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

Chow-Yen-Desmond SIM  Chih-Chiang CHEN  Che-Yu LI  Sheng-Yang HUANG  

IEICE TRANSACTIONS on Communications   Vol.E101-B   No.2   pp.324-331
Publication Date: 2018/02/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2017ISP0008
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Antennas
uniplanar antenna,  LTE/WWAN,  T-shaped coupling feed,  reduced ground effects,  

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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 55mm × 15mm × 0.8mm, the proposed antenna is able to excite dual wideband transmission over the full LTE/WWAN operation ranges of 698-960MHz and 1710-2690MHz. Furthermore, the proposed antenna also exhibits reduced ground effects, such that reducing the ground size of the proposed antenna will not affect its performance.