研究目的
To design a dual-band microstrip quasi-Yagi antenna for free band and 5G mobile communication, specifically for use in drone networks as mobile base stations during emergencies or disasters to provide telecommunication services.
研究成果
The designed dual-band microstrip quasi-Yagi antenna successfully operates at 2.3-2.4 GHz and 3.4-3.8 GHz bands with required radiation characteristics: omni-directional pattern for the lower band and directional pattern with higher gain for the upper band. It meets the specifications for drone-based mobile base stations in emergency scenarios, with simulations and measurements showing good agreement. Improvements in bandwidth and gain were achieved compared to similar designs.
研究不足
The antenna has a narrow bandwidth for the lower frequency band (2.3-2.4 GHz) and may be sensitive to production and calibration errors, as indicated by minor differences between simulation and measurement results. Future work includes improving gain and coverage through array designs.
1：Experimental Design and Method Selection:
The study involves designing a dual-band antenna with a loop for lower frequency (2.3-2.4 GHz) and a dipole for higher frequency (3.4-3.8 GHz), using electromagnetic simulations and experimental measurements. Theoretical models include equations for loop circumference and dipole length based on guided wavelengths.
2：3-4 GHz) and a dipole for higher frequency (4-8 GHz), using electromagnetic simulations and experimental measurements. Theoretical models include equations for loop circumference and dipole length based on guided wavelengths.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: A prototype antenna is fabricated on an FR-4 substrate for testing.
3：List of Experimental Equipment and Materials:
FR-4 substrate with 1.6 mm thickness, fabrication tools for the antenna prototype, anechoic chamber for radiation pattern measurements, and simulation software (HFSS).
4：6 mm thickness, fabrication tools for the antenna prototype, anechoic chamber for radiation pattern measurements, and simulation software (HFSS).
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The antenna is designed, simulated using HFSS, fabricated, and then measured in an anechoic chamber to obtain S11 parameters and radiation patterns. Current distributions are analyzed at different frequencies.
5：Data Analysis Methods:
Simulation and measurement results are compared for S11, bandwidth, gain, and radiation patterns using standard electromagnetic analysis techniques.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
