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A tablet MIMO antenna with a wave-trap for LTE/WiMAX applications is presented. To improve the isolation between the two radiating elements of MIMO antenna, added a wave-trap slot on the ground plane. The isolation is improved by approximately 20 dB at the LTE700 frequency. The design MIMO antenna satisfies a 6 dB return loss requirement and the obtained envelope correlation coefficient (ECC) is lower...
The rapid progress of wireless communication, sensing, and mobile technologies has enabled students to learn in an environment that combines learning resources from both the real world and the digital world. It can be viewed as a new learning style which has been called context-aware ubiquitous learning. Most of context-aware ubiquitous learning systems employ expensive sensing technologies, such...
A compact T-slit monopole antenna with slotted ground plane in the mobile phone for penta-band operation is proposed. In this configuration, the antenna comprises a T-slit monopole printed on the top ungrounded portion of an FR4 substrate of small size of 47 ?? 5.4 mm2 and a slotted ground plane etched on the back side of the substrate of size of 47 ?? 10 mm2. In addition, an inverted-L copper strip...
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