Dept. of Electr. Eng., National Taiwan Univ.T.-H. YangC.-F. ChenT.-Y. HuangC.-L. WangRUEY-BEEI WU2018-09-102018-09-102005-12http://scholars.lib.ntu.edu.tw/handle/123456789/317580https://www.scopus.com/inward/record.uri?eid=2-s2.0-33847132339&doi=10.1109%2fAPMC.2005.1606294&partnerID=40&md5=a538c0175adc30aaa9a868af706881f2The paper presents an open-circuited type transition between microstrip line and substrate integrated waveguide (SIW) fabricated on a low temperature co-fire ceramic (LTCC) substrate. The energy is coupled to the waveguide through a via probe from the feeding microstrip line. The stripline pad to the via probe is introduced to improve the transition performance. The structure height of 176 μm which equals 0.073 guided wavelength is very short in microwave system. One single LTCC transition exhibits 10% bandwidth (58-64GHz in the center frequency 60.5GHz) for -15dB return loss and 2dB insertion loss in the center frequency. © 2005 IEEE.application/pdf310761 bytesapplication/pdfLTCC; Microstrip line; SIW; Waveguide transitionBandwidth; Ceramic materials; Low temperature operations; Microstrip lines; Microwave devices; Natural frequencies; LTCC; SIW; Substrate integrated waveguides; Waveguide transition; Waveguidesconference paper10.1109/APMC.2005.16062942-s2.0-33847132339