Title :
Application of microwave absorbers in multilayer antenna arrays
Author :
Bozmarov, J. ; Traykov, R. ; Peshlov, V. ; Dank, P.
Author_Institution :
Sky Gate BG, Sofia, Bulgaria
Abstract :
Some practical problems concerning the application of microwave absorbers in multilayer antenna arrays are discussed. Several examples are described for illustration of the suppression of parasitic influences and excitations in the antenna feeds: resonance attenuation and phase delay in meandered microstrip lines; parallel-plate modes in stripline feeds, resonance coupling between different layers etc. The utilization of absorbing microwave coating for realization of simple attenuators/phase shifters, as well as planar loads for distributing components in antenna feeds are additionally considered.
Keywords :
antenna feeds; attenuators; delays; electromagnetic wave absorption; inhomogeneous media; microstrip lines; microwave antenna arrays; microwave phase shifters; antenna feeds; attenuators/phase shifters; meandered microstrip lines; microwave absorbers; microwave coating; multilayer antenna arrays; parallel-plate modes; parasitic influence suppression; phase delay; planar loads; resonance attenuation; resonance coupling; stripline feeds; Antenna feeds; Attenuation; Coatings; Delay; Microstrip antenna arrays; Microstrip antennas; Microwave antenna arrays; Nonhomogeneous media; Resonance; Stripline;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on
Print_ISBN :
83-906662-5-1
DOI :
10.1109/MIKON.2002.1017986
