Tommi Hariyadi, Tommi
Universitas Pendidikan Indonesia

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Disain dan Simulasi Antena Mikrostrip untuk Aplikasi GSM/EDGE dan UMTS/HSDPA (3G) Hariyadi, Tommi; Sihaloho, Indra Pardomuan
ELECTRANS Vol 12, No 1 (2013): Volume 12, Nomor 1, Tahun 2013
Publisher : Universitas Pendidikan Indonesia

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Abstract

Pada makalah ini akan dibahas tentang disain antena mikrostrip pita lebar yang dapat digunakan untuk aplikasi komunikasi seluler. Antena yang didisain dibuat dengan menggunakan bahan substrat FR4 dengan konstanta dielektrik  dan tebal 1,6 mm. Dimensi keseluruhan dari antena ini adalah 52,5 mm x 21 mm x 1,6 mm.  Antena ini memiliki gain sekitar 1,7 dBi sampai 2,3 dBi dengan pola radiasi omnidirectional dan impedansi 50 Ω. Frekuensi kerja antena ini adalah 1723 MHz hingga 2184 MHz untuk return loss kurang dari -10 dB sehingga antena ini dapat diimplementasikan untuk aplikasi GSM dan UMTS/HSDPA. Dengan ukurannya yang kecil, antena ini dapat dipasang pada perangkat mobile seperti laptop atau tablet.
Rancang Bangun Antena Unidirectional Ultra-Wideband dengan Desain Fork-Shaped Tuning Stub menggunakan Bahan Dielektrik Fr-4 Huda, Yusron Tri; Hariyadi, Tommi; Mulyanti, Budi
ELECTRANS Vol 14, No 1 (2016): Volume 14, Nomor 1, Tahun 2016
Publisher : Universitas Pendidikan Indonesia

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Abstract

In this paper, Ultra Wide Band (UWB) mictrostrip antenna was designed for through-wall-imaging radar. The simulation was carried out using CST Studio. The FR-4 substrate with dielectric constant of 4,3 and thickbess of 1,6 mm is used in this project. The simulation result confirm that antenna have 4,8 GHz of bandwidth from 4,2 to 9 GHz with -10dB return loss. The measured result confirm that antenna have 5 GHz bandwidth from 3,8 to 8,8 GHz with a same return loss.
MODIFIED ULTRA WIDEBAND (UWB) ANTIPODAL VIVALDI ANTENNA FOR 5 Pramono, Subuh; S., Budi Basuki; Hariyadi, Tommi
International Journal of Electrical and Computer Engineering (IJECE) Vol 8, No 5: October 2018 (Part I)
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.808 KB) | DOI: 10.11591/ijece.v8i5.pp3067-3075

Abstract

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 25x8 mm2 of FR 4 substrate (?? = 4.4, tan ?=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 CombAVA 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.