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