Title :
A broadband circular waveguide-to-microstrip transition for an 80 GHz FMCW radar system
Author :
Schulz, C. ; Pohl, N. ; Rolfes, I.
Author_Institution :
Lehrstuhl fur Hochfrequenzsysteme, Ruhr-Univ. Bochum, Bochum, Germany
Abstract :
A simple, easy to integrate, and broadband circular waveguide-to-microstrip transition is presented in this paper. The transition, consisting of two mechanical parts and a high frequency laminate, can be realized in a standard manufacturing process and is particularly suited for high frequency applications. The development of a transition for a center frequency of 80 GHz is presented, allowing a good return loss and insertion loss in a bandwidth of more than 15 GHz, i.e. 19 %. 3D-electromagnetic field simulations are used for optimization and are compared to measurements of a first prototype to confirm the results and the functionality of the transition.
Keywords :
CW radar; FM radar; circular waveguides; microstrip transitions; millimetre wave radar; waveguide transitions; 3D-electromagnetic field simulations; FMCW radar system; broadband circular waveguide-to-microstrip transition; frequency 80 GHz; high frequency applications; high frequency laminate; insertion loss; manufacturing process; mechanical parts; return loss; Bandwidth; Broadband communication; Microstrip; Optical waveguides; Radar; Waveguide transitions; 3D-electromagnetic field simulation; FMCW radar system; Millimeter-Wave; broadband transition; circular waveguide-to-microstrip transition;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
