Perancangan Antena Mikrostrip Siw Cavity-Backed Modified Dumbell-Shaped Slot Untuk Pengaplikasian Pada 5G
DOI:
https://doi.org/10.22441/jte.2020.v11i2.008Keywords:
Mikrostrip, Millimeter Wave, Slot, Substrate Integrated Waveguide (SIW), HFSSAbstract
Perkembangan teknologi dan informasi yang semakin meningkat mengakibatkan kebutuhan masyarakat juga semakin meningkat salah satunya adalah kebutuhan akan teknologi telekomunikasi seluler tanpa kabel (wireless). Perkembangan teknologi seluler di Indonesia yang terakhir berkembang sejak tahun 2010 adalah 4G LTE yang berada pada pita frekuensi yang telah ditentukan pemerintah. Perkembangan teknologi wireless di Indonesia juga sudah sampai pada teknologi 5G, didukung dengan adanya beberapa kajian mengenai implementasi 5G di Indonesia. Frekuensi untuk teknologi 5G termasuk ke dalam frekuensi tinggi, yaitu frekuensi dengan panjang gelombang yang kecil, frekuensi ini yang disebut sebagai millimeterwave (mmWave). Dalam penelitian ini dilakukan perancangan antena Substrate Integrated Waveguide (SIW) yang dibuat menggunakan PCB berjenis FR4 epoxy dengan ketebalan 1,6 mm dan nilai konstanta dielektrik 4.4-4.9, yang bekerja pada frekuensi 28 GHz, dengan menambahkan slot untuk memperbesar gain antena. Perancangan dilakukan menggunakan software Ansoft High Frequency Structure Simulator (HFSS) v16.0. Sedangkan pengukuran antena dilakukan di Laboratorium Pusat penelitian Elektronika dan Telekomunikasi LIPI Bandung. Hasil simulasi antena bekerja pada frekuensi 27,9 – 29,3 GHz dengan bandwidth 1,4 GHz dan faktor refleksi mencapai -27,43 dB. Sementara hasil pengukuran menunjukan antena bekerja pada frekuensi 29,56 – 30,66 GHz dengan bandwidth 1,1 GHz dan faktor refleksi -24,35 dB. Hasil simulasi menunjukkan adanya peningkatan gain, dengan peningkatan gain paling maksimum yaitu sebesar 5,49 dB. Perbedaan ini mungkin disebabkan kesalahan dalam proses fabrikasi, proses menyolder yang tidak sempurna serta kesalahan dalam pengambilan data pengukuranDownloads
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