MINIATURIZED Ⅰ - SLOTTED MULTIBAND PIFA FOR WIRELESS APPLICATIONS

摘要

In this paper, a novel approach of multiband planar inverted-F Antenna for wireless communication applications has been presented. The multiband antenna has been designed by using one rectangular parasitic element which is placed under Ⅰ - slotted radiating element to achieve multiband operating frequencies. This multiband PIFA can be operated at various operating frequencies which are PCS1900 UL Band (1.90 GHz), IMT - E2600 (2.59 GHz), 4G WE Band38 (2.59 GHz), LTE Band22/42 Band(3.50 GHz), WiMAX(3.5 GHz) and WLAN/HIPERLAN (5.4 GHz) applications. The proposed antenna comprises of a Flame Retardant 4 (FR4) dielectric substrate, which is constructed below the rectangular patch, a shorting plate which supports the radiating element and acts as a connector between the top patch and the ground plane. The ground plane is located under the substrate. The overall dimension of the proposed antenna is 27 mm × 30 mm ×3.8 mm. Efforts has been made to keep the height(3.8mm) minimum possible so that, the antenna can be easily placed in the housing of handheld devices. The simulated results have shown a gain of 3-7 dB and radiation pattern gives almost omni - directional pattern at different targeted frequencies. The antenna layout in terms of antenna design, return loss, VSWR, gain and radiation pattern has been shown in this paper.