| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a leakage coaxial cable that is high in radiation efficiency and excellent in radiation characteristics. <P>SOLUTION: The leakage coaxial cable 1 is composed as follows. An external conductor 5 corrugatedly formed into a bellows shape is arranged on the outer periphery of an insulator 3 in which an internal conductor 2 is insertingly held at its center. Radio wave leakage holes 7 are formed in parallel with each other in the external conductor 5 at prescribed pitches in the longitudinal direction of the cable. The width w, in the longitudinal direction of the cable, of each radio-wave leakage hole 7 and the corrugation pitch p in the longitudinal direction of the cable in the external conductor 5 are set to have a relationship of 1p<w<10p. <P>COPYRIGHT: (C)2008,JPO&INPIT |
