is advantageous as it offers the beam scanning capability as required for reflectarray antenna but it often said as the contributor to high losses. A superposition of reflectarray elements controlled by varactor diode is evaluated with dynamic phase range enhanced and loss improved at Ku-band for a successful design of an antenna element in the array environments. Simulated results of reflectarray element under normal incidence of two designs with capacitive variation integrated represents the use of varactor is executed by CST Microwave Studio. In capacitance range of 0.08p to 1.0pF, a dynamic phase range of 323° demonstrates at 13.964 GHz and 14.828 GHz with reflection loss 1.66 dB and 0.99 dB respectively as a result of superposition.",
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AU - Ramli, M.

AU - Selamat, A.

AU - Misran, Norbahiah

AU - Mansor, Mohd Fais

AU - Islam, Mohammad Tariqul

PY - 2016

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AB - The utilization of varactor diode is advantageous as it offers the beam scanning capability as required for reflectarray antenna but it often said as the contributor to high losses. A superposition of reflectarray elements controlled by varactor diode is evaluated with dynamic phase range enhanced and loss improved at Ku-band for a successful design of an antenna element in the array environments. Simulated results of reflectarray element under normal incidence of two designs with capacitive variation integrated represents the use of varactor is executed by CST Microwave Studio. In capacitance range of 0.08p to 1.0pF, a dynamic phase range of 323° demonstrates at 13.964 GHz and 14.828 GHz with reflection loss 1.66 dB and 0.99 dB respectively as a result of superposition.

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