| 摘要 |
PURPOSE:To obtain a miniature power distributor having small loss and excellent isolation characteristics by connecting an input terminal to each distribution terminal via a distribution constant line that has a prescribed impedance and the electrical length set at about 1/4 wavelength in terms of the using frequency, connecting the adjacent distribution terminals with the resistance having the prescribed value and then connecting these resistances by a metallic line with prescribed distance. CONSTITUTION:An input terminal 1 is connected to distribution terminals 5-8 respectively by means of a distribution constant line 20 having its characteristic impedance ZO and the electrical length set at about 1/4 wavelength in terms of the using frequency. Then the resistances 21 and 22 of resistance values RA and BB are loaded between terminals 5 and 6 and terminals 7 and 8 respectively. Furthermore two resistance 22 are loaded between terminals 6 and 7, and metallic films 23-25 are formed at each junction of resistances 21 and 22, 22 and 22 and 22 and 21 respectively. These films 23-25 are connected to each other with a metallic line 26. |
