摘要 : A spiral leaky coaxial cable is being used as an antenna for the broadcasting such as expressway radio equipment in Japan. The cable laying is expected to work for the fulfillment of the road information from now on, too. Low coup... 展开 A spiral leaky coaxial cable is being used as an antenna for the broadcasting such as expressway radio equipment in Japan. The cable laying is expected to work for the fulfillment of the road information from now on, too. Low coupling loss type spiral leaky coaxial cable is developed, and this report shows the result that a field experiment was done for the purpose of the construction landscape of the cable and the improvement of the electric wave receiving conditions. 收起