Fig. 9
From: Metamaterial conical beam antenna with dual band filtering response
Normalized radiation patterns for 2.95 GHz (a) at xoz plane and (b) at yoz plane, for 3 GHz (c) at xoz plane and (d) at yoz plane, for 4.3 GHz (e) at xoz plane and (f) at yoz plane, for 4.35 GHz (g) at xoz plane and (h) at yoz plane.
