Broadband Microstrip Log Periodic Dipole Array Antenna for Wireless Applications

Abstract

The increasing demands of wireless, short range and high data rate transmissions pushed to propose different bands of the frequency spectrum, in order to support high data rate wireless communications. As a matter of fact, planar antennas are widely used because of their low profiles, easy design and fabrication. The Microstrip antenna offers compact size, low cost and an ease of integration into front-end circuits. The main disadvantage of these antennas is narrow bandwidth. To increase the bandwidth of Microstrip antennas, Log Periodic Dipole Arrays (LPDA) are introduced. In this article, a log-periodic dipole array printed on FR4 material (ε=4.3) for broadband applications i.e. from 1GHz to 10GHz is used for wireless communications. The proposed antenna has to be designed, optimized using Altair FEKO and then realized. The design methodology of proposed antenna is also to be verified by using commercially available software like C, python and MATLAB. The performance of the proposed antenna is to be verified by using radiation characteristics like return loss, VSWR, impedance, bandwidth, Directivity and gain. The proposed antenna is to be fabricated and the results will be compared with the simulated antenna results.