Multi-layered substrate integrated Waveguide (MSIW) Waffle-Iron Filters

dc.contributor.advisorMeyer, Petrieen_ZA
dc.contributor.authorMaas, Susanen_ZA
dc.contributor.otherStellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering.en_ZA
dc.descriptionThesis (PhD)--Stellenbosch University, 2019.en_ZA
dc.description.abstractENGLISH ABSTRACT: This dissertation will present the following two topics: (1) Implementation of a waffle-iron filter, utilising multi-layered substrate integrated waveguide (MSIW) technology and (2) Developing a new methodology for measuring scattering parameters of multimode waveguide filters. The classical image impedance synthesis method for waffle-iron filter design is used to develop two filters. Filter A is a classical MSIW Waffle-iron filter and filter B is an extended version with an extra step in the middle of the filter. This work proposes two methods in measuring a multimode waveguide filter; one utilising a set of measurements with different probe positions, and one using a radiating horn. The prototypes presented, displays less than -12 dB passband reflection over 8.5 to 10.5 GHz, with stopband attenuation in excess of 70 dB over the harmonic bands 15 to 43 GHz for filter A and 15 to 48 GHz for filter B. The prototypes were designed to handle 10 Watt average power in the transmitted band. A good correlation is found between synthesised and measured responses in these two designs.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: Raadpleeg teks vir opsommingaf_ZA
dc.format.extent112 pages : illustrationsen_ZA
dc.publisherStellenbosch : Stellenbosch Universityen_ZA
dc.subjectWave guidesen_ZA
dc.subjectWaffle irons -- Filtersen_ZA
dc.subjectSubstrate Integrateden_ZA
dc.titleMulti-layered substrate integrated Waveguide (MSIW) Waffle-Iron Filtersen_ZA
dc.rights.holderStellenbosch Universityen_ZA

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