Design and Performance Analysis of Linear Array Microstrip Antennas with Mitered-Bends Feeding Network for X-Band Radar Applications

Authors

  • Bidadariana Yunia Utami Putri Institut Teknologi Telkom Purwokerto
  • Eka Setia Nugraha Institut Teknologi Telkom Purwokerto
  • Anantia Prakasa Institut Teknologi Telkom Purwokerto
  • Subroto Fajar Siddiq PT Len Industri (Persero)

DOI:

https://doi.org/10.14203/jet.v20.9-15

Keywords:

X-band radar, microstrip antennas, linear array, mitered-bends, gain, unidirectional

Abstract

To accurately detect objects, the radar antenna must have a high gain for the desired range. The antenna uses an array method to increase the gain. It has a unidirectional radiation pattern to meet the X-band radar implementation as a ship navigation tool. The X-band radar works at high frequencies. Thus, it will be more sensitive in detecting small particles, including rain particles. The use of a mitered-bends feeding network method by cutting the 90-degree curve is to maximize the power transmitted to reduce losses. This method spreads the bandwidth of the antenna. The antenna is designed and fabricated into a linear array of 8 elements, using the R04003C Rogers substrate with a microstrip line supply. This study limits up to 8 elements of radiation, followed by the addition of a method to expand the bandwidth of antennas. Considering material limitation and duration of antenna design. The final antenna dimensions are 142.40 mm × 42.8 mm. The measuring results show fc = 9.496 GHz, S11 = -32.64 dB, VSWR 1.05, bandwidth = 41.9 MHz (9.5159 GHz - 9.4740 GHz), and gain 8.8 dB as well as a linear polarized antenna with unidirectional pattern direction. The radar antenna tends to have a narrow beamwidth and high gain.

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Author Biographies

  • Bidadariana Yunia Utami Putri, Institut Teknologi Telkom Purwokerto
    Fakultas Teknik Telekomunikasi dan Elektro
  • Eka Setia Nugraha, Institut Teknologi Telkom Purwokerto
    Fakultas Teknik Telekomunikasi dan Elektro
  • Anantia Prakasa, Institut Teknologi Telkom Purwokerto
    Fakultas Teknik Telekomunikasi dan Elektro
  • Subroto Fajar Siddiq, PT Len Industri (Persero)
    Center for Technology & Innovation Division

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Published

2020-08-31

Issue

Vol. 20 No. 1 (2020)

Section

Articles

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How to Cite

[1]
“Design and Performance Analysis of Linear Array Microstrip Antennas with Mitered-Bends Feeding Network for X-Band Radar Applications”, J. Elektron. dan Telekomun., vol. 20, no. 1, pp. 9–15, Aug. 2020, doi: 10.14203/jet.v20.9-15.