In order to improve precision of noninvasive blood glucose detection based on radio frequency signal in lower frequency band

investigate impact of circular

square

spiral electrodes on S11 parameter respectively in simulation of three concentrations of glucose solution

so as to further analyze influence of electrode shape on blood glucose detection precision.Study shows that electrode shape has a certain relationship with blood glucose detection precision

besides

compared with square and circular electrodes

the measured amplitude of S11 parameter of spiral electrode is the smallest at resonant point

while blood glucose detection precision is the highest

so spiral electrode is more suitable for noninvasive blood glucose detection.