Antipodal Vivaldi Antenna for Water Pipe Sensor and Telemetry

Figure 3

2-D radiation patterns (dBi) of (a) the planar antenna in free space for 𝜙=0^∘ (first column) and 𝜙=90^∘ (second column); (b) the conformal antenna to a 141.2 mm diameter of curvature in free space for 𝜙=0^∘ and 𝜙=90^∘; (c) the conformal antenna to a 114.3 mm diameter of curvature in free space for 𝜙=0^∘ and 𝜙=90^∘.

(a)

(b)

(c)