| 摘要 |
PROBLEM TO BE SOLVED: To provide an NRD guide L type antenna element that cannot be damaged mechanically easily and has a small number of components. SOLUTION: When a high-frequency signal is inputted to the long section of a dielectric strip 32 in an L shape, the signal is propagated from the long section to a short section, is reflected on a slope 32cc, and is radiated from an opening 33a of a second metal plate 33 to the normal direction of the second metal plate 33. As a result, a tip section 32aa being exposed to the outside of the dielectric strip 32 can be reduced for miniaturization and improving mechanical strength. Also, the dielectric strip is simple, namely in an L shape so that its costs are reduced and it can be manufactured easily, thus providing the NRD guide L-type antenna element that cannot be damaged mechanically easily and has a small number of components. |
