YU, JIUN JANG,余俊璋,余俊璋,CHEN, CHIUNG HSIUNG,陈炯雄,陳炯雄,LU, CHUN AN,卢俊安,盧俊安,LIN, HONG CHING,林鸿钦,林鴻欽
申请号：
TW100141919
公开号：
TWI431534B
申请日:
2011.11.16
申请国别(地区):
TW
年份:
2014
代理人:
摘要：
A radio frequency (RF) identification tag includes a substrate, a planar antenna, a RF chip, a plurality of signal conductors and a plurality of ground conductors. The RF chip receives a RF signal from the planar antenna to excite the RF chip generating an identification code. The signal conductors are coupled to the planar antenna. The ground conductors and the signal conductors are disposed in alternating sequence and coplanarly disposed on the substrate to form a coplanar waveguide transmission line, which includes an impedance match portion and a transmission portion connected between the impedance match portion and the planar antenna. The impedance match portion has an input end and a ground plane. The input end is coupled to the signal conductors. The ground plane is coupled to the ground conductor and the RF chip is disposed between the input end and the ground plane.一種射頻識別標籤,包括一基板、一平面式天線、一射頻晶片、複數個訊號導體以及複數個接地導體。射頻晶片由平面式天線饋入一射頻訊號,以激發射頻晶片發出一辨識碼。此些訊號導體耦接於平面式天線。此些接地導體交錯地配置於此些訊號導體之相對兩側,並與此些訊號導體相鄰且共平面地配置在基板上,以形成一共平面波導傳輸線結構,其包括一阻抗匹配部及一傳輸部。阻抗匹配部具有一輸入端以及一接地平面,輸入端耦接此些訊號導體,而接地平面耦接此些接地導體。射頻晶片配置於輸入端與接地平面之間。傳輸部連接於阻抗匹配部與平面式天線之間。3a...射頻辨識標籤30...共平面波導傳輸線結構31...射頻晶片32...基板33...平面式天線34...跳線300...阻抗匹配部310...傳輸部311...第一接地導體314...第二訊號導體317...第四接地導體318...射頻訊號傳輸線320...感測區330...讀取區331...第一輻射帶332...第二輻射帶
