Bolt Shape UHF RFID Tag Antenna for Insertion to a Tree

생목 삽입용 볼트 모양의 UHF RFID 태그 안테나 설계

  • Chung, You-Chung (Department of Information and Communication, Daegu University) ;
  • Jeon, Byung-Don (Department of Information and Communication, Daegu University)
  • 정유정 (대구대학교 정보통신공학과) ;
  • 전병돈 (대구대학교 정보통신공학과)
  • Received : 2012.02.20
  • Accepted : 2012.02.21
  • Published : 2012.02.29


A plastic bolt shape UHF RFID tag has been developed for a live tree. The UHF tag is designed and installed into the head part of the bolt, inserted into a tree for management of tree. If the tag antenna is installed near the high dielectric constant material, the impedance of the tag antenna will be changed, and the tag does not work. Therefore, the dielectric constants of wood and plastic bolt are considered for tag antenna design. The input reflection coefficient characteristics and the reading range patterns are measured and compared. This UHF RFID tag can be applied into a live tree, and the status and location of tree can be controlled with the RFID tag. This developed UHF tag can be applied to any applications and objects using a bolt.


Bolt Shape UHF Tag;Tag for High Dielectric Material;UHF Tag for Tree


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