Title :
Design of a single layer broadband microwave absorber using cobalt-substituted barium hexagonal ferrite
Author :
Gupta, S.C. ; Agrawal, Nawal K. ; Kumar, Chanchal
Author_Institution :
Dept. of Electron. & Comput. Eng., Roorkee Univ., India
Abstract :
The authors present a theoretical and practical design of a single-layer microwave absorber which exhibits broadband characteristics for both normal and oblique incidence. A single-layer absorber was designed, fabricated, and tested at normal and oblique incidence. Experimentally, 8-dB absorption has been obtained both at normal and oblique incidence. It is found that the theoretical and practical results agree very closely.<>
Keywords :
barium compounds; electromagnetic wave absorption; ferrite devices; ferrites; 1 to 18 GHz; 8 dB; BaFe/sub 12-x/Co/sub x/O/sub 19/; SHF; UHF; broadband characteristics; broadband microwave absorber; normal incidence; oblique incidence; practical design; practical results; single-layer microwave absorber; theoretical results; Bandwidth; Barium; Electromagnetic wave absorption; Ferrites; Large-scale systems; Permeability; Reflection; Resonance; Sheet materials; Strontium;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.187976
