研究目的
Investigating the design and performance of a gap waveguide array antenna for 5G applications in mmWave frequencies.
研究成果
A linear array antenna with 8 elements has been designed based on the gap waveguide technology, suitable for 5G applications in the mmWave frequencies with the capability to scan the E-plane in the range of ±45?. The active reflection coefficient of the antenna in all scan angles and all frequencies is less than ?10 dB and gain is 23 dBi in broadside angle on average.
研究不足
The existence of grating lobes in array antennas when the array steers to the 45? scanning angle, which is at its highest level at 29.5 GHz.
1：Experimental Design and Method Selection:
The design started with the optimization of radiating slots and the gap waveguide line to achieve |S11| < ?10 dB in the frequency band from
2：11| < ?10 dB in the frequency band from 5 to 5 GHz. Each array element was designed to have minimum coupling to adjacent elements. Sample Selection and Data Sources:
26.5 to 29.5 GHz. Each array element was designed to have minimum coupling to adjacent elements. 2. Sample Selection and Data Sources: The antenna was simulated and optimized using the Computer Simulation Technology (CST).
3：List of Experimental Equipment and Materials:
A linear array antenna with 8 elements, each having 8 radiating slots and fed from the center.
4：Experimental Procedures and Operational Workflow:
The final structure of the array antenna was obtained by placing other array elements and forming the complete array antenna. The active reflection coefficients of the antenna elements were optimized to be lower than ?10 dB.
5：Data Analysis Methods:
The radiation pattern of the array antenna in the E-plane was analyzed for four different frequencies.
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