Subuh Pramono, S. Budi Basuki, Tommi Hariyadi
This paper presents a half triangular Comb-shaped slits edge Antipodal Vivaldi Antenna (Comb-AVA) as compared to the conventional Antipodal Vivaldi Antenna (AVA) design. This proposed antenna covers 20-40 GHz spectrum. This Comb-AVA antenna is designed for the 5G application which is addressed to cover a dualband 28/38 GHz frequencies. A half triangular comb-shaped slits edge structure is employed to investigate its effects on antenna parameters. This proposed Comb-AVA occupies a 25×8 mm2 of FR 4 substrate (ϵγ tan δ=0.02, thinkness 1.6 mm). It has impedance bandwidth (S11≤-10 dB) along 20-40 GHz spectrum and fractional bandwidth (FBW) ≥0.5. It means that the bandwidth is categorized as ultra wideband (UWB). In addition, there is 11 dB refinement of return loss in the Comb-AVA design at 38 GHz frequency. VSWR value is in range of 1.054 to 1.396. This proposed antena also has a wider angular width (3 dB) than the AVA. Higher directivity and gain is generated by Comb-AVA at 28 GHz. This proposed antenna has good performances and suitable for 5G application. Copyright © 2018 Institute of Advanced Engineering and Science. All rights reserved.
Department of Electrical Engineering, Universitas Sebelas Maret Surakarta, Surakarta, Indonesia; Department of Electrical Engineering, Politeknik Negeri Semarang, Indonesia; Department of Electrical Engineering, Universitas Pendidikan Indonesia, Indonesia
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