Taming the Electromagnetic Boundaries via Metasurfaces: From Theory and Fabrication to Functional Devices

Figure 28

(a) Groove antennas based on slot array. (b) The -plane radiation pattern for the antenna in (a). (c) Patch antennas loaded with the groove structure. (d) The -plane radiation pattern for the antenna in (c). (e) Slot array antenna with low coupling. (f) Coupling efficiency of the antenna in (c). Figures are reproduced from [163].

(a)

(b)

(c)

(d)

(e)

(f)