A wireless passive pressure sensor with high sensitivity

TL;DR

This paper presents a high-sensitivity wireless pressure sensor with optimized design and a novel simulation method, capable of measuring pressures up to 1.5MPa with enhanced accuracy.

Contribution

It introduces a wireless passive pressure sensor with optimized configuration and a new simulation approach that improves pressure deformation modeling accuracy.

Findings

Sensitivity of 187kHz/kPa achieved

Able to measure pressures up to 1.5MPa

Simulation accuracy improved threefold

Abstract

A high-sensitivity wireless pressure sensor with active processing structure designed on the dielectric substrate has been present and evaluated in this paper. The sensor configuration has been optimized by computer-aided design to achieve highest sensitivity and maximum working range for a given dimension. With the average sensitivity of 187kHz/kPa, the proposed pressure sensor is equipped with the ability to measure pressure loaded up to 1.5MPa under room temperature. Additionally, a novel simulation method applied on pressure related design is proposed in this article, with the accuracy reaching threefold enhancement, filling the blank of electromagnetic simulation of pressure deformation. Other characteristics of the devices have been investigated and are presented.