UHF band dipole antenna array design For RFID smart cart applications
碩士 === 景文科技大學 === 電子工程系電腦與通訊碩士班 === 102 === In this thesis, we propose a method to design a dipole array antenna which has for RFID smart cart application. Because this environment of the RFID smart cart is limited, dipole array antenna uses a half-wavelength and an asymmetric structure to generat...
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| Format: | Others |
| Language: | zh-TW |
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2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/y396jz |
| Summary: | 碩士 === 景文科技大學 === 電子工程系電腦與通訊碩士班 === 102 === In this thesis, we propose a method to design a dipole array antenna which has for RFID smart cart application. Because this environment of the RFID smart cart is limited, dipole array antenna uses a half-wavelength and an asymmetric structure to generate the current discontinuous effect. Also the dipole array antenna use Yagi antenna structure with two metal strips, in order to control the radiation pattern direction. The dipole array antenna can achieve high gain and high directivity of the radiation pattern without use the large metal reflector plate. It has the advantages of easy production and low cost on the printed circuit board. The modified Yagi dipole array antenna is less than -10dBi in Return Loss condition. The operating frequency of the modified antenna is 900MHz, and the dimension of the antenna is 125mm*272mm. The detailed content will be analyzed and discussed in this paper.
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