Insani, Achmad Fauzi (2019) Rancang Bangun Metamaterial Absorber Pita Lebar Dengan Bandwidth Enhancement Untuk Anechoic Chamber Pada Frekuensi S-Band. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian mengenai antena mengalami perkembangan yang pesat dalam beberapa tahun terakhir. Untuk mendapatkan performa antena yang baik, perlu dilakukan pengujian dan pengukuran terhadap antena tersebut. Pengujian antena memerlukan kondisi khusus dan untuk memenuhi kondisi tersebut umumnya pengukuran dan pengujian dilakukan dalam ruangan khusus yang disebut anechoic chamber. Namun keberadaan ruang tersebut masih sangat sedikit, bahkan dalam institusi dan lembaga penelitian sekalipun. Hal ini dikarenakan biaya pembuatannya yang cukup mahal. Solusi yang ditawarkan adalah menggunakan metamaterial absorber (MMA) sebagai pengganti bahan penyusun anechoic chamber. Namun MMA umumnya memiliki pita yang sempit sehingga hanya bekerja optimal pada frekuensi tertentu.
Metode desain yang digunakan pada tugas akhir ini adalah metode studi parameter. Hal ini dilakukan untuk mengetahui karakteristik parameter metamaterial absorber. Selanjutnya, bandwidth enhancement dilakukan melalui metode desain simetris silang.
Dari studi parameter tersebut dapat diperoleh frekuensi kerja metamaterial absorber yang diinginkan, yaitu pada frekuensi S-Band. Bandwidth enhancement dapat dilakukan dengan simetris silang. Dengan pengulangan secara periodik, menghasilkan bandwidth yang semakin lebar, mencakup seluruh S-Band, bahkan Band frekuensi setelahnya, dengan hasil pengukuran menghasilkan nilai absorptivity diatas 80%.
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Antenna research has experienced rapid development in recent years. To get better performance for antenna, test and measurement needs to be done. Antenna test and measurement require special conditions and to fulfill that condition, generally measurements are made inside the special room that called anechoic chamber. But the existence of these rooms is very small, even in the institutions. This is because the manufacture costs are quite expensive. The solution offered is to use metamaterial absorber instead of the anechoic chamber constituent. But the metamaterial absorber generally has a narrow band so that it only works optimally at certain frequencies. The design method used in this final project is the parameter study method. This is done to determine the characteristics of the metamaterial absorber. Furthermore, bandwidth enhancement is done through cross symmetrical design. From the study of parameters it can be obtained the desired metamaterial absorber working frequencyin S-Band frequency. Bandwidth enhancement can be done with cross symmetry. With periodic repetitions, resulting in wider bandwidth, covering all S-Band, even frequency band afterwards. With the measurement results resulting in an absorptivity value above 80%
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.384 8 Ins r-1 2019 |
| Uncontrolled Keywords: | Anechoic Chamber, Metamaterial Absorber, Bandwidth Enhancement |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6592.O6 Optical radar T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electromagnetic Devices T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Achmad Fauzi Insani |
| Date Deposited: | 01 Jul 2021 05:55 |
| Last Modified: | 01 Jul 2021 05:55 |
| URI: | http://repository.its.ac.id/id/eprint/60698 |
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