研究目的
Investigating the design and performance of a novel diplexer based on surface plasmon polariton-like propagation in substrate integrated waveguide for microwave applications.
研究成果
The proposed microwave diplexer employing SPP-like propagation based on structural dispersion of SIW meets the requirements for high-performance and low-cost configuration. Future work includes fabrication and measurement of the proposed structure.
研究不足
The study is based on simulations without physical fabrication and measurement, which are planned for future work.
1：Experimental Design and Method Selection:
The diplexer design is based on the structural dispersion of substrate integrated waveguide (SIW) to achieve SPP-like propagation. Two two-layer SIW filters are designed with layers having effective permittivities of opposite signs in certain frequency ranges.
2：Sample Selection and Data Sources:
The design utilizes Rogers RT 5800 and TMM 10 dielectric materials for the SIW filters.
3：List of Experimental Equipment and Materials:
CST software package for simulation and optimization of the diplexer dimensions.
4：Experimental Procedures and Operational Workflow:
The filters are fed by tapered microstrip lines, optimized for impedance matching, and incorporated into the diplexer with a Wilkinson power divider.
5：Data Analysis Methods:
Simulation of the diplexer's S parameters to evaluate its performance.
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