Telefonaktiebolaget LM Ericsson (publ)
Waveguide Interface and Non-Galvanic Waveguide Transition for Microcircuits

Abstract:

The present invention relates to a metalized waveguide interface (1) for providing a galvanically isolated waveguide connection for a propagating signal, between a standardized waveguide (2) and a, to the standardized waveguide non-compatible, metalized chip-level waveguide (3). The metalized waveguide interface (1) is configured such that a first open-ended quarter wavelength waveguide (31) and a second open-ended quarter wavelength waveguide (32) is obtained along the directions d1 and d2, respectively, when the metalized chip-level waveguide (3) is mounted on the support surface (5). The interface is further configured such that third open-ended quarter wavelength waveguide (33) is obtained between the third surface portion (9) and the metalized chip-level waveguide (3) when the metalized chip-level waveguide (3) is mounted on the support surface (5). The interface (1) further comprises a trench such that a short-circuit half wavelength waveguide (34) is obtained when the metalized chip-level waveguide (3) is mounted on the support surface (5).