Tuning Patch AntennaS Resonance Using Sustainable Natural Fiber CompositeS
DOI:
https://doi.org/10.59743/jbs.v38i4.340Keywords:
oil palm fiber (OPEFB), polymer lactic acid (PLA), patch antenna, permittivity, ComsolAbstract
This study presents extensive research on the use of biocomposites composed of Oil Palm Empty Fruit Bunch (OPEFB) fibers and Polylactic Acid (PLA) polymer as flexible, low-cost substrates for microstrip patch antenna applications. Composite samples were prepared with various weight fractions (0%, 40%, and 50% fiber content) to investigate the effect of fiber content on the resonant frequency and electromagnetic properties. Square patch antennas with dimensions of 8×8 cm and a feedline were fabricated. Experimental measurements were conducted to obtain the Return Loss (RL) of the antennas using a Vector Network Analyzer within the frequency range of 1 to 4 GHz. The obtained return loss values were -6.206 dB, -11.488 dB, and -14.946 dB, corresponding to resonant frequencies of 2.2 GHz, 2.14 GHz, and 2.08 GHz, respectively. COMSOL Multiphysics software was utilized to perform numerical simulations based on the calculated dielectric permittivity values to verify the accuracy of the electromagnetic modeling and its consistency with experimental results. The analysis results showed excellent agreement between the measured and simulated data, confirming the effectiveness of using the OPEFB/PLA composite as a promising material for designing low-cost and eco-friendly antenna substrates.
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