Novel embedded passives resistor grid network based wideband radar absorber

A novel three-layer Jaumann absorber (JA) with a measured radar reflectivity of -10 dB (minimum) from 2 to 14 GHz. is reported in this paper. The panel JA is analyzed using transmission line model and design curves are drawn in matlab. The JA design is analyzed using HFSS v15 software. The three space cloths which form the resistive layers of JA are designed using innovative concept of embedded passives (EP) resistor grid networks on infinitesimally thin (thickness = 5 mils) dielectric substrates and are developed as PCBs using conventional photolithographic technology. The prototype JA is developed as panel of size 280 × 280 mm. The thickness of JA is 28.5 mm and the weight is 208 gm. Monostatic radar cross section (RCS) measurements are carried out on JA in microwave anechoic chamber. Experimental results match closely with predicted and simulation results.