Perancangan Antena Monopole Planar dengan Metamaterial untuk Peningkatan Bandwidth
Keywords:
monopole planar, Antena UWB, Struktur EBG, Peningkatan Lebar PitaAbstract
Perkembangan teknologi sangatlah pesat sehingga komunikasi wireless menjadi salahsatu kebutuhan dalam kehidupan sehari-hari mulai dari hal kecil seperti penggunaan remote control hingga aplikasi medis. Antena yang sangat popular untuk komunikasi wireless adalah antena microstrip karena pabrikasinya yang mudah dan harganya cukup terjangkau, tetapi antenamicrostrip sendiri memiliki beberapa kekurangan salah satunya adalah bandwidth yang kecil sehingga tidak dapat bekerja pada banyak frekuensi. Antena monopole planar merupakan salah satu solusi dari rendahnya bandwidth pada antena microstrip dengan struktur yang sederhana sehingga mudah dipabrikasi dengan harga yang
terjangkau. Agar antena dapat bekerja pada frekuensi 3,1-10,6 GHz(ultra-wideband), maka antenna dapat ditambahkan metamaterial. Selainuntuk memperbesar bandwidth, metamaterial juga memiliki keuntungan seperti biaya pabrikasi yang rendah serta dapat menjadi salah satu metode miniaturisasi.Dalam penelitian ini, dirancang antena monopole dengan patch heksagonal dengan penambahan metamaterial yaitu Electromagnetic Band Gap (EBG) berbentuk heksagonal untuk meningkatkan bandwidth antena.Rentang minimal frekuensi kerja antenna adalah 3,1 – 10,6 GHz (ultra-wideband) dengan bahansusbtrat yaitu FR4 serta bahan untuk patch dan groundplane adalah copper. Bandwidth antena sebelum ditambahkan struktur EBG yaitu sebesar 14,0324 GHz dan setelah ditambahkan strukturEBG menjadi 15,0324 GHz.
The development of technology is very rapid so that wireless communication has become one of the necessities in everyday life, ranging from small things such as the use of remotecontrol to medical applications. Antennas, that are very popular for wireless communication, aremicrostrip antennas because they are easy to manufacture, and the price is quite affordable. However, the microstrip antenna itself has several drawbacks. One of which is a small bandwidthso that it cannot work on many frequencies. Planar monopole antenna is one solution to the lowbandwidth of microstrip antennas with a simple structure that makes it easy to manufacture at anaffordable price. In order for the antenna to work at a frequency of 3.1-10.6 GHz (ultra- wideband), metamaterials can be added to the antenna. In addition to increasing bandwidth, metamaterials also have advantages such as low manufacturing costs and can be a method of miniaturization. In this study, a monopole antenna with a hexagonal patch was designed with theaddition of a metamaterial, namely Electromagnetic Band Gap (EBG) in a hexagonal shape to increase the bandwidth of the antenna. The minimum working frequency range of the antenna is 3.1 – 10.6 GHz (ultra-wideband¬) with the substrate material namely FR-4 and the material forthe patch and groundplane is copper. The bandwidth of the antenna before adding the EBG structure is 14.0324 GHz and after adding the EBG structure it becomes 15.0324 GHz
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References
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