研究目的
To propose a filtering mm-wave antenna array for future 5G mobile devices that integrates a bandpass planar coupled-line filter with a slot antenna to cover the frequency range from 29.8 to 32.55 GHz.
研究成果
The proposed filtering antenna element, combined into an 8-element linear array on the top short edge of a typical mobile phone ground plane, demonstrates coverage performance comparable to existing 5G mobile array designs. The integration of the filter and antenna provides a solution for 5G mm-wave applications.
研究不足
The proposed array has low gain in the middle of the total scan pattern, which could be improved by placing an additional phased array on the bottom location of the ground plane.
1:Experimental Design and Method Selection:
The design is based on a fourth-order coupled line planar filter with a metal lid to increase filter sharpness and decrease loss. The lid is modified to form a slot antenna.
2:Sample Selection and Data Sources:
The filter is built on Rogers RO4350B substrate.
3:List of Experimental Equipment and Materials:
Rogers RO4350B substrate, metal lid.
4:Experimental Procedures and Operational Workflow:
The filter is simulated with time domain solver in CST Microwave Studio. The antenna's performance is evaluated through reflection coefficient and radiation pattern measurements.
5:Data Analysis Methods:
The s-parameters of the proposed filter are analyzed, and the antenna's performance is characterized by means of total scan pattern and coverage efficiency.
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