Compact Rectangular Microstrip Patch Antenna with Defected Ground Structure (DGS) of Swastik Shape for LTE Applications

摘要

In this paper a novel compact antenna suitable for long-term evolution (LTE) applications is presented. In handheld devices. The radiating elements are two planar swastik shape constructed by a meandered line and folded patch with inter digitated capacitive strips connected to the folded patch. To achieve high isolation between the two radiating elements, a defected ground plane (a combination of rectangular slot ring and inverted T-shaped slot stub) is employed. The antenna is designed to operate in the 746-787 MHz, 1850-1990 MHz, 1920-2170 MHz, and 3600-3700 MHz frequency bands. The characterization of the antenna in free-space as well as in the proximity of the user head and hand is presented. The results confirm the excellent performance of the proposed diversity antenna.