磁性材料及器件
磁性材料及器件
자성재료급기건
JOURNAL OF MAGNETIC MATERIALS AND DEVICES
2014年
6期
37-40,73
,共5页
射频识别(RFID)%微机电系统(MEMS)%微天线%仿真%设计
射頻識彆(RFID)%微機電繫統(MEMS)%微天線%倣真%設計
사빈식별(RFID)%미궤전계통(MEMS)%미천선%방진%설계
radio frequency identification(RFID)%micro electromechanical system(MEMS)%micro antenna%simulation%design
针对13.56MHz RFID系统大面积平面螺旋线圈天线存在的缺陷，提出了一种用于13.56MHz频段的新型RF-MEMS微天线，并使用HFSS软件进行了仿真和设计，同时采用MEMS工艺实现器件制作。该微天线由螺线管线圈及高性能铁氧体薄膜组成，总体尺寸小于10mm×6.7mm×0.46mm。该微天线灵敏度达到了36.2mV/μT，使用电感值为1.6μH的读卡器线圈与匹配谐振后的微天线进行耦合，在6mm处该微天线的谐振电压达到7.1V，同时将集成了标签芯片及谐振电容的微天线与符合 ISO14443标准的读卡器进行通信，其通信距离达到12mm。
針對13.56MHz RFID繫統大麵積平麵螺鏇線圈天線存在的缺陷，提齣瞭一種用于13.56MHz頻段的新型RF-MEMS微天線，併使用HFSS軟件進行瞭倣真和設計，同時採用MEMS工藝實現器件製作。該微天線由螺線管線圈及高性能鐵氧體薄膜組成，總體呎吋小于10mm×6.7mm×0.46mm。該微天線靈敏度達到瞭36.2mV/μT，使用電感值為1.6μH的讀卡器線圈與匹配諧振後的微天線進行耦閤，在6mm處該微天線的諧振電壓達到7.1V，同時將集成瞭標籤芯片及諧振電容的微天線與符閤 ISO14443標準的讀卡器進行通信，其通信距離達到12mm。
침대13.56MHz RFID계통대면적평면라선선권천선존재적결함，제출료일충용우13.56MHz빈단적신형RF-MEMS미천선，병사용HFSS연건진행료방진화설계，동시채용MEMS공예실현기건제작。해미천선유라선관선권급고성능철양체박막조성，총체척촌소우10mm×6.7mm×0.46mm。해미천선령민도체도료36.2mV/μT，사용전감치위1.6μH적독잡기선권여필배해진후적미천선진행우합，재6mm처해미천선적해진전압체도7.1V，동시장집성료표첨심편급해진전용적미천선여부합 ISO14443표준적독잡기진행통신，기통신거리체도12mm。
In this paper, a novel RF-MEMS antenna for 13.56MHz applications is presented to resolve the problems exist in the large area spiral antenna. RF-MEMS antenna is simulated and designed by means of high frequency structure simulator (HFSS) software. By MEMS process, the micro antenna has been fabricated, which consists of solenoid-type coil and high performance ferrite film, and has a measurement of less than 10mm×6.7mm×0.46mm. Test results show that the sensitivity of the micro antenna achieves 36.2mV/μT. Voltages up to 7.1 V were obtained at the resonant micro antenna from a 1.6μH reader coil at 6 mm distance. The assembled micro antenna with RFID chip and capacitor was tested using an ISO14443 type RFID reader at 13.56 MHz and successful communication was established at a distance of 12 mm.
