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A pattern reconfigurable wide antenna is proposed and investigated for portable device applications to reduce the electromagnetic interaction between the antenna and human head. The proposed radiation pattern reconfigurable antenna consists of a driven element, a parasitic element and six diode switches, which are used to control the radiation pattern. The proposed antenna can be used for LTE2300...
In this paper, the transmission and radiation properties of carbon nanotube (CNT) array are investigated experimentally. It has been found that the transmission of the waveguide is improved by installing the CNT array in the rectangular waveguide, indicating the CNT arrays can transport microwave energy efficiently. By comparing the radiations of microstrip Yagi-Uda antenna and microstrip patch with...
A novel planar inverted-F antenna (PIFA) is designed in this paper. Compared to the previous PIFA, the proposed PIFA can enhance bandwidths and achieve multi-band which is loaded with a T-shaped ground plane and etched slots on ground plane and a rectangular patch. It covered 4 service bands, including GSM900, DCS1800, PCS1900 and ISM2450 under the criteria -7 dB return loss for the first band and...
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