Micro strip antennas have been the subject of some inventive work in recent years, and are currently one of the most dynamic fields in antenna theory. A single wideband, E-shaped, compact microstrip antenna is presented in this article in order to be employed for high speed WLANs operating in the C band range. Employing only a single patch, a high impedance bandwidth is achieved. The simulated ...

The design and test of microstrip slot antenna array for 3D microwave imaging for the structural assessment of concrete structure is presented in this paper. The array contains 16 antenna elements and uses microstrip feed network for the ease in the design. It also adopts commercially available PIN diodes as switches to control the sequence of turning on or off microstrip slot antenna elements....

The suitability of various radiating systems for generating a directive high power microwave (HPhl ) beam is investigated. It is concluded that offset reflector antenna systems are well suited for this purpose. An HPM reflector antenna may consist of one or two reflectors that are illuminated by single or array feeds. To accurately predict the performance of an HPM reflector antenna, a versatil...

It is important to estimate conductivity and permittivity of formation around a borehole. Arrival time and amplitude of the direct wave in single-hole borehole radar is related to the electromagnetic parameters. In this paper, we propose a liner array of dipole antenna elements in a borehole for a receiver. We introduced an optical modulator to transfer the received array signals to optical sig...

Abstract— Study of a novel planar circular disc monopole ultrawide-band antenna fed by coaxial line is presented in this paper. The radiator, ground plane and the feeder equipment of the antenna are placed on the same plate. The special structure reduces the spatial volume, and it is used to realize the miniaturization of the antenna. The basic theory and design method are analyzed, and detaile...

The interaction of a helical antenna, mounted on a mobile handset, with a human head phantom is investigated in this paper. Using the Genetic Algorithms (GA) technique combined with the Method of Moments (MoM), an optimization of the antenna structure is achieved regarding the input impedance at the operating frequency. The Finite Difference Time Domain (FDTD) method is then applied to simulate...

The area of micro strip antennas has seen some inventive work in recent years and is currently one of the most dynamic fields of antenna theory. This designing is very easy and chip in micro strip antenna designing. In this paper SHF band frequencies x-band frequency 10 GHz and Kuband frequency 13GHz are gives the best result, the antenna has become a necessity for many applications in recent w...