Lightweight Perforated Waveguide Structure Realized by 3-D Printing for RF Applications

被引:51
作者
Huang, Guan-Long [1 ,2 ]
Zhou, Shi-Gang [2 ,3 ]
Sim, Chow-Yen-Desmond [4 ]
Chio, Tan-Huat [2 ]
Yuan, Tao [5 ]
机构
[1] Shenzhen Univ, Coll Informat Engn, ATR Natl Key Lab Def Technol, Shenzhen 518060, Peoples R China
[2] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore
[3] Northwestern Polytech Univ, Sch Elect & Informat, Xian 710072, Shaanxi, Peoples R China
[4] Feng Chia Univ, Dept Elect Engn, Taichung 40724, Taiwan
[5] Shenzhen Univ, Coll Informat Engn, Shenzhen 518060, Peoples R China
关键词
3-D printing; direct metal printing; horn antenna; lightweight; perforated waveguide; ANTENNA-ARRAY; FEED; BAND;
D O I
10.1109/TAP.2017.2715360
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Waveguide structures are criticized for their bulky geometry and heavy weight in practical applications. Therefore, it is necessary to investigate the weight-reduction technique of the waveguide structures, while maintaining their electrical properties and mechanical fabricability. In this paper, a waveguide perforation technique for lightweight purpose is proposed, and an X-band pyramidal horn antenna that employs this technique is developed and tested. To ease the manufacturing process of the 3-D thin-wall structure, a 3-D metal-direct-printing technology is utilized to fabricate the perforated horn. Meanwhile, a full-metal horn without any perforation and a horn printed in dielectric material but coated with metal are also included to compare with the proposed one. Experimental results show that around two-thirds of the total weight can be reduced. Other measured results in terms of electrical performance are in excellent agreement with the full-metal ones, validating the feasibility of the design and fabrication approach. The novelty of this paper realized by the 3-D printing technique is a promising strategy to inspire lightweight structure designs for radio frequency applications.
引用
收藏
页码:3897 / 3904
页数:8
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