CST – Computer Simulation Technology

Microstrip-to-Substrate Integrated Waveguide Aperture Couplers
Vladimir A. Labay, T. Rama Rao
2nd International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology (Wireless VITAE), 2011
March 2011
1 - 4
Aperture coupling, directional couplers, microstrip circuits, substrate-integrated waveguide technology
Multi-aperture couplers between microstrip circuitry and substrate-integrated waveguides are presented. The design procedure is described, and couplers formed by single-aperture and dual-aperture configurations are presented. It is demonstrated that the coupling can be as tight as 1 dB but that weaker coupling leads to more broadband and flatter coupler performance. Designs are carried out in an HFSS environment; comparison with CST validate the design procedure. Dimensions and parameters of all couplers are presented as guidelines for general design purpose.

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