Title : 
Paired Snap-On Buttons Connections for Balanced Antennas in Wearable Systems
         
        
            Author : 
Chen, Shengjian Jammy ; Fumeaux, Christophe ; Ranasinghe, Damith Chinthana ; Kaufmann, Thomas
         
        
            Author_Institution : 
Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia
         
        
        
        
        
        
        
            Abstract : 
A pair of commercial snap-on buttons is demonstrated as a detachable radio frequency (RF) balanced connection between a garment-integrated textile dipole antenna and a passive sensor-enabled radio frequency identification (RFID) tag in a wearable wireless system. This arrangement offers reliable, low-cost, and easily detachable RF coupling and feeding connections for balanced antennas, as conceptualized in simulations and validated through measurements. In addition, a back-to-back balanced transmission-line structure has been designed and measured to characterize the RF performance of the proposed snap-on button connection. The resulting S-parameters indicate the good performance of the snap-on buttons as RF connectors for balanced antennas/transmission lines at least up to 5 GHz with insertion loss better than 0.8 dB.
         
        
            Keywords : 
S-parameters; dipole antennas; microwave antennas; radiofrequency identification; transmission lines; wearable antennas; RFID tag; S-parameters; back-to-back balanced transmission-line structure; balanced antennas; detachable radio frequency balanced connection; garment-integrated textile dipole antenna; paired snap-on buttons connections; passive sensor; radiofrequency identification tag; wearable wireless system; Antenna measurements; Biomedical monitoring; Connectors; Dipole antennas; Radio frequency; Antenna feeding; balanced transmission line; radio frequency identification (RFID); textile antennas; wearable electronic system;
         
        
        
            Journal_Title : 
Antennas and Wireless Propagation Letters, IEEE
         
        
        
        
        
            DOI : 
10.1109/LAWP.2014.2363852