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Novel Multimode Planar Absorbing Structure

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2 Author(s)
Milan Prihoda ; Department of Electromagnetic Field, Czech Technical University, Prague ; Karel Hoffmann

A block of absorbing material covered by a conductive plate and placed on a microstrip line forms a structure which makes possible multimode propagation. The detailed modal analysis of the structure is presented. Based on the analysis a new planar multi-interference structure which utilizes interferences between excited modes is presented. The mentioned structure have extended bandwidth of attenuation. Experimental results and 3-D electromagnetic simulations up to 18 GHz are presented.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:23 ,  Issue: 1 )