| 摘要 |
PURPOSE: The size of the part is reduced by reducing the number of microstrip resonator is the part of the communications devices. CONSTITUTION: The ring(10) comprises the opening(12) having opened one side. The first couple the line(20) and the second couple the line(30) are formed outside ring into the ring type of quadrant. The first couple the line and the second couple the line form ring and concentric circle. The first couple the line comprises the first port(24) and the first stub(22). |
