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Femtosecond laser-assisted fabrication of microstrip patch antenna

Title
Femtosecond laser-assisted fabrication of microstrip patch antenna
Authors
Jung, Young-JunChoi, Hun-KookYu, Bong AhnKim, JongyeolLee, Cherl HeeAhsan, Md ShamimSohn, Ik-Bu
Issue Date
2020-09
Citation
Optical Engineering, 59(9), 096103
Type
Article
Article Type
Article
Author Keywords
far-field radiation patternfemtosecond lasermicrostrip antennaphotolithographyreturn lossultraviolet exposure
Keywords
Structural optimizationChemical treatmentsFar field radiation patternsHigh-frequency structure simulatorsLaser-based techniquesMicro-strip patch antennasPhysical parametersPrecise fabricationsUltraviolet beamsMicrostrip antennasDirectional patterns (antenna)FabricationFemtosecond lasersMicrowave antennasNatural frequenciesSlot antennas
ISSN
0091-3286
Abstract
We demonstrate a technique for fabricating microstrip patch antennas using femtosecond laser patterning followed by ultraviolet beam and chemical treatment. Initially, we design the physical parameters of both single-slot and double-slot microstrip patch antennas and simulate them using high-frequency structure simulator for optimization. Simulation results exhibit a return loss of -26 dB at the resonant frequency of 22.9 gigahertz (GHz) for single-slot microstrip patch antenna and -18.3 dB at 24.03 GHz for double-slot microstrip patch antenna. The three-dimensional polar plot and far-field radiation pattern of the microstrip patch antennas confirm excellent directivity of the antennas. Furthermore, we investigate the return loss of the fabricated microstrip patch antennas. For single-slot microstrip patch antenna, experimental result shows a return loss of -21.25 dB at 22.7 GHz. In contrast, double-slot microstrip patch antenna shows a return loss of -27 dB at 24.1 GHz. In addition, we compare the performance of the double-slot microstrip patch antenna fabricated using femtosecond laser-assisted technique and photolithographic technique and find better performance in the femtosecond laser-fabricated microstrip antenna. The proposed femtosecond laser-based technique is simple and shows promises in precise fabrication of high-quality microstrip antennas. © 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
URI
http://hdl.handle.net/20.500.11750/12832
DOI
10.1117/1.OE.59.9.096103
Publisher
SPIE - International Society for Optical Engineering
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


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