研究目的
Investigating the bandwidth improvement of substrate integrated waveguide cavity-backed slot antenna with dielectric resonators for WLAN U-NII mid band applications.
研究成果
The study successfully demonstrates bandwidth enhancement of SIW based cavity-backed slot antennas using dielectric resonators of different shapes. The modified antennas show significant bandwidth improvement with minimal degradation in gain, making them suitable for WLAN applications.
研究不足
The study is limited to the WLAN U-NII mid band and the use of specific dielectric resonator shapes. The bandwidth enhancement is achieved at the expense of slight degradation in gain.
1：Experimental Design and Method Selection:
The study involves designing a SIW based circular-shaped cavity-backed antenna and modifying it with dielectric resonators of different shapes to enhance bandwidth. Theoretical models and simulation tools like ANSYS HFSS v15.0 are used for design and analysis.
2：0 are used for design and analysis.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: The antennas are fabricated using Arlon AD270 substrate material. Measurements are taken using Anritsu VNA and Hittite HMC-T2100 signal generator.
3：List of Experimental Equipment and Materials:
Arlon AD270 substrate, Emerson & Cuming make Eccostock HIK dielectric resonators, Anritsu VNA, Hittite HMC-T2100 signal generator, Krytar 9000B power meter.
4：Experimental Procedures and Operational Workflow:
The antenna is designed, simulated, and then fabricated. The return loss and radiation patterns are measured and compared with simulated results.
5：Data Analysis Methods:
The performance of the antennas is analyzed in terms of impedance bandwidth, gain, and radiation patterns using simulation and measurement data.
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