研究目的
To design a dual-band and a triple-band BPF with improved isolation suitable for WLAN and WiMAX applications.
研究成果
The paper presents a simple and effective methodology to design single, dual and triple band BPFs with improved isolation between the adjacent passband frequencies. The integration of DGS and microstrip coupled lines successfully resulted in a triple band response with eminent insertion loss and isolation performances.
研究不足
The gap size (≤ 0.1 mm) is critical during fabrication process requiring high level of accuracy.
1：Experimental Design and Method Selection:
Utilized coupled microstrip line structures and a rectangular DGS fed with stepped microstrip lines to design the filters.
2：Sample Selection and Data Sources:
Designed and fabricated on Neltec NH9320 substrate with specific dielectric properties.
3：List of Experimental Equipment and Materials:
Neltec NH9320 substrate, microstrip lines, DGS elements.
4：Experimental Procedures and Operational Workflow:
Fabricated prototypes of proposed filters, measured and compared with simulated models.
5：Data Analysis Methods:
Analyzed S-parameters to validate filter performance.
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