Defect PIFA Antenna

Noor Juliana , Basiron (2015) Defect PIFA Antenna. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Defect PIFA Antenna 24 Pages.pdf - Submitted Version Download (528kB)

Abstract

PIFA antenna is particularly suitable for cellular telephone systems since it has the advantages of small size and light weight. The PIFA antenna is composed of radiating patch, feeding pins and shorting plate which is connected to the ground plane. The reasons for defect antenna are that it allows additional functionality of the antenna, makes it more applicable for other technologies and also can obtain more properties without the need for multiple antenna. Basically the properties that can be configured are frequency, pattern and polarization. Through this project, the concept of Defect PIFA Antenna will be verified and the defect technique is used to give dual-band operations in the range of 1.9GHz and 2.4GHz, to be utilized on different technologies of GSM1900 and WiFi. A substrate of FR4 with thickness of 1.6mm and dielectric constant of 4.4 is used in fabricating process of an antenna because it is easy to be fabricate and low cost compare to other types of substrate. The designed antenna has been simulated using the CST Microwave version 2014 software. The simulated and measurement results for return loss, gain, directivity and radiation pattern are presented and well discussed. The gain of 0~5dB is achieved on the basis of -10dB return loss as an acceptable reference in mobile phones applications.

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