Compact dual band printed planar inverted-F antenna for wireless communications

摘要

This paper deals with the development of compact dual band printed planar inverted-F antenna (PIFA) for wireless communications. The antenna is intended to be implemented for mobile devices, hence a cheap and compact antenna is absolutely required. The structure of inverted-F shape is chosen for the basic design of antenna as it has some advantages such as compactness, large bandwidth and easy manufacturability. Prior hardware realization, the proposed antenna is designed and analyzed through 3D simulation software. The antenna is realized on a 1.6mm thick FR4 epoxy dielectric substrate with the total dimension of 32mm × 26mm. The characterization result shows that the realized antenna has the lower band resonant frequency of 2.34GHz with the -10dB working bandwidth of 416MHz, and the higher band resonant frequency of 3.3GHz with the -10dB working bandwidth of 802MHz in which it satisfies with the desired wireless communications.