DESIGN AND SIMULATION OF HIGH GAIN LOG PERIODIC DIPOLE ARRAY ANTENNA

Publication Date : 01/08/2018


Author(s) :

Abdullahi Z. M., Ahmad K..


Volume/Issue :
Volume 13
,
Issue 2
(08 - 2018)



Abstract :

Wireless communication has a tremendous growth over the past few decades, but with the increasing demand to transmit high quality data, antennas with wide bandwidth are required. Multiband antennas are a solution to this problem, but they cannot cover a large number of bands, antennas with compact size which are designed to operate for the entire frequency band of a given system are desirable in such a scenario. Hence, a Log-Periodic Dipole Array (LPDA) antenna has been designed to obtain a relatively high amount of gain 12 dBi, this is above the usual LPDA antenna. This is as a result of employing a technique of design where a significant number of elements of the antenna are made to operate together at a given frequency; this was achieved by placing the elements in a close proximity throughout the boom of the antenna. A 4NEC2 Antenna Modeller software was used for the design and simulation of the antenna. The antenna was designed to operate in the UHF region thereby making it suitable for Global Positioning Satellite (GPS) reception. The frequency of its operation lies between 1227MHz and 1576MHz. The spacing constant, σ and length constant, τ are 0.183 and 0.964 respectively.


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