CD Skripsi

Perancangan Sensor Antena Untuk Pengukuran Konsentrasi Garam Atau Gula Dalam Air

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ABSTRACT
An antenna-based sensor was designed for the measurement of salt and sugar concentrations in water, operating within the frequency range of 1–3 GHz. The sensor was implemented using two types of substrates: Polyethylene Terephthalate (PET) with a thickness of 0.135 mm, and FR-4 with a thickness of 1.6 mm. Capacitive coupling was employed to achieve narrow bandwidths of 115 MHz on the PET substrate and 66 MHz on the FR-4 substrate. The use of a narrow bandwidth was intended to enhance the sensitivity of the sensor, thereby allowing for the clear detection of frequency shifts. Measurements were conducted using sample concentrations ranging from 5 g to 100 g dissolved in 250 mL of water. The experimental results demonstrated a frequency shift from 1.943 GHz to 2.007 GHz for salt solutions, and from 1.953 GHz to 2.005 GHz for sugar solutions. The measured magnitude (S11) values increased from −20.41 dB to −15.65 dB for salt solutions, and from −19.98 dB to −19.41 dB for sugar solutions. The measurement error was found to be minimal, with a maximum deviation of only 0.002 GHz.
Keywords: Antenna sensor, capacitive coupling, salt and sugar solution

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2107112718

Penerbit

Pekanbaru : Universitas Riau – F.TEKNIK – Elektro., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2107112718

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

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