UHF RFID antenna: A printed dipol antenna with CPS matching circuit and inductively coupled feed

The paper presents simulated and measured results of the UHF RFID antenna realized with dipole matched to a CPS (coplanar stripline) and inductively coupled with small rectangular loop. Such design of the antenna enables easy achieving and controlling high values of the inductive reactance that is necessary for obtaining good matching of antenna to ASIC (Application Specific Integrated Circuit) chip. The antenna is characterized by simple and robust design which results in low-cost realization.