Title :
Novel Multimode Planar Absorbing Structure
Author :
Prihoda, M. ; Hoffmann, Karel
Author_Institution :
Dept. of Electromagn. Field, Czech Tech. Univ., Prague, Czech Republic
Abstract :
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.
Keywords :
absorbing media; electrical conductivity; electromagnetic wave absorption; microstrip lines; microwave materials; modal analysis; 3D electromagnetic simulation; absorbing material; attenuation bandwidth; conductive plate; excited mode; microstrip line; modal analysis; multimode planar absorbing structure; multimode propagation; planar multiinterference structure; Attenuation; Energy measurement; Microstrip; Microwave circuits; Microwave propagation; Substrates; Wireless communication; Absorption; attenuator; microwave measurement; multimode propagation; planar line; sliding load;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2012.2234093
