Compact LTE/WWAN antenna with reduced ground effects for tablet/laptop applications

A compact uniplanar antenna design for tablet/laptop applications is proposed. The main design principle of this antenna is the use of coupling-feed mechanism. The proposed antenna is composed of a T-shaped feeding strip, parasitic shorted strip, and a step tuning stub. With a small size of 50 mm × 15 mm × 0.8 mm, the proposed antenna is able to excite dual wideband operation that can cover the entire LTE/WWAN operations 698-960 MHz and 1710-2690 MHz. Furthermore, the proposed antenna also exhibits reduced ground effects, in which reducing the ground size of proposed antenna will not affect the antenna's performances.