研究目的
To design a new substrate integrated waveguide (SIW) based leaky wave antenna (LWA) for backward endfire (-900) radiation with high gain, low size, and simple planar structure suitable for various applications.
研究成果
The proposed SIW based LWA achieves high gain backward endfire radiation with a simple design structure, making it suitable for applications like UAVs, modern RADAR systems, and directional communication systems. The measured gain at backward endfire is 12.1 dBi.
研究不足
The paper focuses on backward endfire radiation and does not extensively discuss other radiation directions or the antenna's performance under varying environmental conditions.
1：Experimental Design and Method Selection
The design involves a combination of rotated transverse and longitudinal slots to achieve backward endfire to near broadside beam scanning. The unit cell is the basic building block of periodic SIW LWAs, repeated according to the needs of size and gain.
2：Sample Selection and Data Sources
A prototype is fabricated using Rogers RT/Duroid 5870 (tm) substrate with relative permittivity ?r = 2.33. The number of unit cells N = 19.
3：List of Experimental Equipment and Materials
Rogers RT/Duroid 5870 (tm) substrate, dimensions provided for the unit cell structure including WSIW = 14mm, via diameter = 1.2mm, via spacing = 1.6mm, L = 8mm, L1 = 1mm, L2 = 4mm, L3 = 1.5mm, L4 = 1mm, L5 = 1mm, p = 7.5 mm.
4：Experimental Procedures and Operational Workflow
The prototype is fabricated and measured for S-Parameters and radiation patterns. Simulated and measured results are compared.
5：Data Analysis Methods
Analysis includes dispersion diagram, S-Parameters, and radiation patterns to verify the antenna's performance.
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