40 GHz Vertical Transition with a Dual‐Mode Cavity for a Low‐Temperature Co‐fired Ceramic Transceiver Module

• Published in: ETRI journal Vol. 32; no. 2; pp. 195 - 203
• Main Authors: Byun, Woo‐Jin, Kim, Bong‐Su, Kim, Kwang Seon, Eun, Ki‐Chan, Song, Myung‐Sun, Kulke, Reinhard, Kersten, Olaf, Möllenbeck, Gregor, Rittweger, Matthias
• Format: Journal Article
• Language: English
• Published: 한국전자통신연구원 01.04.2010
• Subjects: LTCC (low‐temperature co‐fired ceramic); millimeter wave; SIW (substrate integrated waveguide); transceiver module; waveguide transition; 전자/정보통신공학
• ISSN: 1225-6463; 2233-7326
• DOI: 10.4218/etrij.10.1409.0091

A new vertical transition between a substrate integrated waveguide in a low‐temperature co‐fired ceramic substrate and an air‐filled standard waveguide is proposed in this paper. A rectangular cavity resonator with closely spaced metallic vias is designed to connect the substrate integrated waveguide to the standard air‐filled waveguide. Physical characteristics of an air‐filled WR‐22 to WR‐22 transition are compared with those of the proposed transition. Simulation and experiment demonstrate that the proposed transition shows a −1.3 dB insertion loss and 6.2 GHz bandwidth with a 10 dB return loss for the back‐to‐back module. A 40 GHz low‐temperature co‐fired ceramic module with the proposed vertical transition is also implemented. The implemented module is very compact, measuring 57 mm × 28 mm × 3.3 mm.