Achmad Pandu Ayli, . (2026) DESAIN DAN FABRIKASI ANTENA ARRAY MIKROSTRIP BERBASIS SLOT DAN DEFECTED GROUND STRUCTURE UNTUK PARAMETER LORA 902-928 MHZ. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
The need for long-range, low power communication drives the use of the LoRa protocol (902–928 MHz) to expand telecommunication infrastructure in Indonesia. This study designs, simulates, and fabricates a slot based microstrip array antenna with a Defected Ground Structure (DGS) on an FR-4 substrate (εr = 4.27; h = 1.6 mm) to meet LoRa operating parameters. The slot, array, and DGS methods were applied incrementally using CST Microwave Studio and validated through Vector Network Analyzer (VNA) measurements. The final configuration (Slot + Array + DGS) achieved, in simulation, a return loss of −30.47 dB, VSWR of 1.063, realized gain of 2.865 dBi, and bandwidth of 26 MHz at 916 MHz. The fabricated antenna achieved a return loss of −25.95 dB, VSWR of 1.103, and bandwidth of 20.8 MHz, resonating at 932.8 MHz a +1.83% shift from simulation caused by PCB fabrication tolerances and substrate permittivity variation. The fabricated antenna remains functional within the 921–928 MHz band with a directional radiation pattern, making it a viable candidate for LoRa based communication systems.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No.Panggil: 2210314039] [Pembimbing: Ayu Mika Sherila] [Penguji 1: Achmad Zuchriadi] [Penguji 2: Fajar Rahayu] |
| Uncontrolled Keywords: | Array, Defected Ground Structure, LoRa, Microstrip Antenna, Slot |
| Subjects: | Q Science > Q Science (General) Q Science > QA Mathematics > QA76 Computer software T Technology > T Technology (General) |
| Divisions: | Fakultas Teknik > Program Studi Teknik Elektro (S1) |
| Depositing User: | ACHMAD PANDU AYLI |
| Date Deposited: | 31 Aug 2026 09:08 |
| Last Modified: | 31 Aug 2026 09:08 |
| URI: | http://repository.upnvj.ac.id/id/eprint/53311 |
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