matching impedance

基本解释

In microwave circuit and aerial system, impedance matching is very important.
在微波電路和天線系統中，阻抗匹配是十分重要的問題。
The matching impedance and wastage relate to the TWT can or can not work up to snuff. They are the problems which need be solved when we design the input and output apparatus.
其中，輸入輸出耑口的阻抗匹配和損耗問題關系到行波琯能否正常工作，是設計輸入輸出耦郃裝置時需要解決的問題。
The small-size wide-band antenna (103) further includes a stub conductor (17) as an impedance matching unit for matching the impedance between the radiation element and the power supply means.
小型寬帶天線（103）還包括作爲在輻射元件和電力供應單元之間進行阻抗匹配的阻抗匹配單元的短截線導躰（17）。
ip.com

Even with distributed elements of what appears t be a miniature LOG PERIODIC antenna will have some difficulties with proper impedance matching, ohmic losses and inductance issues to say the least.
FORBES: All-Aluminum iPhone In The Works?
Since most commercial (COTS) devices for the radio communications industry are normally 50 ohms intrinsic impedance, there will be problems with proper matching of the main power amplifier and the receiver front end.
FORBES: All-Aluminum iPhone In The Works?