研究目的
Investigating the design and performance of a compact planar dielectric resonator antenna (DRA) based on substrate integrated waveguide (SIW) technology for 60 GHz communications, focusing on achieving circular polarization (CP) and enhancing bandwidth and gain through sequential feeding techniques.
研究成果
The proposed CP SIW DRA antenna demonstrates effective performance for 60 GHz communications, with enhancements in gain and CP bandwidth achieved through sequential feeding techniques in array configurations. The ridge-gap waveguide technology effectively suppresses surface waves, contributing to improved radiation characteristics.
研究不足
The study focuses on simulation results without experimental validation. The CP bandwidth for the single element is relatively narrow (0.22 GHz), though it is improved with array configurations.
1：Experimental Design and Method Selection:
The study employs SIW technology and ridge-gap waveguide (RGW) feeding to design a CP DRA antenna. The design includes a multilayered dielectric substrate with a dog-bone shaped DRA formed by perforating the upper substrate with air holes.
2：Sample Selection and Data Sources:
The antenna's performance is evaluated through full-wave simulation based on the finite integral technique (FIT) and compared with the finite element method (FEM).
3：List of Experimental Equipment and Materials:
The design utilizes a multilayer dielectric substrate, metallic sheets, and microstrip transmission lines.
4：Experimental Procedures and Operational Workflow:
The DRA is fed through a slot coupled microstrip transmission line, with RGW technology used to suppress surface waves. The design includes single element, 2 × 1, and 2 × 2 array configurations.
5：Data Analysis Methods:
The study analyzes impedance bandwidth, peak gain, and CP bandwidth through simulation results.
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