3D打印可变孔径喇叭与模块化脊

IF 1.1 Q3 PHYSICS, MULTIDISCIPLINARY
I. Goode, C. Saavedra
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引用次数: 0

摘要

3D打印技术在电磁波传播和散射领域具有使学生实验室体验现代化的巨大潜力。在这一贡献中,提出了一种快速、低成本的方法来3D打印和金属化可变孔径喇叭和波导发射器。发射器将SubMiniature版本a(SMA)同轴连接器转换为WR 187波导(3.95 GHz至5.85 GHz的标准尺寸波导),并用塑料印刷,同时用铝带进行金属化。该发射器提供了与现成发射器类似的性能,成本为其40分之一。作为该发射器的可教扩展,可变孔径喇叭是3D打印的,并用铝带进行金属化。喇叭的孔径面积通过旋转E而改变⃗ 通过在发射器和喇叭之间的过渡中使用枢轴使喇叭的壁彼此远离。随着孔径面积的增加,该喇叭显示出波束宽度的预期减小和峰值增益的增加,同时保持可用的阻抗匹配。模块化的中心脊也被打印出来,以证明中心脊在没有H的喇叭天线中的实用性⃗ 墙壁。总之,提出了一种模块化、廉价且易于构建的波导系统,该系统有助于教授电磁学,特别是孔径面积和天线增益之间的关系,并为波导实验提供平台。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
3D printed variable aperture horn with modular ridges
3D printing technology has significant potential to modernize the student laboratory experience in the area of electromagnetic wave propagation and scattering. In this contribution, a fast and low-cost method to 3D print and metallize a variable aperture horn and waveguide launcher are presented. The launcher converts a SubMiniature version A (SMA) coaxial connector to WR 187 waveguide (standard size of waveguide for 3.95 GHz to 5.85 GHz) and is printed from plastic while being metallized with aluminum tape. The launcher provided similar performance to an off the shelf launcher at one 40th the cost. As a teachable extension to this launcher a variable aperture horn is 3D printed and metallized with aluminum tape. The aperture area of the horn is changed by rotating the E⃗ walls of the horn away from each other by use of pivot in the transition between the launcher and the horn. This horn showed the expected decrease in beamwidth and increase in peak gain as the aperture area was increased while maintaining a usable impedance match. Modular center ridges were also printed to demonstrate the utility of center ridges in a horn antenna without H⃗ walls. Overall, a modular, inexpensive, and easy to construct waveguide system is presented that is useful for teaching electromagnetics specifically the relationship between aperture area and antenna gain, as well as providing a platform for waveguide experiments.
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来源期刊
Journal of Physics Communications
Journal of Physics Communications PHYSICS, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
0.00%
发文量
114
审稿时长
10 weeks
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