| 摘要 |
PURPOSE:To make it possible to improve generated electric field component of an electromagnetic wave with a small-sized noise resistance test equipment, by connecting a conical antenna in parallel to the opposite ends of a fuse- element through a tuning coil. CONSTITUTION:An insulating tube 21 is disposed on the upper part of a metal cylinder 1, a tuning coil 20 is wound spirally on the insulating tube 21 and the opposite ends of the coil are connected conductively to the metal cylinder 1 and a conical antenna 27 disposed above. The conical antenna 27 has a specific frequency characteristic according to the shape and dimensions thereof and can output an electromagnetic wave of a frequency of a maximum gain by regulating it so that the coil 20 and the conical antenna 27 may resonate. Thereby, a high electric field can be generated around it. Moreover, the generated electric field can be increased further by interposing a distributed contact line between a fuse-element 15 and the conical antenna 27. |
