TY - JOUR
T1 - Ultra-thin absorbers comprised by cascaded high-impedance and frequency selective surfaces
AU - Panaretos, Anastasios H.
AU - Brocker, Donovan
AU - Werner, Douglas Henry
PY - 2015/12/1
Y1 - 2015/12/1
N2 - The theoretical basis for an ultra-thin broadband absorber is established which is comprised of a mushroom-type high impedance surface (HIS) and a pixelized frequency selective surface (FSS). The latter is engineered to exhibit a prescribed series RLC circuit response and it is placed at an electrically small distance above the HIS. Through a transmission line analysis, it is demonstrated that the admittances of the two structures cancel each other, resulting in an almost zero input reactance and a resistance that fluctuates around that of free space within the frequency range of interest. The resulting structure has a total thickness that does not exceed 2 mm while a - 10dB return loss is achieved for normal incidence from 9-13GHz.
AB - The theoretical basis for an ultra-thin broadband absorber is established which is comprised of a mushroom-type high impedance surface (HIS) and a pixelized frequency selective surface (FSS). The latter is engineered to exhibit a prescribed series RLC circuit response and it is placed at an electrically small distance above the HIS. Through a transmission line analysis, it is demonstrated that the admittances of the two structures cancel each other, resulting in an almost zero input reactance and a resistance that fluctuates around that of free space within the frequency range of interest. The resulting structure has a total thickness that does not exceed 2 mm while a - 10dB return loss is achieved for normal incidence from 9-13GHz.
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U2 - 10.1109/LAWP.2015.2390145
DO - 10.1109/LAWP.2015.2390145
M3 - Article
AN - SCOPUS:84929309794
SN - 1536-1225
VL - 14
SP - 1089
EP - 1092
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7004802
ER -