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A combined electric/magnetic field surface volume integral equation approach for the fast characterization of microstrip/substrate integrated waveguide structures

: Vaupel, T.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Antennas and Propagation Society:
International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications, iWAT 2017 : 1-3 March 2017 in Athens, Greece
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5090-5177-9
ISBN: 978-1-5090-5178-6
International Workshop on Antenna Technology (iWAT) <2017, Athens>
Fraunhofer FHR ()

In this contribution, a combined electric field/magnetic field surface/volume integral equation approach is presented with special features for the characterization of substrate integrated waveguide (SIW) components. Due to the use of a parallel plate waveguide Green's function, only a small number of volume current basis functions are necessary to model the SIWs. The focal point is set on the specification of microstrip line-SIW transitions using a via and a pad/antipad configuration for the coupling between the microstrip parts and the SIW. An effective S-parameter extraction is used with both microstrip- and special SIW-waveguide ports. The main goal comprises the design of cheap broadband transitions to SIWs with a thick substrate suited for the feeding of a new class of compact endfire SIW-antennas.