Ka-Band Branch Line Coupler Applied Hexagonal Waveguide Suitable for Additive Manufacturing

Motomi ABE  Hidenori YUKAWA  Yu USHIJIMA  Takuma NISHIMURA  Takeshi OSHIMA  Takeshi YUASA  Naofumi YONEDA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E101-C   No.10   pp.805-814
Publication Date: 2018/10/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E101.C.805
Type of Manuscript: PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
3D printer,  additive manufacturing,  direct metal laser sintering,  hexagonal waveguide,  branch line coupler,  

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Summary: 
A hexagonal waveguide branch line coupler suitable for additive manufacturing is proposed in this study, and its design method is elucidated. The additive manufactured Ka-band coupler exhibits characteristics similar to those of a machined coupler, but its weight and cost are reduced by 40% and 60%, respectively. Its effectiveness is also confirmed in this study.