Designs of RFID Reader and Tag Antennas
碩士 === 國立臺灣科技大學 === 電機工程系 === 97 === This thesis proposes three UHF passive tag antennas for radio frequency identification (RFID) applications. The first tag antenna mounted on a metallic object uses a gap coupling structure to provide RF energy to a radiator so that effects from metallic surface t...
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ndltd-TW-097NTUS54420792016-05-02T04:11:39Z http://ndltd.ncl.edu.tw/handle/59785959246224410641 Designs of RFID Reader and Tag Antennas 射頻辨識讀取器與標籤之天線設計 Kuo-hsien Wu 吳國賢 碩士 國立臺灣科技大學 電機工程系 97 This thesis proposes three UHF passive tag antennas for radio frequency identification (RFID) applications. The first tag antenna mounted on a metallic object uses a gap coupling structure to provide RF energy to a radiator so that effects from metallic surface to the antenna can be reduced significantly. The second tag antenna is designed to be built in a portable device, where both quasi-lumped and lumped circuits are applied to achieve a conjugate match between the tag antenna and IC. Therefore the reading range may be enhanced. To have both the near- and far-zone operations, the third passive tag antenna with is thus proposed to meet those requirements by having a loop-type feed. On the other hand, two RFID reader antennas operating in UHF band are also presented in this study. A loop antenna having large intensity in magnetic field has been designed for reading item-level tags. This reader antenna may be used in the near-zone RFID system, such as an intelligent bookshelf for book management. Another reader antenna design is a quasi-yagi antenna where a compact antenna with a suitable gain is proposed for identify an object in a specific direction. Chang-Fa Yang 楊成發 2009 學位論文 ; thesis 66 zh-TW |
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碩士 === 國立臺灣科技大學 === 電機工程系 === 97 === This thesis proposes three UHF passive tag antennas for radio frequency identification (RFID) applications. The first tag antenna mounted on a metallic object uses a gap coupling structure to provide RF energy to a radiator so that effects from metallic surface to the antenna can be reduced significantly. The second tag antenna is designed to be built in a portable device, where both quasi-lumped and lumped circuits are applied to achieve a conjugate match between the tag antenna and IC. Therefore the reading range may be enhanced. To have both the near- and far-zone operations, the third passive tag antenna with is thus proposed to meet those requirements by having a loop-type feed.
On the other hand, two RFID reader antennas operating in UHF band are also presented in this study. A loop antenna having large intensity in magnetic field has been designed for reading item-level tags. This reader antenna may be used in the near-zone RFID system, such as an intelligent bookshelf for book management. Another reader antenna design is a quasi-yagi antenna where a compact antenna with a suitable gain is proposed for identify an object in a specific direction.
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Chang-Fa Yang |
author_facet |
Chang-Fa Yang Kuo-hsien Wu 吳國賢 |
author |
Kuo-hsien Wu 吳國賢 |
spellingShingle |
Kuo-hsien Wu 吳國賢 Designs of RFID Reader and Tag Antennas |
author_sort |
Kuo-hsien Wu |
title |
Designs of RFID Reader and Tag Antennas |
title_short |
Designs of RFID Reader and Tag Antennas |
title_full |
Designs of RFID Reader and Tag Antennas |
title_fullStr |
Designs of RFID Reader and Tag Antennas |
title_full_unstemmed |
Designs of RFID Reader and Tag Antennas |
title_sort |
designs of rfid reader and tag antennas |
publishDate |
2009 |
url |
http://ndltd.ncl.edu.tw/handle/59785959246224410641 |
work_keys_str_mv |
AT kuohsienwu designsofrfidreaderandtagantennas AT wúguóxián designsofrfidreaderandtagantennas AT kuohsienwu shèpínbiànshídúqǔqìyǔbiāoqiānzhītiānxiànshèjì AT wúguóxián shèpínbiànshídúqǔqìyǔbiāoqiānzhītiānxiànshèjì |
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