超高頻RFID晶片微帶天線結構RFID TAG ANTENNA FOR ATTACHED ON HIGH CONDUCTIVE OBJECT

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

13/625,520

專利證號

US 8,963,781 B2

專利獲證名稱

超高頻RFID晶片微帶天線結構RFID TAG ANTENNA FOR ATTACHED ON HIGH CONDUCTIVE OBJECT

專利所屬機關 (申請機關)

國立臺北科技大學

獲證日期

2015/02/24

技術說明

一種可附著於高導電性物體之RFID天線，至少包含：一介電基板包含一導電接地面；一天線主輻射體貼附於該介電基板正面，該天線主輻射體包含:一短路微帶線形成於二長柄剃刀形間隙及一間隙相連通溝渠所圍之導電區域內，短路微帶線連接至接地面，其中，所述二長柄剃刀形間隙，以刀背對刀背的方式呈鏡面對稱，該間隙相連通溝渠連接所述二長柄剃刀形間隙之長柄部；一RFID晶片，粘貼於該間隙相連通溝渠上；一饋入微帶線，位於該二長柄剃刀形間隙之剃刀間隙起點至該RFID晶片止所包圍之導電區域內。 應用於超高頻RFID晶片之台灣RFID頻段接收(922 MHz~928 MHz)的微型化天線，可附著至高導電性材料上，克服一般RFID晶片於高導電性物體可讀性過低的問題。 An UHF RFID antenna design is disclosed. The antenna radiation body is formed on a FR4 glass fiber having a ground plane on the backside surface. The surface of antenna radiation body is etched to form a pair of blade-like with long handle slits and an interconnect trench formed in between. The trench region is for a RFID tag seated thereon. Therefore, a short circuit micro-strip and a feed-in micro-strip of antenna radiation body separated by the blade-like slits and the interconnect trench are generated. Application for RFID tag in Ultra high frequency of Taiwan RFID band(922 MHz ~ 928 MHz) miniaturized antenna, can attach on high conductivity object, to overcome the general low readability problem of RFID tag antenna, the proposed antenna can be used to any printed circuit board.

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02-87720360

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