Title : ( Design and Implementation of SIW Cavity Oscillators for Humidity Sensing Applications )
Authors: Ehsan Moshir , Mojtaba Joodaki ,
Full TextAbstract
This paper presents the design and implementation of an oscillator-based humidity sensor. The designed oscillator consists of a SIW cavity resonator connected to a negative resistance oscillator. The sensing principle is based on an oscillation frequency shift caused by permittivity change of the humid air. Oscillation frequency of the oscillator is 3.917GHz and phase noise at 100 KHz offset from carrier is less than -94 dBc/Hz. Sensor\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'s output shows linear characteristics in the range of 10%-85% relative humidity. The oscillator-based sensor can be used in radio frequency applications like IOT where the sensor needs to be wireless, low cost and with a simple manufacturing process.
Keywords
, Humidity, Resonant frequency, Temperature measurement, Microwave oscillators, Frequency measurement, Sensors, Phase noise
@inproceedings{paperid:1085028,
author = {Moshir, Ehsan and Joodaki, Mojtaba},
title = {Design and Implementation of SIW Cavity Oscillators for Humidity Sensing Applications},
booktitle = {2020 28th Iranian Conference on Electrical Engineering (ICEE)},
year = {2020},
location = {تبریز, IRAN},
keywords = {Humidity; Resonant frequency; Temperature measurement; Microwave oscillators; Frequency measurement;
Sensors; Phase noise},
}
%0 Conference Proceedings
%T Design and Implementation of SIW Cavity Oscillators for Humidity Sensing Applications
%A Moshir, Ehsan
%A Joodaki, Mojtaba
%J 2020 28th Iranian Conference on Electrical Engineering (ICEE)
%D 2020
