1989 年 13 巻 55 号 p. 39-45
A method for calculating site-attenuation for vertical polarization by equivalent conversion to four-teminal networks is presented. Its theoretical values, four-terminal constants, image-impedance and propagation constants are calculated. And also hight pattern of site-attenuation, frequency characteristics of site-attenuation are shown. Change of power transmission ratio according to the load impedance is also analyzed to investigate the mismatch of impedances between feeder and receiver.