Title: A Broadband Low-Loss WR10 Waveguide to Microstrip Line Transition with T-Shaped Probe.
Authors: Hamberger, Gerhard F.; Siart, Uwe; Eibert, Thomas F.
Abstract: A novel W-band WR10 waveguide to microstrip line transition is designed, simulated in a 3D full-wave EM simulation software, fabricated, and evaluated by measurements. The main advantages of this transition are frequency-flat transmission, low reflection, and uncomplicated fabrication. Simulation shows a reflection coefficient of better than -23 dB from 75 to 90 GHz for one hollow waveguide to microstrip line transition. The port reflections increase for a fabricted prototype with two transitions and a connecting microstrip line to a level of about -14 dB. This is mainly caused by fabrication tolerances. The overall transmission of the dual transition prototype is found at a very satisfactory level of about -4.8 dB at 90GHz for a connecting microstrip line with a length of 45mm corresponding to an estimated loss of approximately 0.6 dB for a single transition.
Subjects: MICROSTRIP transmission lines; WAVEGUIDES; ELECTROMAGNETIC fields
Publication: Progress in Electromagnetics Research Letters, 2018, Vol 73, p17
ISSN: 1937-6480
Publication type: Academic Journal
DOI: 10.2528/pierl17081109

A Broadband Low-Loss WR10 Waveguide to Microstrip Line Transition with T-Shaped Probe.

Hamberger, Gerhard F.; Siart, Uwe; Eibert, Thomas F.