SARIF, HIDAYATULLAH (2025) PENINGKATAN BANDWIDTH ANTENA MIKROSTRIP MENGGUNAKAN METODE BELEVED HALF CUT UNTUK KOMUNIKASI NIRKABEL. S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.

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Abstract

The advancement of wireless communication technology has increased the demand for antennas that are efficient, lightweight, and capable of operating optimally within specific frequency bands with wide bandwidth. This research aims to design and simulate microstrip antennas with four different patch shapes—rectangular, circular, pentagonal, and hexagonal—by employing the beveled half-cut optimization method to enhance bandwidth performance. The substrate material used is FR-4, with copper-based patch and ground layers. Simulation results show that the rectangular patch design achieves a bandwidth of 4691 MHz with a return loss of -39.009 dB. The circular design exhibits a dual-band characteristic with bandwidths of 2493 MHz and 3174 MHz, and a return loss of -36.338 dB. The pentagonal design produces a bandwidth of 13,382 MHz and a return loss of -43.45 dB, while the hexagonal design yields a bandwidth of 5199 MHz and a return loss of -22.328 dB. Overall, the beveled half-cut optimization method has proven effective in improving the bandwidth performance of microstrip antennas, with the pentagonal design demonstrating the best transmission performance and sufficient bandwidth enhancement to support various modern wireless communication applications.

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