Perancangan Antena Ferrite Rod H-Field untuk Sistem Penerima eLORAN Pada Frekuensi 100 KHz

Setiawan, Asens Susena Tri (2026) Perancangan Antena Ferrite Rod H-Field untuk Sistem Penerima eLORAN Pada Frekuensi 100 KHz. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem navigasi satelit (GNSS) rentan terhadap jamming dan spoofing sehingga memerlukan sistem cadangan seperti Enhanced Long-Range Navigation (eLORAN) yang bekerja pada frekuensi 100 kHz. Penerima eLORAN menggunakan antena magnetik (H-field) berbasis ferrite rod karena ringkas dan tahan terhadap precipitation static. Tugas akhir ini merancang antena ferrite rod H-field pasif untuk penerima eLORAN pada 100 kHz serta menganalisis pengaruh bentuk inti ferit dan konfigurasi lilitan terhadap performa. Perancangan menggabungkan pemodelan analitik sebagai acuan dengan simulasi Finite Element Method (FEM) menggunakan ANSYS Maxwell 3D (medan dekat) dan ANSYS HFSS (medan jauh), dengan inti ferit Mn-Zn (μi = 3300) dan kawat Litz AWG 26. Empat geometri yang dibandingkan yaitu Silinder, H-Shaped, Cone Lead, dan Oblate Lead. Konfigurasi optimal dicapai Oblate Lead (kepala [3 × 18] mm, bagian tengah [21,5 × 10] mm, cakupan 100%) dengan permeabilitas tampak 14,95, induktansi 97,95 μH, Faktor Kualitas 311,07, dan sensitivitas minimum 5,9 × 10⁻⁸ Vms/A, lebih ringkas dari silinder pada asumsi resistansi DC.
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Global Navigation Satellite Systems (GNSS) are vulnerable to jamming and spoofing, motivating backup systems such as Enhanced Long-Range Navigation (eLORAN), which operates at 100 kHz. The eLORAN receiver uses a magnetic (H-field) ferrite rod antenna because it is compact and immune to precipitation static. This work designs a passive H-field ferrite rod antenna for an eLORAN receiver at 100 kHz and analyzes the effect of ferrite core geometry and winding configuration on performance. The design combines analytical modeling as a reference with Finite Element Method (FEM) simulation using ANSYS Maxwell 3D (near-field) and ANSYS HFSS (far-field), with an Mn-Zn ferrite core (μi = 3300) and AWG 26 Litz wire. The four geometries compared are Cylinder, H-Shaped, Cone Lead, and Oblate Lead. The optimal configuration is the Oblate Lead (head [3 × 18] mm, mid-section [21.5 × 10] mm, 100% coverage), achieving an apparent permeability of 14.95, an inductance of 97.95 μH, a Quality Factor of 311.07, and a minimum sensitivity of 5.9 × 10⁻⁸ Vms/A, more compact than the cylinder under the DC-resistance assumption.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Antena Ferrite Rod, eLORAN, Faktor Kualitas, H-Field, Permeabilitas Tampak, simulasi FEM, Apparent Permeability, eLORAN, FEM simulation, Ferrite Rod Antenna, H-Field, Quality Factor
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.6 Antennas (Electronics) T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Telecommunication Engineering > 20202-(S1) Undergraduate Thesis
Depositing User:	Asens Susena Tri Setiawan
Date Deposited:	23 Jul 2026 04:24
Last Modified:	23 Jul 2026 04:24
URI:	http://repository.its.ac.id/id/eprint/136402

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