Browsing by Author "Wang, Sy-Been"

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All-planar Penta-band Strip-loaded Slit Antenna for Laptop Applications
(2009)
Ling, Ching-Wei
;
Wang, Sy-Been
;
Chung, Shyh-Jong
;
電信工程研究所
;
Institute of Communications Engineering
In this study, an all-planar penta-band antenna for laptop applications is presented. This antenna is placed parallel to the upper edge of the laptop panel (300 x 200 mm(2)) with a restricted available space (120 x 10 x 0.4 mm(3)) The antenna is mainly composed of two back-to-back strip-loaded slit antennas with different sizes and a T-shaped feeding network. Each strip-loaded slit antenna has two resonances, respectively provided by the metal strip and the slit. The measured 6-dB return loss bandwidth covers the GSM850/900/DCS/PCS/UMTS. Over the GSM850/900 and the DCS/PCS/UMTS bands, the average gains in the H-plane are about 2.06 dBi and 0.02 dBi, respectively. Good antenna features and the planar configuration make the proposed antenna attractive for ultra-thin laptop applications.
PLANAR ANTENNA
(2010-07-29)
Chung, Shyh-Jong
;
Wang, Sy-Been
;
Ling, Ching-Wei
The present invention discloses a planar antenna including a substrate, a ground plane and a feed line. The ground plane is disposed on one side of the substrate. The ground plane includes a hollow portion. The feed line disposed on another side of the substrate and corresponding to the hollow portion for feeding a signal. The present invention also discloses a planar antenna including a substrate, a ground plane and a feed line. The ground plane is disposed on one side of the substrate. The ground plane includes a first hollow portion and a second hollow portion. The feed line is disposed on another side of the substrate and having a first branch feed portion and a second branch feed portion for feeding a signal, and the first branch feed portion and the second branch feed portion are aligned with the first hollow portion and the second hollow portion respectively.