Fig. 4
From: A compact tri-band omnidirectional antenna design for CubeSat applications

Study of the proposed antenna geometry w.r.t. the ground plane: (a) Design 1, (b) Design 2, (c) Design 2, (d) Design 4.
From: A compact tri-band omnidirectional antenna design for CubeSat applications
Study of the proposed antenna geometry w.r.t. the ground plane: (a) Design 1, (b) Design 2, (c) Design 2, (d) Design 4.