INTRODUCTION Mobile communications, wireless interconnections, wireless local area networks (WLANs), and cellular telephone technologies constitute one of the fastest growing industrial markets today. Progress in the direction of wireless communication leads to a great demand for the development of compact antennas to support multiple applications that can be easily integrated into the small space available inside the device. In the case of, portable antenna technology has grown alongside mobile and cellular technologies. The proper antenna for a device is the most important factor. This will improve the transmission and reception of signals, reduce power consumption, have a long life and improve the marketability of the device. Antennas used for the first portable wireless portable devices, so-called whip antennas. Quarter-wave whip antennas were more popular due to their simple and convenient design [1]. It has an omnidirectional pattern in the earth plane when held upright and a gain that meets device specifications. A new antenna design has been implemented on radios with a lower profile than the whip antenna and without significantly reducing performance. These antennas include the quarter-wave helical shape and the stubby helical antenna, which is the shortest antenna available. In recent years, the demand for compact portable communication devices has grown. Thus devices smaller than the size of the palm of the hand appeared on the market. The size of the antenna is an important factor that limits the miniaturization of the device. In recent years, new designs based on the compact planar inverted F-shaped antenna (PIFA) and micro strip antennas (MSA) have become popular for portable wireless devices because these antennas have… half the paper… . ...input power to the antenna.1.5 HIGH FREQUENCY STRUCTURE SIMULATOR (HFSS)HFSS is the industry standard simulation tool for the 3D full-wave electromagnetic field. provides E fields and H fields, S parameters, currents and near and far radiated field. HFSS is an engineering design tool that represents an automated solution process where users are only required to specify material properties, geometry and the desired output. here HFSS will automatically generate an efficient, accurate and appropriate mesh to solve the problem using the proven finite element method. The core of the HFSS program is based on the finite element method (FEM) (its practical application often known as finite element analysis (FEA)) where it is a numerical technique for finding approximate solutions to partial differential equations (PDEs) and their systems, as well as (less often) integral equations.