Research Article

A Directional Antenna in a Matching Liquid for Microwave Radar Imaging

Table 1

Details of the waveguide section: waveguide (WG) size and ridge height.

Waveguide sectionWaveguide length (mm)Waveguide height (mm)Ridge height (mm)

129.423.310.0
2143113.3
31438.615.4
48.443.215.4
58.447.814.7
68.452.414
78.4579.8
88.461.60