Chipless wireless temperature sensor based on quasi-BIC resonance

Ildar Yusupov*, Dmitry Filonov, Andrey Bogdanov, Pavel Ginzburg, Mikhail V. Rybin, Alexey Slobozhanyuk*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Wireless sensors find use in many practical applications, where wired connections possess a limitation. New realms of global connectivity and data exchange among various devices suggest putting a sensor on a consumable level, where electronic circuits are not affordable from an economic standpoint. Chipless approaches, aiming to address the later issue, typically come with a penalty of performance degradation and, in many cases, is seen as a compromise solution. Here, we demonstrate a concept of the extremely sensitive temperature sensor based on the bound states in the continuum (BIC) approach. A ceramic half-cylinder above a ground plane is designed to support high quality factor supercavity modes with a strong resonant dependence on an ambient temperate. The operation of the sensor is experimentally demonstrated in a broad range of temperatures, spanning from 25 to 105 °C with an average sensitivity of 4 MHz/°C. The key element, leading to this performance, is high-quality ceramics, which allows supporting confined modes with moderately low Ohmic losses and extremely high-quality factors above 1000. High-performance chipless devices, which are capable to accommodate several functions with a single platform, open a venue to a new generation of wireless distributed sensors, where the main technological and outlay efforts are placed on an interrogation side.

Original languageEnglish
Article number193504
JournalApplied Physics Letters
Volume119
Issue number19
DOIs
StatePublished - 8 Nov 2021

Funding

FundersFunder number
Russian Foundation for Basic Research
Suzhou University of Science and Technology20-37-51011
Foundation for the Advancement of Theoretical Physics and Mathematics

    Fingerprint

    Dive into the research topics of 'Chipless wireless temperature sensor based on quasi-BIC resonance'. Together they form a unique fingerprint.

    Cite this