研究目的
To evaluate the beam-scanning capability and coverage performance of array antennas implemented in 5G user equipment, especially when multi-subarray configurations are introduced under the influence of housing.
研究成果
The effective beam-scanning efficiency is a useful performance indicator for the evaluation of the coverage performance of subarrays in 5G user equipment. The parametric study shows that the existence of the superstrate has notable effects on the mmWave array performance, and lower permittivity and thinner material is preferable for the casing of mobile terminals to achieve better coverage performance.
研究不足
The study focuses on a specific configuration of a 4×1 patch array and does not extensively cover other possible array configurations or the effects of other housing materials beyond the superstrate.
1：Experimental Design and Method Selection:
The study generalizes the notion of the coverage efficiency and introduces the effective beam-scanning efficiency to evaluate the coverage performance of a subarray covered by a superstrate.
2：Sample Selection and Data Sources:
A simple 4×1 patch array is used as an example to demonstrate the notion of the effective beam-scanning efficiency.
3：List of Experimental Equipment and Materials:
The patch array is printed on a Rogers RO4003 substrate with specific relative permittivity and thickness, covered by a superstrate with varying relative permittivity and thickness, and an air gap is inserted between the antennas and the superstrate.
4：Experimental Procedures and Operational Workflow:
The study involves parametric analysis of the effective beam-scanning efficiency for different thicknesses of the air gap, superstrate, and different permittivity of the superstrate.
5：Data Analysis Methods:
The results are analyzed in terms of the effective beam-scanning efficiency to evaluate the coverage performance of subarrays.
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