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Wahju Adi Prijono
Departemen Teknik Elektro, Universitas Brawijaya

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PERANCANGAN ANTENA MIKROSTRIP BINTANG SEGI 18 DENGAN BENDING 100 mm, 220 mm, DAN 450 mm PADA FREKUENSI ISM BAND Muhammad Arkan Roneto Jatra; Rudy Yuwono; Wahju Adi Prijono
Jurnal Mahasiswa TEUB Vol. 10 No. 2 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

ABSTRAKAntena mikrostrip adalah antena yang memiliki ciri khas yaitu ukurannya yang kecil dan bentuknya yang menyerupai potongan atau bilah. Antena mikrostrip sering digunakan dalam rentang frekuensi gelombang mikro. Antena mikrostrip memiliki keunggulan yang menjadikannya pilihan untuk digunakan dalam aplikasi komersial ataupun penelitian. Antena yang fleksibel atau tekuk (bending) adalah salah satu komponen terpenting pada perkembangan aplikasi nirkabel. Dengan menekuk antena, maka antena dapat lebih efisien untuk diaplikasikan pada berbagai macam komponen yang memiliki ukuran tekuk berbeda-beda. Penelitian ini bersifat analisis, yang dimana berisikan tentang komparasi perancangan antena mikrostrip patch bentuk bintang bersudut 18 dengan bending 100 mm, 220 mm, dan 450 mm menggunakan material Roger Duroid RT5880 dan FR-4 pada aplikasi CST Studio Suite 2019 untuk simulasi antena dan alat Nano VNA serta Arinst VNA untuk pengukuran antena. Antena mikrostrip ini dirancang pada frekuensi ISM band (2.4 GHz). Parameterparameter antena diantaranya adalah return loss, VSWR, gain serta directivity yang digunakan untuk menganalisis perbandingan antara kedua subsrat dan ketiga bending antena tersebut manakah yang dapat berfungsi lebih baik. Berdasarkan perancangan antena, didapatkan hasil yang paling baik adalah antena mikrostrip bintang segi 18 bending 100 mm dengan material FR-4. Pada hasil simulasi didapatkan 1,1521177 untuk VSWR, -23,013727 dB untuk return loss, 3,4475228 dBi untuk gain, dan 4,886352 dBi untuk directivity. Pada hasil pengukuran didapatkan 1.227 untuk VSWR dan -14.632 dB untuk return loss.Kata kunci: antena, antena mikrostrip, ISM band, bending, VSWR, return loss, directivity, gain.ABSTRACTMicrostrip antenna is antenna that has distinctive characteristics, namely their small size and shape that resembles a cut or blade. Microstrip antennas are often used in the microwave frequency range. Microstrip antennas have advantages that make them an option for use in commercial or research applications. Flexible or bending antennas are one of the most important components to the development of wireless applications, including usable electronics and sensor systems. Through bending the antenna, the antenna can be more efficient to be applied to various components that have different bending sizes. This research is analytical, which contains the comparison of the design of microstrip antennas patch 18 angular stars with bending of 100 mm, 220 mm, and 450 mm using Roger Duroid RT5880 and FR-4 materials in the CST Studio Suite 2019 application for antenna simulation and Nano VNA and Arinst VNA tools for antenna measurement. These microstrip antennas are designed at the ISM band frequency (2.4 GHz). Antenna parameters include return loss, VSWR, gain and directivity which are used to analyze the comparison between the two antennas substrate which can function properly. Based on the antenna design, the best result is a 100 mm bending microstrip antenna 18 angled star shape with FR-4 material. The simulation results were obtained at 1.1521177 for VSWR, -23.013727 dB for return loss, 3.4475228 dBi for gain, and 4,886352 dBi for directivity. The measurement results were obtained at 1.227 for VSWR dan -14.632 dB for return loss.Keywords: antenna, microstrip antenna, ISM band, bending, VSWR, return loss, directivity, gain.
ANALISA PERFORMANSI RADIO FREQUENCY MODULATION di TARUTUNG SUMATERA UTARA Febryanto Marthyn Sutrisno Simanjuntak; Sigit Kusmaryanto; Wahju Adi Prijono
Jurnal Mahasiswa TEUB Vol. 10 No. 4 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

The development of technology, especially in the field of wireless communication, has developed quitte rapidly. Software Defined Radio (SDR) technology is one of the births of wireless communication technology which is a new challenge for communication engineers. The development of SDR systems has made significant progress in recent years because these systems have the ability to improve the quality of previous analog radio communications and can be used as a replacement for hardware implementations. SDR can be used when redesigning a radio software system where later the parameters can be changed to get the desired quality using the existing codes. To be able to solve code and process radio signals required hardware such as computers to support SDR technology. An application that runs inside GNU Radio by construct block. So the purpose of this thesis is to determine the frequency allocation of FM radio stations that are used in an area at the same time. The design of the spectrum analyzer in this thesis is based on SDR using an RTL-SDR type 2832U dongle. This spectrum research used RTL-SDR, suggested improvements such as the need for an increase in the RTL-SDR specifications used in this thesis, need to do research and design using other SDR and it is necessary to add facilities by setting the resolution bandwidth to determine the level of some radio signals.Index Terms – RTL-SDR, GNU Radio, Spectrum Analyzer