Investigation of Pear Shape Monopole Antenna (PSMA) with matching device

Solution of matching problem for pear-shaped monopole antenna (PSMA) for personal communication systems (PCS) is proposed by introducing some matching device. The proposed antenna utilizes the advantages of the simple design to match antenna structure with feeding cable and free space. PSMA contains a pear-shaped metallic core covered by a thin dielectric layer, which keeps antenna size small. PSMA properties are studied using materials with negative permittivity and permeability as dielectric coating. The method of auxiliary sources (MAS) used to study mentioned problems. Some numerical results are presented.