Modeling a Ka-Band Resonator Cavity with SIW 3-D Technology

The compact size of two-port substrate integrate waveguide three-dimensional (SIW 3-D) cavity resonator designed with a half mode (HM) for Ku-band application have been simulated. The microwave circuits we find the resonator, filter, antenna, and coupler the can be designed by using SIW techniques. firstly started to model a new circuit structure such as the 3-D resonator cavity. The electromagnetic simulation with the CST-studio software shows a 28.9 GHz resonance frequency. Furthermore, the modulation resulted in lowering the cost and the miniaturization of the dimension of the circuit by 75% cut Finally, the variation of the substrate's nature at the level of folding which is characterized by a permittivity εr different from that of the circuit substrate, after obtaining the different results, the conclude that the lower the dielectric permittivity (εr) is, the higher S11 and S12 (the reflection and transmission coefficient respectively) value is.

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