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All Journal Majalah Ilmiah Pengkajian Industri Green Intelligent Systems and Applications
Wahdiyat, Aditya Inzani
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Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Transportation

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EVALUASI DESAIN KAPAL PATROLI - OPV BERBASIS RCS UNTUK MENGURANGI PANTAUAN RADAR LAWAN Wahdiyat, Aditya Inzani; Samudro, Samudro; Zulkifi, Adrian
Majalah Ilmiah Pengkajian Industri Vol 13, No 3 (2019): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (808.996 KB) | DOI: 10.29122/mipi.v13i3.3101

Abstract

Sebagai negara kepulauan Indonesia memerlukan armada kapal perang nasional yang kuat untuk mejaga kedaulatan NKRI, mengamankan serta melindungi seluruh wilayah yurisdiksi perairan Indonesia. Ditinjau aspek geografi strategis, wilayah perairan Indonesia terbuka dikelilingi perairan internasional, berpotensi rawan konflik dan ancaman dari luar. Karenanya diperlukan sarana kapal-kapal perang yang berfungsi sebagai kapal patrol lepas pantai dari berbagai ukuran sesuai misi dan penugasan operasi perang maupun patroli. Kapal perang atau kapal patroli sebagai kapal permukaan perlu memiliki karakteristik disain lambung khusus untuk penyamaran, tidak mudah dipantau radar musuh saat beroperasi. Untuk itu pada paper ini dilakukan kajian evaluasi desain kapal perang atau kapal patroli menggunakan prediksi nilai Radar Cross Section (RCS) lambung kapal. Pada penilaian RCS digunakan metode Shooting and Bouncing Ray (SBR) berdasarkan pendekatan Geometrics optics, memanfaatkan propagasi cahaya sebagai gelombang elektromagnetik lurus, dianalisa kekuatan arus serta dihitung besar dan arah pantulannya.  Semakin besar nilai RCS suatu objek bangunan kapal, akan semakin mudah kapal diditeksi radar musuh. Hasil kajian penilaian RCS pada desain kapal KC-OPV60 dibandingkan nilai standar kapal ukuran 60 m menunjukan nilai RCS masih setara dan memenuhi ketentuan. Dengan lebih memperkecil penilaian RCS disain kapal, diharapkan kapal perang/ kapal patroli akan mampu beroperasi secara optimal dalam menjalankan misi operasi secara aman tanpa terdeteksi radar.
Radiation Performance Comparison and Analysis of Ku-band Microstrip Antennas with Diamond, Octagonal, and Circular Array Configurations Adriansyah, Muhammad Athallah; Wahdiyat, Aditya Inzani; Apriono, Catur
Green Intelligent Systems and Applications Volume 4 - Issue 2 - 2024
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/gisa.v4i2.502

Abstract

Phased array antennas are essential in modern communication systems, particularly within the Ku-band, which is widely used for satellite communications and radar applications due to its high data rate capabilities. This paper explores the radiation characteristics of Ku-band microstrip antennas arranged in diamond, octagonal, and circular arrays, focusing on uniform excitation to ensure consistency across evaluations. Using CST Microwave Studio 2024 for simulations, the study found that the rectangular array provides the highest gain and narrowest beamwidth, making it suitable for applications where directional accuracy is critical. However, this configuration also resulted in higher sidelobe levels, which can be problematic in environments where minimal interference is required. The diamond array, while exhibiting lower gain, achieved superior sidelobe suppression, making it ideal for scenarios where reducing interference is prioritized over maximizing directivity. The octagonal and circular arrays provided balanced performance across all metrics, offering versatile options for various operational needs. These results provide valuable guidance for optimizing phased array designs to meet specific requirements in Ku-band applications.
Co-Authors Adriansyah, Muhammad Athallah Catur Apriono Samudro, Samudro Zulkifi, Adrian