- Phase Shifters
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什麼是切換器? What is RF Switch
什麼是切換器(RF Switch) RF Switch是一種能讓射頻信號通路之切換元件。常見的有SPDT, SP4T, SP6T, SP8T…等等. 常見的有機械式與電子式。 Failsafe(不保持型) 給電不保持,或斷電發生自動復位 Latching(保持型) 僅給一次觸發供電即可維持訊號切換,若再次通電會從上一次通路位置開始工作 Normally Open 每次關機重開後,全通道不導通
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. 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 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。 […]
什麼是循環器? What is Circulators
什麼是循環器? (Circulators) 循環器是將進入其任一端口的射頻訊號,按照由靜偏磁場確定的方向順序傳入下一個端口的多端口元件。循環器是一個有單向傳輸特性的三埠器件,從1到2,從2到3和從3到1是導通的,反過來信號從2到1,從3到2和從1到3是隔離的。循環器是有數個端的非可逆器件。 參考文獻: https://kknews.cc/news/lmz9a42.html