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Design and Fabrication of Dual Linear Polarization Antenna for mmWave Application using FR-4 Substrate

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2022, 27(3), pp.71-77
  • DOI : 10.9708/jksci.2022.27.03.071
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : February 14, 2022
  • Accepted : March 16, 2022
  • Published : March 31, 2022

Tea-Il Choi 1 Joong Han Yoon 2

1광주여자대학교
2신라대학교

Accredited

ABSTRACT

In this paper, we propose 1⨯2 array antenna with dual linear polarization characteristics for mmWave band operation. The proposed antenna is designed two microstirp feeding structure and FR-4 substrate, which is thickness 0.4 mm, and the dielectric constant is 4.3. The size of 1⨯2 array antenna is 2.33 mm⨯2.33 mm, and total size of array antenna is 13.0 mm✕6.90 mm. From the fabrication and measurement results, bandwidths of 1.13 GHz (28.52〜29.65 GHz) for port 1 and 1.08 GHz (28.45 〜29.53 GHz) for port 2 were obtained based on the impedance bandwidth. Cross polarization ratios are obtained from 7.68 dBi to 16.90 dBi in case of vertical polarization, and from 7.46 dBi to 15.97 dBi in case of horizontal polarization for input port 1, respectively. Also, cross polarization ratios are obtained from 8.59 dBi to 13.72 dBi in case of vertical polarization and from 9.03 dB to 14.0 dB in case of horizontal polarization for input port 2, respectively.

Citation status

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