研究目的
To design a broadband and slant ±45? dual-polarized antenna element with compact structure for LTE700/CDMA800/GSM900 bands applications.
研究成果
The proposed antenna has a wide impedance bandwidth of 31.60% with VSWR < 1.6 from 698 to 960 MHz, high port-to-port isolation, and stable radiation pattern across the entire working band, making it suitable for 2G/3G/4G base station applications.
研究不足
The differences between simulation and test environment, and the discrepancies between simulation and measurement models may affect the accuracy of the results.
1：Experimental Design and Method Selection:
The antenna design includes two pairs of orthogonal dipoles, four couples of baluns, an octagonal pedestal, and two kinds of plastic fasteners. A square aluminum sheet is placed between adjacent dipoles to widen the impedance bandwidth.
2：Sample Selection and Data Sources:
A prototype of the proposed antenna element is fabricated and tested.
3：List of Experimental Equipment and Materials:
The antenna is made of aluminum and plastic fasteners made of polyoxymethylene.
4：Experimental Procedures and Operational Workflow:
The antenna is measured in an anechoic chamber to get its VSWR and port-to-port isolation, and the radiation pattern is measured by far-field test system.
5：Data Analysis Methods:
Simulated and measured results are compared to evaluate the antenna's performance.
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