A STUDY OF THE RADIO LINK ATTENUATION USING DOUBLE-PASSIVE REPEATERS / ESTUDO DA ATENUAÇÃO NOS ENLACES RADIOÉLETRICOS QUE EMPREGAM SISTEMAS REPETIDORES DUPLO PASSIVOS

AUTOR(ES)
DATA DE PUBLICAÇÃO

1974

RESUMO

This theoretical study gives the propagation loss through a microwave radio relay system using doublé-passive configuration in the Fresnel zone of the exciting parabolic antenna. Two cases are treated separately: a) Plane passive repeaters with equal rectangular apertures. b) Plane passive repeaters with nonequal square apertures. Based on the results obtained for the two above cases the curves for the relative gain of a doublé-passive in the Fraunhofer region of the exciting antenna are derived and, for case b, can be checked with those by Yang2.. assuming a constant-phase, symmetrical illumination of the exciter aperture, the source field can be expressed as a function only of the radial variable: Ea = EO (1 - ar 2) where r = p/R is the normalized radial variable and (alfa) = 6.864 to produce the common 10 dB taper.

ASSUNTO(S)

repeaters gain propagacao ganho propagation repetidores

ACESSO AO ARTIGO

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