This article describes the design of a planar antenna, which consists of available small-scale antenna elements and can be used in receivers with adaptive noise reduction algorithms, in particular, the receiving antenna for capsule endoscopic system “Landish”. The entire planar antenna simulation results are described, material for common dielectric substrate is chosen. The differences between the characteristics of the radiation field in the far zone, the voltage standing wave ratio and wave resistance depending on the thickness of the substrate is noted. The finite element method was used for numerical calculations.