Abstract-In this research work, a novel design of a metal detector is proposed. To fulfill this, several results obtained with an edge based FEM simulator, and an analytical model were used.The main objective of the proposed detector is to diminish the influence of the soil in the detector performance, given that this is an important problem on landmine detection [1]. By using numerical modeling could be demonstrated the feasibility of the proposed design. Keywords: Demining,Electromagnetic fields, Humanitarian demining, Landmines, Metal detectors, Numerical modeling.I. INTRODUCTION According to [2] a receiver coil will get the field induced directly by the transmitter coil, the field induced by the soil and the field induced by buried objects. Usually, a metal detector senses the sum of those induced fields and it should discern the presence of a metal from the mix of fields [2].The field induced directly by the transmitter coil on the receiver coil could be excluded from the measure; given that, it generates a constant voltage. Commonly, this voltage is measured during the detector construction, and it is defined as a threshold or zero reference level, it could require periodic calibration and it could show important problems when the battery is discharging.By other side, it is necessary to recognize the signal produced by soil, the soil itself induces a voltage in the receiver coil that could be construed as the presence of a metal. Usually it is necessary to do some calibration procedures with commercial detectors, before the detection process is made; however, soil can show variable electromagnetic properties and the detector would work decalibrated.II. METHODSThe influence of soils in metal detector performance has been studied previously. Theoretically, by using analytical models in [2] ,[3] y [4], by using a numerical modeling. These studies, allow to conclude that the electromagnetic properties of soils are highly influent in the detector performance, especially when soils have relative magnetic permeability different from 1. It was experimentally confirmed in [1], these results show that a detector can decrease its probability of detection and increase its false alarms rate, when the soil is magnetic. Taking into consideration that a detector needs a strategy to diminish the effect of soil in its performance.In order to calculate the induced field of a buried metal a finite elements simulator was developed. In this simulator the model presented in [6] was implemented using the Matlab software This design proposal aims to vanish the voltage induced directly by the transmitter coil, and the voltage induced by soil, in order to avoid a pair of calibrations.To fulfill this, it is needed to analyze the induced magnetic fields behavior in the scenario of Fig.1, a horizontal coil over a half space.