On the Techniques to Design 3D-Printable Arbitrarily Height-Modulated Substrate Integrated Waveguide Filters

A novel modelling technique to design microwave 3D-printable filters based on arbitrarily height-modulated sub- strate integrated waveguides (SIW) is presented in this paper. In the literature, different topologies have been already employed to design filters based on SIW. Nevertheless, none of these solutions have analyzed the behavior of the modulation of the height of the filters. This is due to the difficulty of manufacturing the prototypes with conventional procedures. In this paper, the techniques to design and manufacture these filters, provided with microstrip transitions for their validation, are presented.

[1]  Maurizio Bozzi,et al.  Half-mode versus folded SIW filters: Modeling and design , 2015, 2015 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO).

[2]  Noureddine Boulejfen,et al.  Characteristic impedance and propagation constant assessment of Substrate Integrated Waveguide transmission line , 2016, 2016 11th International Design & Test Symposium (IDT).

[3]  Wen Wu,et al.  Miniaturized Dual-Band SIW Filters Using E-Shaped Slotlines With Controllable Center Frequencies , 2018, IEEE Microwave and Wireless Components Letters.