| Summary: | 碩士 === 長庚大學 === 電子工程學系 === 101 === This paper presents three different structures of microstrip antennas constructed on textiles for smart clothing applications. Smart clothing is a typical wearable personal communication system, which can be used for eldercare, emergency medical, firefighting, military, and athlete monitoring. Textile antennas show great promise due to their ease of integration with other textile materials. This paper presents the design of three textile antennas: (a) rectangular microstrip patch antenna, (2) annular slot antenna, and (3) microstrip PIFA antenna, in the 2.45 GHz WLAN band for smart clothing applications. Conductive material, a copper plated polyester fabric, was used as the antenna radiators and ground planes. Substrate used in the design is insulating neoprene fabric with a thickness of 4 mm and the permittivity of 1.5. These three antennas are low-profile, lightweight, flexible, and washable, which is most suitable for wearable applications. The textile patch antennas with a maximum gain of 5.96 dBi and a bandwidth of 4.6%. The gain and bandwidth of the annual slot antenna are 2.9 dBi and 13.1%, respectively. The PIFA antenna has the widest bandwidth of 17.3% but the smallest gain of 1.2 dBi. The performance deterioration of the proposed antennas is also analyzed under bent conditions to check compatibility with wearable applications. Two 22 patch and slot antenna arrays are also presented in this paper.
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