29.5 A Sub-Gram Individual Plant Stress Sensor Tag for Smart Farming

Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference 2026

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Authors: Daiki Nitto, Keishi Yanase, Yui Fujisawa, Jun Shiomi, Yoshihiro Midoh, Takuya Wadatsumi, Makoto Nagata, Ahmet Öncü, Constantine Sideris, Chetphilin Suriyasak, Yushi Ishibashi, Noriyuki Miura
DOI: 10.1109/isscc49663.2026.11409026
Cited by: 0
References: 14

Abstract

This paper presents a 0.62 g light-weight battery-less sensor tag for continuous monitoring of plant stress. A wireless link at 920 MHz powers the tag for in-vivo measuring pH in the plant as a key stress indicator. The pH data are backscattered to the link through an XOR- based multiplexer, enabling a single miniature antenna to establish simultaneous power and data link over 80 cm distance. More than 30 -days in-vivo plant stress monitoring was successfully demonstrated for future smart farming.

Fields of Study & Subjects

Smart Agriculture and AI Energy Harvesting in Wireless Networks Wireless Body Area Networks

Publication details

Journal / source
Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
Pages
506–508
Publication date
15 February 2026
Language
EN