| 摘要 |
PURPOSE:To improve the matching with a feeder of one-side short-circuit microstrip antenna (SMSA) with a parasitic element showing a constant impedance by providing a conductive projection on a ground conductor plate opposite to a radiation conductor plate in the one-side short-circuit microstrip antenna with the parasitic element. CONSTITUTION:A ground conductor plate 1 and the 2nd radiation conductor plate 3 are arranged in opposition to the 1st radiation conductor plate 2 to be fed so as to clip the radiation conductor plate 2. Then the radiation conductor plates 2, 3 are connected to the ground conductor plate 1 by the connection conductor plate 4. Further, a conductive projection 5 projected to the 1st radiation conductor plate 2 connected to the ground conductor plate 1 is provided. In the titled antenna, the radiation conductor plate 2, a parasitic element 3 and their interval are selected to be in a prescribed size and the size and position of the conductive projection 5 are selected properly so as to realize the broad band antenna well matched to a specific impedance system.
|
