CD Skripsi

Rancang Bangun Antena Fleksibel Untuk Mendeteksi Tumor Pada Kepala

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ABSTRACT
Cancer is one of the leading causes of death worldwide. UWB microwave imaging
technology is one of the most promising technologies in the field of medical
diagnosis, due to its non-ionizing (Non-Ionizing) properties and low cost. An
important element in a microwave imaging system is the antenna. Antenna
functions in sending and receiving signals to objects scattered around it. In this
study, a 5-element flexible antenna using the Coplanar Waveguide feeding
technique was constructed in a cap as the measuring medium, and was designed
for head tumor detection applications. The flexible antenna is designed and
simulated using CST Microwave Studio simulation software and operates at a
frequency of 5.8 GHz according to Ultra Wideband standards with a bandwidth of
3.1 GHz (4.78 GHz – 7.88 GHz). The 5 element flexible antenna is fabricated
using a flexible polydimethylsiloxane substrate with silver nanowire which
operates at a frequency of 5.8 GHz and a performance comparison of the return
loss, bandwidth, gain, and VSWR of the antenna will be compared. The simulation
results on the flexible design of the PDMS substrate are -29.54 dB return loss, 3.1
GHz bandwidth, 2.34 dBi gain and 1.06 VSWR. The results of the fabrication on
the flexible design of the PDMS substrate are the return loss value of -15.07 dB
and bandwidth of 2.4 GHz. In this study, the fabricated antenna was also
measured the flexibility of the bending effect which affects the return loss and
antenna bandwidth, the frequency shift that occurs is not so significant because at
5.5 GHz the antenna's return loss remains at -10 dB and the stretching effect is
very strong, it affect the frequency and bandwidth that occurs. Under normal
conditions, the antenna has a bandwidth of 2.6 GHz after stretching 20%, the
bandwidth of the antenna below -10 db is 1.02 GHz. The antennae in the quadrant
with the tumor had a higher amplitude value than the quadrant without the tumor.
This study has the final result of measurement in the time domain to determine the
presence of tumors on the head by analyzing the difference in amplitude graphs.
The difference in the amplitude graph with a higher value indicates that the
antenna crosses the area of the tumor.
Keyword: Flexible antenna, Coplanar Waveguide, Ultra Wideband, Head tumor
detection

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 04. 121 (0123)

Penerbit

Pekanbaru : Universitas Riau –Fakultas Teknik – Teknik elektro., 2021

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 04. 121 (0123)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK ELEKTRO

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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