A Wideband Waveguide Antenna with Nearly Equal E- and H-Plane Radiation Patterns

Figure 1

The fabricated prototype and topology of the proposed antenna. (a) The photograph of the prototype antenna. (b) The cut-open view of the proposed antenna. (c) The cross-section along E-plane of the proposed antenna. The detailed dimensions (unit: mm) are 𝑎=15.8, 𝑏=7.9, 𝑐=2.1, 𝑑=2.7, 𝑒=3.9, 𝑓=14.3, 𝑔=4.85, ℎ=3.5, 𝑖=22, and 𝑡=2.

(a)

(b)

(c)