Koji WADA

Near-Field Credit Card-Sized Chipless RFID Tags Using Higher-Order Mode Resonance Frequencies of Transmission Line Resonators
Fuminori SAKAI Mitsuo MAKIMOTO Koji WADA 
Publication:   
Publication Date: 2020/09/01
Vol. E103-A  No. 9  pp. 1001-1010
Type of Manuscript:  Special Section PAPER (Special Section on Circuits and Systems)
Category: 
Keyword: 
chipless tag, code identification, higher-mode resonance, near-field coupling, stepped impedance resonator, 
 Summary | Full Text:PDF(4.3MB)
Near-Field Chipless RFID Tag System Using Inductive Coupling Between a Multimode Resonator and Detection Probes
Fuminori SAKAI Mitsuo MAKIMOTO Koji WADA 
Publication:   
Publication Date: 2019/04/01
Vol. E102-B  No. 4  pp. 722-731
Type of Manuscript:  Special Section PAPER (Special Section on Sensing, Wireless Networking, Data Collection, Analysis and Processing Technologies for Ambient Intelligence with Internet of Things)
Category: 
Keyword: 
RFID tag, multimode resonator, stepped impedance resonator (SIR), bar code, inductive probe, 
 Summary | Full Text:PDF(2.7MB)
Simulational Approach to Realize a Triplexer Based on Bandpass Filters Using Wideband Resonators
Kosei TANII Koji WADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2016/07/01
Vol. E99-C  No. 7  pp. 751-760
Type of Manuscript:  Special Section PAPER (Special Section on Recent Advances in Simulation Techniques and Their Applications for Electronics)
Category: 
Keyword: 
triplexer, bandpass filter, wideband resonator, electromagnetic simulation, 
 Summary | Full Text:PDF(2.3MB)