Four-State Coupled-Line Resonator for Chipless RFID Tags Application
Round 1
Reviewer 1 Report
Dear authors,
I am very excited to have been given the opportunity to revise this manuscript. The paper proposes the Four-State Coupled-Line Resonator for Chipless RFID Tags Application. This approach proposes a novel chipless RFID tag was designed and fabricated. This structure contains six quad-state microstrip coupled-line resonators. For each resonator, two resonance frequencies are possible; therefore, a single resonator can be reconfigured for two-bit information codes (00, 01, 10, and 11), which is more economical than conventional chipless RFID tag designs.
Although I did not find any technical errors in the paper, its scope and originality is very limited. The manuscript is well written, has an important approach, and should be of great interest to the readers. The mathematical representation of some formulas could be improved.
Reviewer 2 Report
This paper presents a novel quad-state coupled-line microstrip resonator for compact chipless radio frequency identification (RFID) tags. The proposed resonator can be reconfigured to present one of four possible states. The paper is well written and presented. The paper is interesting and supported with measurements. I don't have any concerns about it.
