研究目的
Investigating the wideband operation of an offset-fed aperture coupled trapezoid shaped dielectric resonator antenna (DRA) and its potential for dual-polarized operation.
研究成果
A trapezoid shaped offset-fed aperture coupled dielectric resonator antenna is presented and investigated for wideband operation. The antenna achieves a wideband impedance bandwidth of 440 MHz centered at 2.45 GHz, with potential for dual-polarized and polarization reconfigurable operation.
研究不足
The offset-fed system exhibits a degradation in radiation performance and a slight tilt in the radiation pattern of the antenna in the E-plane, which may be acceptable depending on the application.
1：Experimental Design and Method Selection:
The study involves designing a square DRA and modifying it to a trapezoidal shape for wideband operation. An offset-feed system is then implemented for potential dual-polarized operation.
2：Sample Selection and Data Sources:
The study uses a square DRA with dimensions
3：8×8×10 mm3 and a trapezoidal DRA with specific dimensions for wideband operation. List of Experimental Equipment and Materials:
A 62 mil Rogers Duroid 5880 laminate is used for the design. The substrate acts as the ground plane.
4：Experimental Procedures and Operational Workflow:
The antenna is analyzed using Ansys HFSS. Parametric studies on the design parameters of the trapezoidal DRA are conducted.
5：Data Analysis Methods:
The antenna's performance is evaluated based on impedance bandwidth and radiation characteristics.
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