研究目的
To design a wideband millimeter-wave antenna with stable directional radiation characteristics using cavity and slot coupling techniques.
研究成果
The proposed wideband millimeter-wave antenna achieves a bandwidth of 46.2% (33.8-54.1GHz) with good directional radiation characteristics, making it suitable for mm-wave radar systems and other wireless communication applications.
研究不足
The radiation patterns of the proposed antenna are distorted at higher operating frequencies due to the asymmetry of the antenna.
1：Experimental Design and Method Selection:
The antenna design utilizes a CPW-feed structure with a circular patch and a C-shaped patch connected via an arc slot for slot coupling feeding. A copper cavity-backed structure is used for stable directional radiation.
2：Sample Selection and Data Sources:
The antenna is printed on a 0.254mm thick RT/Duroid 5880 substrate.
3：254mm thick RT/Duroid 5880 substrate.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: RT/Duroid 5880 substrate, copper for cavity-backed structure.
4：Experimental Procedures and Operational Workflow:
The antenna's performance is simulated and optimized using HFSS (High Frequency Structure Simulator).
5：Data Analysis Methods:
The reflection coefficients (S11), voltage standing wave ratio (VSWR), and radiation patterns are analyzed to evaluate the antenna's performance.
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