RFID antenna humidity sensor co-design for USN applications

IEICE Electronics Express

Yasar Amin¹  Yi Feng¹  Hannu Tenhunen¹  Li-Rong Zheng¹  Qiang Chen¹ 

[1] iPack VINN Excellence Center, Royal Institute of Technology (KTH)

关键词: RFID antenna;    humidity sensor;    sensor calibration;    inkjet printing;    flexible electronics;   

DOI  :  10.1587/elex.10.20130003

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(4)Cited-By(1)We demonstrate for the first time an RFID tag antenna which itself is humidity sensor and also provides calibration functionality. The antenna is comprised of T-matching network and horizontally meandered lines for impedance matching and reliable near-field communication. The novel contour design provides humidity sensing, and calibration functions whilst concurrently acts as a radiating element along with quadrangular capacitive tip-loading with covered middle portion for far-field communication. The inkjet printed prototypes of the antenna provide effective ambient humidity sensing while demonstrating stable RFID communication. The antenna has a compact size of 1.1 × 10.2cm for 902-928MHz band.

【 授权许可】

Unknown