Research Article
Dual-Band Circular Microstrip Patch Antenna Based on Reactively Loaded Dual Frequency Technique And DGS for RFID Reader
@INPROCEEDINGS{10.4108/eai.11-7-2019.2297771, author={Nanang Ismail and Elita Wijayanti and Folin Oktafiani and Abdul Latip}, title={Dual-Band Circular Microstrip Patch Antenna Based on Reactively Loaded Dual Frequency Technique And DGS for RFID Reader}, proceedings={Proceedings of the 1st International Conference on Islam, Science and Technology, ICONISTECH 2019, 11-12 July 2019, Bandung, Indonesia.}, publisher={EAI}, proceedings_a={ICONISTECH}, year={2021}, month={1}, keywords={microstrip antenna dual-band patch circular reactively loaded dual frequency dgs rfid}, doi={10.4108/eai.11-7-2019.2297771} }- Nanang Ismail
Elita Wijayanti
Folin Oktafiani
Abdul Latip
Year: 2021
Dual-Band Circular Microstrip Patch Antenna Based on Reactively Loaded Dual Frequency Technique And DGS for RFID Reader
ICONISTECH
EAI
DOI: 10.4108/eai.11-7-2019.2297771
Abstract
One of the superior wireless technologies in the identification of various objects that are efficient, fast, cheap, and effective, especially in the field of logistics, namely technology of Radio Frequency Identification (RFID). Differences in the working frequency of RFID technology used for logistics needs can be overcome by designing a reader antenna that has two working frequencies (dual-band). This paper proposes a dual-band microstrip antenna design with patch circular for RFID readers. Besides, the antenna is also designed with the addition of the Defected Ground Structure (DGS) in the form of a rectangular slot to improve the S-parameters. The antenna is realized using a substrate made from FR-4 with a thickness of 1.6mm, the dielectric constant is 4.3, and uses a coaxial probe type. The measurement results prove that the microstrip antenna is capable of producing two working frequencies namely 2.48 GHz and 5.768 GHz which are by following the standards of ISO 18000-4 and ISO 18000-5. At a frequency of 2.48 GHz, the values of S11 is -11.453 dB, VSWR 1.741, and bidirectional radiation patterns were obtained. At a frequency of 5.768 GHz, values of S11 is -11,490 dB, VSWR 1,728 and bidirectional radiation patterns were obtained. VSWR resulting from the measurement shows the results that meet the mirostrip antenna criteria, which is ≤ 2. The S11 produced is in accordance with the specifications, with a value of ≤ -10 dB.