Microstrip disk antennas, Part II: The problem of surface wave radiation by dielectric truncation
作者： S.D.A. Fonseca , A. Giarola
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摘要: The far zone fields radiated from a microstrip disk antenna with truncated dielectric layer were obtained using the cavity model magnetic side walls, dyadic Green's functions are stratified media, and integral representation analysis of in complex plane. It is shown that truncation responsible for ondulations observed radiation patterns these antennas they result interference space wave those as consequence incidence surface into region. suggested this problem may be alleviated by truncating possible elements lower values thickness to radius ratios d/a , relative permittivities \epsilon_{r} .
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