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.

中文翻译：

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飞秒激光辅助制作微带贴片天线

摘要。我们展示了一种使用飞秒激光图案化、紫外线束和化学处理来制造微带贴片天线的技术。最初，我们设计了单槽和双槽微带贴片天线的物理参数，并使用高频结构模拟器对其进行了仿真优化。仿真结果表明，单槽微带贴片天线在 22.9 GHz 谐振频率下的回波损耗为 -26 dB，双槽微带贴片天线在 24.03 GHz 谐振频率下的回波损耗为 -18.3 dB。微带贴片天线的三维极坐标图和远场辐射图证实了天线的出色方向性。此外，我们研究了制造的微带贴片天线的回波损耗。对于单槽微带贴片天线，实验结果显示在 22.7 GHz 时回波损耗为 -21.25 dB。相比之下，双槽微带贴片天线在 24.1 GHz 时的回波损耗为 -27 dB。此外，我们比较了使用飞秒激光辅助技术和光刻技术制造的双缝隙微带贴片天线的性能，发现飞秒激光制造的微带天线具有更好的性能。所提出的基于飞秒激光的技术很简单，并且在精确制造高质量微带天线方面显示出前景。我们比较了使用飞秒激光辅助技术和光刻技术制造的双槽微带贴片天线的性能，发现飞秒激光制造的微带天线具有更好的性能。所提出的基于飞秒激光的技术很简单，并且在精确制造高质量微带天线方面显示出前景。我们比较了使用飞秒激光辅助技术和光刻技术制造的双槽微带贴片天线的性能，发现飞秒激光制造的微带天线具有更好的性能。所提出的基于飞秒激光的技术很简单，并且在精确制造高质量微带天线方面显示出前景。