Pengembangan Prototipe Antena Mikrostrip Ultrawideband pada Pita Frekuensi Lebar 1-18 GHz

Rahmatulloh, Mohammad Arif (2025) Pengembangan Prototipe Antena Mikrostrip Ultrawideband pada Pita Frekuensi Lebar 1-18 GHz. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan teknologi komunikasi nirkabel yang pesat, seperti 5G dan Internet of Things (IoT), menuntut penggunaan antena dengan kinerja tinggi, bandwidth lebar, serta return loss yang rendah. Penelitian ini bertujuan untuk merancang dan menganalisis performa antena mikrostrip berbentuk elips dengan konfigurasi ultra-wideband (UWB) menggunakan teknik feeedline Coplanar Waveguide (CPW) dengan variasi penambahan slot-T. Penelitian diawali dengan perancangan antena berbasis metode numerik Finite-Difference Time-Domain (FDTD), dilanjutkan dengan proses simulasi dan optimasi untuk memperoleh parameter antena yang optimal. Parameter utama yang dianalisis meliputi return loss (S11), bandwidth, gain, pola radiasi, dan Voltage Standing Wave Ratio (VSWR). Setelah hasil simulasi memenuhi spesifikasi, antena difabrikasi dan diuji menggunakan Vector Network Analyzer (VNA). Hasil yang diperoleh menunjukkan bahwa penambahan slot pada patch terbukti efektif dalam meningkatkan kinerja antena secara keseluruhan, baik dari segi bandwidth, return
loss, maupun gain, sehingga desain ini direkomendasikan untuk aplikasi ultrawideband. Dengan demikian, desain antena ini berpotensi untuk diimplementasikan pada berbagai aplikasi komunikasi pita lebar yang memerlukan efisiensi tinggi.
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The rapid development of wireless communication technologies, such as 5G and the Internet of Things (IoT), demands the use of high-performance antennas with wide bandwidth and low return loss. This study aims to design and analyze the performance of an elliptical microstrip antenna with an ultra-wideband (UWB) configuration using the Coplanar Waveguide (CPW) feedline technique with variations in T-slot additions. The research begins with the antenna design based on the Finite-Difference Time-Domain (FDTD) numerical method, followed by simulation and optimization processes to obtain optimal antenna parameters. The key parameters analyzed include return loss (S11), bandwidth, gain, radiation pattern, and Voltage Standing Wave Ratio (VSWR). Once the simulation results met the required specifications, the antenna was fabricated and tested using a Vector Network Analyzer (VNA). The results indicate that the addition of a slot on the patch effectively improves the overall performance of the antenna in terms of bandwidth, return loss, and gain, making this design highly recommended for ultrawideband applications. Therefore, this antenna design has strong potential for implementation in various wideband communication systems that require high efficiency.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	antena mikrostrip, ultrawideband,patch elips, DGS, SLot-T, microstrip antenna, ultrawideband, elliptical patch, Defected Ground Structure (DGS)
Subjects:	Q Science > QC Physics Q Science > QC Physics > QC665.E38 Electric fields. Q Science > QC Physics > QC973.4.T76 Tropospheric radio waves Including absorption, propagation, etc.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45101-(S2) Master Thesis
Depositing User:	Mohammad Arif Rahmatulloh
Date Deposited:	05 Aug 2025 06:41
Last Modified:	05 Aug 2025 06:41
URI:	http://repository.its.ac.id/id/eprint/127495

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