Title :
Design of multi-layers absorbers for low frequency applications
Author :
Fu, Jia-Hui ; Wu, Qun ; Zhang, Shao-Qing ; Zhang, Kuang ; Meng, Fan-Yi
Author_Institution :
Microwave Eng. Dept., Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper we present the design of a multilayer absorber designed to perform over a wide frequency band, starting at relatively low frequencies. We design an absorber comprising of 20 layers, in which the material parameters are tapered in an exponential manner. In addition, the absorber itself is physically tapered at an angle so that it resembles a truncated pyramid. It is shown that the absorber performs well in the frequency range of 0.1MHz-2GHz.
Keywords :
absorbing media; anechoic chambers (electromagnetic); electromagnetic compatibility; anechoic chambers; electromagnetic compatibility testing; frequency 0.1 MHz to 2 GHz; lossy absorber; low frequency applications; multilayers absorbers design; truncated pyramid; wide frequency band; Boundary conditions; Conducting materials; Dielectric losses; Electromagnetic compatibility; Finite difference methods; Frequency selective surfaces; Magnetic materials; Reflection; Slabs; Time domain analysis;
Conference_Titel :
Electromagnetic Compatibility (APEMC), 2010 Asia-Pacific Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5621-5
DOI :
10.1109/APEMC.2010.5475478
