Theory and Experiment Study of the Resonant Absorber
Shu Lv · Cailiao kexue yu gongcheng xuebao · 2006
A resonant wave absorber with EPS hollow sphare as the base material was studied in this paper.The resonant frequency and resonant wavelength of carbon black coated EPS hollow sphare absorber were deduced and its wave absorbing property was tested experimentally.The testing results show that when the carbon black content is 4% and the diameter of EPS hollow sphare is 2 mm,the wave absorbing effectiveness of the absorber can reach its optimal value,which are 40dB in lower frequency(2.4～3.85GHz) and more than 45 dB in higher frequency(8～12.5GHz).The testing of its flame retardant shows that this absorber meets the USA UL94V-1 standard well.