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Antena Patch Array untuk Portable Coastal Radar pada Frekuensi S-Band Folin Oktafiani; Yussi Perdana Saputera
Jurnal Elektronika dan Telekomunikasi Vol. 13 No. 1 (2013)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v13.18-22

Abstract

Penelitian ini bertujuan untuk mendesain antena Portabel Coastal Radar yang bekerja pada frekuensi S-band dengan frekuensi tengah 3 GHz. Jenis antena yang digunakan adalah antena patch mikrostrip. Satu modul antena terdiri dari 4 patch yang di-array secara horisontal dan dicatu dengan menggunakan konektor SMA. Bahan yang digunakan untuk mendesain antena adalah FR4 dengan ketebalan substrat 3,2 mm serta memiliki nilai r= 4,3. Bandwidth yang diperoleh dari hasil simulasi satu modul antena sebesar 80,1 MHz untuk nilai VSWR ≤ 1,5 di mana sudah memenuhi spesifikasi antena yang diinginkan. Hasil simulasi beamwidth horisontal dan gain satu modul antena secara berturut-turut yaitu 37° dan 8,049 dB. Untuk mendapatkan beamwidth horisontal <1° maka satu modul antena di-array secara horisontal sebanyak 30 buah sehingga panjang keseluruhan antena menjadi 3600 mm. Beamwidth horisontal antena array hasil simulasi diperoleh sebesar 0,9° sedangkan gain antena meningkat menjadi 21,11 dB.
Antena Bikonikal Tabung untuk Aplikasi Radar Electronic Support Measures Dengan Pola Radiasi Omni-directional pada Frekuensi 2-18 GHz Yussi Perdana Saputera; Folin Oktaviani; Yuyu Wahyu
Jurnal Elektronika dan Telekomunikasi Vol. 13 No. 1 (2013)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v13.23-27

Abstract

Pada tulisan ini, dibahas hasil penelitian mengenai perancangan antena bikonikal tabung yang memiliki pola radiasi omni-directional yang akan digunakan pada radar Elektronic Support Measures (ESM). Antena bikonikal memiliki karakteristik bandwidth yang sangat lebar (ultra wide band) cocok digunakan pada aplikasi ESM dengan frekuensi 2–18 GHz. Bentuk pola radiasi omni-directional yang dirancang bertujuan agar pada saat ESM melakukan deteksi frekuensi radar (S-, C-, X-, dan Ku-band) dari pancaran radar yang berada di sekitarnya dapat melakukan deteksi ke segala arah. Karena kegunaan ESM sebagai detektor radar dengan sifat sebagai penerima (receiver) dibutuhkan VSWR di bawah 2,5 dengan nilai return loss di bawah -7,436. Antena bikonikal yang dirancang menggunakan dua plat tembaga yang dibentuk kerucut dengan penambahan tabung dengan pemasangan yang saling berhadapan, yang dipasang pada inner connector dan ground. Antena bikonikal dipasang mengunakan balun ¼ λ, agar matching impedansi antara antena dengan konektor 50 Ω. Plat tembaga yang digunakan dengan tebal 0,8 mm.
Franklin Collinear Antenna 2 Levels Different Sides using Array Method 4 Stacking Units 360ᵒ with Integrated Reflector and Power Combiner for ADS-B S-Receiver Mode Yussi Perdana Saputera; Topik Teguh Estu; Teguh Praludi; Ganis Sanhaji
Jurnal Elektronika dan Telekomunikasi Vol. 21 No. 2 (2021)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jet.v21.146-153

Abstract

In this study, an antenna system that could cover the 360ᵒ detection area using the microstrip method was created. The antenna design proposed uses the franklin collinear method with the addition of an array of arms to the left and right of the antenna and the addition of reflectors as a gain enhancer. The four antenna array units are combined using a power divider (combiner) as a unifying antenna. Antenna design with end fire radiation pattern cannot be used in receiving the ADS-B antenna system, because it works only in certain sectors with certain beamwidth, so it needs to be modified by adding an array of 4 units that make up 360◦ radiation of directional diagrams. The addition of the reflector is done by testing the optimum width. The most optimum width is obtained by the width of the side addition on the side of the antenna aperture cross section width of 80 mm. Based on the results of experiments that have been carried out for the design of receiver antennas for ADS-B applications that are required in the form of a radiation pattern in all directions using the reflector technique, the most appropriate gain increase is to use a phase difference for the antennas that are closest both left and right by 90o in ¼ λ conditions in the integration process using a 4 way power combiner. Response return loss at frequency 1.0752 GHz and 1.109 GHz is -15 dB, it means antenna has 33.8 MHz bandwidth with maximum response return loss at -23.22 dB and gain of 7.586 dBi, this antenna design is very suitable for use in the ADS-B application. Design and simulation at this antenna used CST software.
Design and Development of Mini-Compact Wilkinson Power Divider for X-Band Man-Pack Surveillance Radar Yusnita Rahayu; Lara Putri Utami; Teguh Praludi; Topik Teguh Estu; Yussi Perdana Saputera; Anhar Anhar
Jurnal Elektronika dan Telekomunikasi Vol. 23 No. 1 (2023)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jet.539

Abstract

This paper presents the design and development of a mini-compact Wilkinson Power Divider (WPD) operating at 9.3 GHz, with a wide bandwidth of 200 MHz, for the Man-Pack Surveillance Radar (MPSR) application. The design of the WPD was carried out using Advanced Design System (ADS) software with a microstrip feeding technique. The substrate material used in this design was Duroid Roger 5880, which has a thickness (h) of 1.575 mm, dielectric constant (εr) of 2.20, and loss tangent (tan δ) of 0.0009. A WPD was designed, developed, and measured. The simulation results obtained included return loss (S11) -37.50 dB, (S22) -26.59 dB, (S33) -26.09 dB, insertion loss (S21) -3.61 dB and (S31) - 2.55 dB, and isolation (S32) -12.89 dB. Overall, the simulation result parameters worked at a frequency of 9.3 GHz. Furthermore, when the WPD measurement produces a measured return loss of (S11) -28.69 dB, (S22) -28.5 dB, (S33) -29.95 dB, insertion loss (S21) -6.61 dB, and (S31) -7.55 dB, and isolation (S32) -21.89 dB. The dimensions resulting from the realization were 20.5 mm x 20 mm.