The present invention relates to a coaxial cable structure for equalizing on the propagation loss and propagation attenuation. The present invention, in the structure of a coaxial cable made uniform for the propagation loss and propagation attenuation in the coaxial cable body (1) at the messenger cable (2), a coaxial cable body 1 is an inner conductor 10, a dielectric (20 ), equidistantly jimyeo external conductor 30, and the first outer shell (50a) is made by stacking form a concentric circle in order, an outer conductor (30) has a group of radial slot unit (40) along the center line in the longitudinal direction arrangement is, each radiating slot unit 40 is upward radiation slots (41u) and the downstream radiation slots (42u) is formed in a symmetrical shape in the direction of the length, the upward radiation slots (41u) is on the "g" for the radio wave leakage there is region is formed in the structure connected by varying the length, in the refracted ray-like in the upper area of ​​the first refractive region (u1), a second refractive region (u3), and the first refractive refracted line-shaped area located at the bottom of area (u1) and second refractive region (u3) of and separated by a central area (u2) for connecting the refractive region, the coaxial cable body 1, the first refractive zone width on the horizontal and on which to base the diameter measurement of the (u1) is d1, and the second refractive zone (u2) is d2 of the case, the length relationship d1 between d1 and d2: d2 is 1.3: 1, and the first refractive region (u1) and second refractive region (u3) of β ° that corresponds to the central angle of refraction is normal can be the basis for measuring the diameter of 123 to 125 formed the road, the coaxial cable body with a first refractive region (u1) and second refractive region (u3), each of the two refracted area and the angle of α ° is formed of 28.5 to 27.5 degrees, the coaxial cable body (1) longitudinally to a relative, a first refractive region (u1) and h1 height of both ends on the both sides of the refractive regions constituting the, the 2 is a refractive region (u3) h2 the height of both sides on an end region constituting the refraction, when the total height ht of the upstream radiation slots (41u), h1: h2: ht 1.2: is formed in a 3.6: 1.
Thereby, the communication quality is improved through uniform about the propagation loss and leakage during decay and provides an effect of improving the ability to send and receive signals and data.