| 摘要 |
PURPOSE:To perform impedance transformation in a circuit at the same time without using any transformer by setting admittances which are connected as loads to an input and an output terminal to mutually different values, and specifying characteristic impedance values of the 1st- the 4th distributed constant lines according to specific equations. CONSTITUTION:Loads y1 and y2 are connected to the 1st input terminal 1l and an output terminal 10 and loads y3 and y4 are connected to the 2nd input terminal 2l and an output terminal 20. When those load admittances y1-y4 differ in value and a coefficient of power distribution is (k), impedance Zin is 1 by using impedance values Z1=(1/(1+k)y1y2)1/2, Z2=(1/(1+k)y1y3)1/2, Z3= (1/ky2y3)1/2, and Z4=(1/ky2y3)1/2. Consequently, no electric power is transmitted to the input terminal 2l and electric power is is distributed to the terminals 10 and 20 according to the coefficient (k) of distribution. Therefore, when load impedance is different from power source impedance, the electric power is distributed by this impedance hybrid. |
