Compact LTE/WWAN Antenna with Reduced Ground Effects for Tablet/Laptop Applications

Abstract

A compact uniplanar antenna design for tablet/laptop applications is proposed. The main design principle of this antenna is the use of the coupling-feed mechanism. The proposed antenna is composed of an inverted L-shaped parasitic element, T-shaped feeding strip, parasitic shorted strip, and a step tuning stub. With its small size of 55 mm × 15 mm × 0.8 mm, the proposed antenna is able to excite dual wideband transmission over the full LTE/WWAN operation ranges of 698-960 MHz and 1710-2690 MHz. Furthermore, the proposed antenna also exhibits reduced ground effects, such that reducing the ground size of the proposed antenna will not affect its performance.