Ridged Waveguide Magic Tees Based on 3-D Printing Technology

被引:13
|
作者
Wu, Jie [1 ]
Wang, Cong [1 ,2 ]
Guo, Yongxin [1 ]
机构
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
[2] Natl Univ Singapore, Ctr Adv Microelect Devices, Suzhou Res Inst, Suzhou 215123, Peoples R China
基金
美国国家科学基金会; 新加坡国家研究基金会;
关键词
Printing; Microwave theory and techniques; Power transmission lines; Impedance matching; Bandwidth; Fabrication; Couplings; High isolation; magic tee; ridged waveguide; 3-D printing; waveguide component; ANTENNAS; COMPACT;
D O I
10.1109/TMTT.2020.3006570
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
In this article, full-metal ridged waveguide magic tees are designed and fabricated based on 3-D printing technology. Two kinds of prototypes with different structures and performances are proposed and compared. First, a wideband design based on double-ridged waveguide (DRWG) transmission lines was proposed, and it achieved a measured operational bandwidth of 27%. However, this component has to be split into two parts that are printed separately and then assembled together by screws because the overhang structure cannot satisfy the 3-D printing rules. To overcome this problem, a novel magic tee based on pyramidal ridged waveguide (PRWG) is proposed. In spite of a narrower bandwidth of 8.6%, this design requires a simpler fabrication method and has a lower profile. To the best of our knowledge, the PRWG prototype is the first full-metal magic tee that is fabricated as a whole part without involving any assembling or tuning and, thus, saves processing time and manual work.
引用
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页码:4267 / 4275
页数:9
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