研究目的
Developing a miniaturized 28 GHz quartz waveguide band-pass filter using a double-folded structure for footprint reduction and maintaining low insertion loss.
研究成果
The developed double-folded quartz waveguide BPF significantly reduces the footprint while maintaining low insertion loss. The inductive coupling was found suitable for the main coupling path, and the design allows for further improvements in attenuation performance with a quasi-elliptic BPF configuration.
研究不足
The study focuses on a specific frequency (28 GHz) and material (quartz), which may limit its applicability to other frequencies or materials. The fabrication process, while detailed, may require specialized equipment.
1：Experimental Design and Method Selection:
The study involved designing a double-folded quartz waveguide BPF using EM simulations to analyze electromagnetic coupling between resonators.
2：Sample Selection and Data Sources:
Quartz blocks were used to fabricate the filter, with specific dimensions and properties.
3：List of Experimental Equipment and Materials:
Quartz blocks, metal paste, and screen printing for coupling-windows.
4：Experimental Procedures and Operational Workflow:
The process included bonding quartz blocks, creating coupling-windows, and covering with metal paste.
5：Data Analysis Methods:
EM simulations using ANSYS HFSS were conducted to study coupling coefficients and resonance frequencies.
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