TY - GEN
T1 - A metal 3D-printed T-junction OMT with an offset stepped post
AU - Yukawa, Hidenori
AU - Ushijima, Yu
AU - Abe, Motomi
AU - Yoneda, Naofumi
AU - Miyazaki, Moriyasu
N1 - Publisher Copyright:
© 2017 EuMA.
PY - 2017/12/19
Y1 - 2017/12/19
N2 - We propose a T-junction OMT consists of an offset stepped post. The offset stepped post contributes to the matching of two rectangular ports at the short circuit situated at opposed side walls. The structure without conventional ridges is simple and makes it possible to achieve robust performances. We fabricated a proposed T-junction OMT in a single piece of an aluminum alloy, using a commercial metal 3D-printer. The proposed simple and compact structure with robust performances is considered to overcome disadvantage of 3D-printer, such as fabrication tolerance and surface roughness. The measured results demonstrated a return loss of 22dB and a loss of 0.3dB with a bandwidth of 8% in the K-band.
AB - We propose a T-junction OMT consists of an offset stepped post. The offset stepped post contributes to the matching of two rectangular ports at the short circuit situated at opposed side walls. The structure without conventional ridges is simple and makes it possible to achieve robust performances. We fabricated a proposed T-junction OMT in a single piece of an aluminum alloy, using a commercial metal 3D-printer. The proposed simple and compact structure with robust performances is considered to overcome disadvantage of 3D-printer, such as fabrication tolerance and surface roughness. The measured results demonstrated a return loss of 22dB and a loss of 0.3dB with a bandwidth of 8% in the K-band.
KW - 3D-printer
KW - antenna feed
KW - orthomode transducer
KW - waveguide
UR - http://www.scopus.com/inward/record.url?scp=85046697284&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046697284&partnerID=8YFLogxK
U2 - 10.23919/EuMC.2017.8230885
DO - 10.23919/EuMC.2017.8230885
M3 - Conference contribution
AN - SCOPUS:85046697284
T3 - European Microwave Week 2017: "A Prime Year for a Prime Event", EuMW 2017 - Conference Proceedings; 47th European Microwave Conference, EuMC 2017
SP - 444
EP - 447
BT - European Microwave Week 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 47th European Microwave Conference, EuMC 2017
Y2 - 10 October 2017 through 12 October 2017
ER -