matched impedance

简明释义

匹配阻抗

英英释义

例句

1.For optimal performance, the transmitter and receiver must have matched impedance 匹配阻抗.

为了获得最佳性能，发射器和接收器必须具有匹配阻抗匹配阻抗。

2.The technician measured the circuit to verify that it maintained matched impedance 匹配阻抗 throughout.

技术员测量电路以验证其在整个过程中保持匹配阻抗匹配阻抗。

3.Using cables with matched impedance 匹配阻抗 helps to reduce signal reflections.

使用具有匹配阻抗匹配阻抗的电缆有助于减少信号反射。

4.In RF design, achieving matched impedance 匹配阻抗 is crucial for maximizing power transfer.

在射频设计中，实现匹配阻抗匹配阻抗对于最大化功率传输至关重要。

5.The audio engineer ensured that the speakers had matched impedance 匹配阻抗 to prevent distortion.

音频工程师确保扬声器具有匹配阻抗匹配阻抗以防止失真。

作文

In the world of electronics and telecommunications, the concept of matched impedance plays a crucial role in ensuring efficient signal transmission. Impedance, which is a measure of how much a circuit resists the flow of electrical current, can significantly affect the performance of electronic devices. When two components in a circuit have the same impedance, they are said to be matched impedance (匹配阻抗). This matching is essential because it minimizes reflections of the signal at the interface between different components, allowing for maximum power transfer and optimal performance.The importance of matched impedance can be illustrated in various applications, such as in radio frequency (RF) circuits. In RF applications, mismatched impedance can lead to signal loss and distortion, which can severely impact the quality of communication. For instance, if an antenna is connected to a transmitter with mismatched impedance, part of the transmitted signal may reflect back into the transmitter rather than being radiated into free space. This not only reduces the efficiency of the system but can also damage the transmitter over time.To achieve matched impedance, engineers often use matching networks, which can consist of capacitors, inductors, or transformers. These components are strategically placed in the circuit to adjust the overall impedance to match that of the source or load. The design of these networks requires a deep understanding of both the frequency response of the components involved and the desired operational conditions of the circuit.Another area where matched impedance is vital is in audio systems. When connecting speakers to amplifiers, achieving matched impedance ensures that the amplifier can drive the speakers effectively without causing distortion or damage. An amplifier with a low output impedance driving a speaker with high input impedance can lead to poor sound quality and reduced dynamic range. Thus, audio engineers pay close attention to impedance matching to deliver high-fidelity sound.Moreover, matched impedance is not limited to just passive components; it also applies to active components like transistors. In amplifier design, for example, the input and output stages must be properly matched to ensure that the amplifier operates efficiently across its intended frequency range. Failure to do so can result in increased noise levels and reduced gain, ultimately affecting the overall performance of the device.In conclusion, the concept of matched impedance (匹配阻抗) is fundamental in the fields of electronics and telecommunications. It ensures that signals are transmitted efficiently, minimizing reflections and maximizing power transfer. Whether in RF applications, audio systems, or amplifier design, achieving matched impedance is critical for optimal performance. As technology continues to evolve, the importance of understanding and implementing matched impedance will remain a key consideration for engineers and designers alike.