https://orcid.org/0000-0002-7435-0033
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Abstract
Frequency Selective Surface (FSS) is widely used to enhance the gain of antenna & reduces Electromagnetic Interference (EMI). In this work, a novel Frequency Selective Surface (FSS) is designed, analyzed, and fabricated along with passive Radio Frequency Identification (RFID) reader antenna operating at global Ultra-High Frequency (UHF) for wireless RFID applications. The antenna & FSS sheet is fabricated on less costly FR4 substrate with resonant bandwidth of 860–960 MHz. The Fabry–Perot arrangement of FSS sheet with antenna increases the gain & directivity without modifying the antenna profile or increasing radiation patch size. The maximum measured gain is 9.8 dB & 7.2 dB with the Reflection coefficient (S11) of −35 dB & −15 dB at 910 MHz & 950 MHz respectively. The proposed antenna of dimension 40 mm by 40 mm is fabricated & tested for further experimental validation with measured read range longer than 8 m. The novelty in proposed work is integration of FSS with passive UHF RFID technology which can be effectively used in wireless RFID applications for improved read range, higher gain, lower power consumption & better immunity within the resonating band. The proposed antenna effectively isolates out-of-band frequencies from in-band frequencies over a required bandwidth reducing Electromagnetic Interference (EMI) for UHF RFID applications.
ACKNOWLEDGEMENT
This research work is conducted as a part of Independent Study & Research (ISR) for the award of Ph.D. degree & for the requirement of research project INT/RUS/RFBR/P-341 funded by DST, New Delhi.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Shivani Sharma
Shivani Sharma is currently working in the RF and Microwave Lab at Department of Electronics and Communication Engineering, Amity University, Noida, Uttar Pradesh, India for PhD. Earlier served as an assistant professor at GNIT affiliated to GGSIPU in year 2018–2019 & completed MTech (ECE) from USICT, GGSIPU, Delhi, India in year 2018. Her research areas of interest include RF structures & antenna propagation.
Malay Ranjan Tripathy
Malay Ranjan Tripathy (Senior Member IEEE and URSI), professor at Department of Electronics and Communication Engineering, Amity University Noida, Uttar Pradesh, India. He completed his postdoc for two years at CNRS LPCE, Orleans, France & PhD (microwave superconductivity) University of Delhi, India. He served as visiting researcher at University of Gavle, Sweden in 2015 and 2016. He is the chair, IEEE APS and CRFID Delhi chapter, India. He was the general chair of IEEE International Conference on RFID-TA 2021. Received teaching excellence 2013 Award at Indo-global Education Summit, New Delhi. He is the reviewer of IEEE and other SCI-indexed journals. Present research interests include antennas, RF designs, SDR, circuits, systems, artificial intelligence, machine learning, IoT, and physical layers. Email: [email protected]
Ajay Kumar Sharma
Ajay Kumar Sharma is presently working as senior deputy general manager (DGM) in the Antenna Strategic Business Unit (SBU) of Bharat Electronics Limited, Ghaziabad, UP India. He completed MTech (ECE) from the University of Roorkee, Uttar Pradesh, India in the year 1998 & obtained PhD from USICT, GGSIPU, New Delhi, India in the year 2016. His areas of specialization include antenna systems for radars & satellite communication. Email: [email protected]