研究目的
To design a pentaband direct fed circular patch antenna with ring fractals for WLANs and WiMAX applications, enhancing the bandwidth of the patch antenna.
研究成果
The proposed pentaband antenna operates over frequencies ranging from 1.5 to 6 GHz with various broad bands, suitable for DCS1800, CDMA, LTE, Bluetooth, WLAN, WiMAX, and satellite navigation systems. The design demonstrates good performance with omnidirectional characteristics in gain.
研究不足
The thickness of the substrate must be carefully selected to avoid surface-wave excitation, and the design may require optimization for specific applications beyond the tested frequency ranges.
1：Experimental Design and Method Selection:
The design and analysis of the proposed antenna are done using Ansoft HFSS, implementing fractals to enhance bandwidth.
2：Sample Selection and Data Sources:
The antenna is designed on FR4 epoxy material with specific dielectric constant and loss tangent.
3：List of Experimental Equipment and Materials:
Ansoft HFSS software, FR4 epoxy substrate.
4：Experimental Procedures and Operational Workflow:
The antenna design involves four iterations on the circular patch, with modifications in the radiating patch to implement ring fractals.
5：Data Analysis Methods:
Simulated return loss, VSWR, 3D gain polar plot, and radiation characteristics are analyzed.
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