Logistics-Grade UHF RFID Tag Design via Surrogate-Guided Bayesian Optimisation
IET SCIENCE MEASUREMENT & TECHNOLOGY, cilt.20, sa.1, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 20 Sayı: 1
- Basım Tarihi: 2026
- Doi Numarası: 10.1049/smt2.70077
- Dergi Adı: IET SCIENCE MEASUREMENT & TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Compendex, INSPEC, Directory of Open Access Journals, Academic Search Ultimate (EBSCO), Business Source Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
Logistics deployments demand Ultra-High Frequency Radio-Frequency Identification UHF RFID tags that are reliably matched inside the European Telecommunications Standards Institute (ETSI) 865-868 MHz corridor, with edge equalisation (-24.94 dB at 865/868 MHz; VSWR = 1.12), a deep centre at 866.5 MHz, flat in-band response, and shallow out-of-band behaviour. We address this narrow-band, standards-aware objective with a data-efficient pipeline that couples adaptive DOE (with near-corridor refinements and replay) to a multitask DNN surrogate predicting the entire return-loss spectrum plus auxiliary targets (resonance shift and minimum return loss). The surrogate then steers a Bayesian optimisation (BO) loop using EI with a near-hit prescreener (a corridor-aware feasibility gate) and a trust-region-like fast stop that halts exploration once the predicted resonance enters [863, 870] MHz. All methods operate on the same 13-parameter box, frequency grid (0.1 MHz densification in-band), material stack, and CST solver settings to ensure like-for-like comparisons against TRF, PSO and NMSA. On this basis, our approach yields the closest corridor-compliant response: RL (865 MHz) = -26.41 dB (within 1.5 dB of the -24.94 dB target), RL (868 MHz) = -22.91 dB (approximate to 2 dB shallow), and 2.7 MHz contiguous in-band -15 dB bandwidth. To validate real-world applicability, a physical prototype was fabricated and evaluated in an anechoic chamber, demonstrating a measured directivity of 5.01 dBi and maintaining topological robustness despite fixture-induced detuning. Furthermore, environmental resilience was explicitly verified through a packaging-induced detuning analysis on a 4 mm corrugated cardboard substrate. Compared against recent state-of-the-art (SOTA) journal publications, the results demonstrate that our surrogate-guided, corridor-aware BO concentrates EM effort where equalised edges are decided, producing highly deployable tag responses under a reproducible and solver-agnostic workflow.