This paper presents the results achieved with a dualpolarized multiple-input multiple-output (MIMO) measurement system in the 2 GHz range. Results from continuous measurement routes were used in evaluating and comparing different MIMO antenna configurations. Different pattern and polarization diversity possibilities were studied using two methods: elements were selected from the antenna arrays ...

Code Division Multiple Accesses (CDMA), one of the effective and efficient technologies, is used in 2nd generation (2G), 3rd generation (3G) wireless and becomes one of potential candidates for the physical layer of 4G mobile systems with the aim of improving cell capacity communication. The paper presents the CDMA system with Broadside antenna array is proposed for a multipath fading channel. ...

We propose a novel high directive antenna based on 1-D cavity resonator which is composed of a layer of air and a layer of anisotropic left-handed material. Resonance conditions for such a cavity resonator are analyzed, and in the cavity, the resonant frequency is independent of the lateral thickness. A cavity antenna can be made ultra-thin based on the aforementioned property. DOI: 10.2529/PIE...

adar systems realized with a phased array antenna offer several advantages over systems using a conventional parabolic dish or mechanically steered antenna. These advantages include the production of directive beams that can be rapidly repositioned electronically, the generation of multiple independently steered antenna beams from a common aperture, the ability to make antennas conformal with t...

This paper describes the design and simulation of the new Ɛ negative metamaterial unit cell structure and then the unit cells are combined to form 3D array which use as metamaterial cover with a single microstrip patch antenna. The new Ɛ negative metamaterial is based on the ELC resonator structure, which is used for obtaining the negative value of permittivity and positive value of permeabilit...