研究目的
To present a broadband eight-way substrate integrated waveguide (SIW) radial power divider/combiner with high-isolation, utilizing step probes for broadband impedance matching and a star structure based on microstrip circuit to improve isolation performance.
研究成果
The presented eight-way SIW radial power divider/combiner achieves wider bandwidth, lower return loss and insertion loss, and higher isolation between the outputs compared to existing designs. The use of step probes and a microstrip isolation circuit effectively improves performance.
研究不足
The study focuses on an eight-way SIW radial power divider/combiner, which may not be directly applicable to other configurations or numbers of ways without further research.
1：Experimental Design and Method Selection:
The design involves a two-layer SIW radial power divider/combiner with step probes and a microstrip isolation circuit.
2：Sample Selection and Data Sources:
The SIW cavity is based on Rogers 5870 substrate, and the isolation microstrip circuit is based on Arlon AD300C substrate.
3：List of Experimental Equipment and Materials:
Substrates (Rogers 5870 and Arlon AD300C), resistors (0402 package), and slotted SMA connectors.
4：Experimental Procedures and Operational Workflow:
The power divider/combiner was designed, optimized, fabricated, and measured. Ansoft HFSS was used for optimization.
5：Data Analysis Methods:
Simulated and measured results were compared for return loss, insertion loss, phase balance, and isolation performance.
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