Desain dan Analisa Subarray untuk Antena Massive MIMO 3,5 GHz Pada BTS Indoor 5G

Amillia, Fitri (2023) Desain dan Analisa Subarray untuk Antena Massive MIMO 3,5 GHz Pada BTS Indoor 5G. Doctoral thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Multiple Input Multiple Output (MIMO) merupakan sistem komunikasi nirkabel yang menggunakan banyak antena di sisi pemancar maupun penerima. Sistem ini dapat meningkatkan kualitas komunikasi nirkabel pada jaringan teknologi 5G. Keunggulan 5G memiliki kecepatan data yang sangat tinggi dan
latency yang sangat rendah. Antena merupakan perangkat penting dalam sistem telekomunikasi.
Tahapan penelitian ini diawali dengan menentukan parameter kinerja antena. Selanjutnya, proses penerapan desain elemen tunggal menggunakan teknik parasitic patch untuk memperlebar bandwidth untuk memenuhi kebutuhan antena massive MIMO. Kemudian desain subarray dan desain power divider menggunakan branch line coupler untuk mengintegrasikan subarray antena massive MIMO dengan elemen parasitic patch. Langkah terakhir adalah membuat dan mengukur antena.
Hasil simulasi dan pengukuran elemen tunggal menggunakan parasitc patch menunjukkan bahwa return loss dan bandwidth berada dalam parameter kinerja antena. Kemudian hasil simulasi dan pengukuran sub-rray 2x2 yaitu fractional bandwidth 20%, subarray memenuhi kinerja yang diinginkan dengan return loss kurang dari 10 dB dan lebar bandwidth hingga 730MHz. Efek mutual coupling ditekan hingga kurang dari 20 dB dalam rentang frekuensi 3,202 GHz − 3,934 GHz. Kemudian, ada dua jenis power divider yang direalisasikan yaitu power divider 1 ke 2 dan 1 ke 4. Hasil simulasi dan
pengukuran menunjukkan bahwa bandwidth, return loss dan insertion loss masih dalam spesifikasi yang diinginkan. Realisasi power divider yang terintegrasi dalam subarray beroperasi pada frekuensi 3,5 GHz dapat diterapkan pada antena massive MIMO di BTS 5G indoor.
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Multiple-Input Multiple-Output (MIMO) is wireless communication system that uses multiple antennas on both the transmitting and receiving sides. This system can improve the quality of wireless communication on 5G technology
networks. The advantage of 5G is that it has very high data rates and very low latency. Antenna is an important device in the telecommunications system.
Establishing the antenna's performance characteristics is the first step in this research stage. Additionally, a parasitic patch technique is used during the implementation of a single element design to increase the bandwidth to
accommodate the demands of massive MIMO antennas. The MIMO subarray antenna then integrated with parasitic patch elements using a branch line coupler in the subarray and power divider designs. Fabricating and measuring the antenna
is the last stage.
The simulation results and single element measurements using a parasitic patch show that the return loss and bandwidth are within the parameters of the antenna performance. Then the results of the simulation and measurement of the 2x2 subarray are fractional bandwidth 20%, the subarray meets the desired performance with a return loss of less than 10 dB and a wide bandwidth of up to 730MHz. The mutual coupling effect is suppressed to less than -20 dB in the
frequency range 3.202 GHz − 3.934 GHz. Then, there are two types of power dividers that are realized, namely power dividers 1 to 2 and 1 to 4. The simulation and measurement results show that the bandwidth, return loss and insertion loss are still within the desired specifications. Realization of a power divider that is integrated in a subarray operating at a frequency of 3.5 GHz can be applied to massive MIMO antennas in indoor 5G BTS.

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	Antenna, subarray, massive MIMO, bandwidth, mutual coupling, parasitic patch.,Antena, subarray, massive MIMO, bandwidth, mutual coupling, parasitic patch.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20001-(S3) PhD Thesis
Depositing User:	FITRI AMILLIA
Date Deposited:	10 Feb 2023 08:48
Last Modified:	10 Feb 2023 08:48
URI:	http://repository.its.ac.id/id/eprint/96940

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