什麼是功率分配器? What is Power Divider
什麼是功率分配器?(Power Divider)
功率分配器是射頻電路中較常見的無源元件。常見名稱為Power Divider與Power Splitter.
A power divider is a common passive component in RF circuits, also known as power divider and power splitter.
- Power Divider:
每個埠均串接一個667歐姆的電阻，所以不管從Power Divider的任一埠看進去，其阻抗都是50歐姆，是沒有方向性的一個元件。
Power Divider: Each port is connected in series with a 667-ohm resistor, regardless of which port you look into the power divider, the impedance is 50 ohms. It is a non-directional component.
- Power Splitter:
只有輸出的兩個埠上面各別串接一個50歐姆的電阻，輸入埠沒有電阻，所以只有由輸入埠看進去的阻抗會是50歐姆，而由輸出埠看進去的阻抗會是33歐姆。
Power Splitter: Only the two output ports each have a 50 ohm resistor, while the input port does not have a resistor. Therefore, looking into the input port is 50 ohms impedance, whereas looking into the output port is 33 ohms impedance.
