active antenna

简明释义

有源天线

英英释义

例句

1.For drone applications, an active antenna 有源天线 is essential for reliable data transmission.

对于无人机应用，有源天线对于可靠的数据传输至关重要。

2.The active antenna 有源天线 technology allows for better performance in mobile communications.

有源天线技术在移动通信中允许更好的性能。

3.The new satellite communication system uses an active antenna 有源天线 to enhance signal quality.

新的卫星通信系统使用有源天线来提高信号质量。

4.Engineers installed an active antenna 有源天线 on the roof to improve the Wi-Fi coverage.

工程师在屋顶上安装了有源天线以改善Wi-Fi覆盖范围。

5.In urban areas, an active antenna 有源天线 can help overcome interference from buildings.

在城市地区，有源天线可以帮助克服建筑物的干扰。

作文

In the world of telecommunications, the term active antenna refers to a type of antenna that incorporates active electronic components to enhance its performance. Unlike passive antennas, which merely receive and transmit signals without any amplification, active antenna systems use amplifiers and other circuitry to improve signal quality and extend range. This technology has revolutionized the way we communicate, especially in areas where signal strength is weak or obstructed by physical barriers. The primary advantage of an active antenna is its ability to boost weak signals. For instance, in urban environments filled with tall buildings and other obstacles, traditional passive antennas often struggle to receive clear signals. By integrating amplifiers directly into the antenna design, active antennas can significantly improve reception even in challenging conditions. This is particularly important for mobile phone networks, where maintaining a strong connection is crucial for user satisfaction.Moreover, active antennas are not only beneficial for improving reception but also for reducing interference. In crowded frequency environments, such as those found in large cities, multiple signals can overlap and cause distortion. The built-in electronics of an active antenna can help filter out unwanted noise, allowing for clearer communication. This is essential for applications like emergency services, where reliable communication can be a matter of life and death.Another notable feature of active antennas is their ability to be remotely powered and controlled. This means that they can be installed in locations that are difficult to access, such as on rooftops or remote towers, without the need for extensive wiring. The convenience of remote operation allows for easier maintenance and upgrades, making active antennas a popular choice for modern telecommunications infrastructure.Despite their advantages, there are some challenges associated with active antennas. One major concern is the increased complexity and cost compared to passive designs. The additional electronic components require careful design and manufacturing processes, which can drive up the price. Additionally, the reliance on power sources means that if there is a power failure, the active antenna may become non-functional, whereas passive antennas would continue to operate.In conclusion, the development of active antennas marks a significant advancement in the field of telecommunications. Their ability to amplify signals, reduce interference, and operate remotely makes them an invaluable tool in today’s communication landscape. As technology continues to evolve, we can expect to see even more innovative uses for active antennas, helping to bridge the gap in connectivity and enhance our daily communication experiences.

在电信领域，术语主动天线指的是一种结合了主动电子元件以增强其性能的天线。与被动天线不同，被动天线仅仅接收和发送信号而没有任何放大，主动天线系统则使用放大器和其他电路来改善信号质量并延长范围。这项技术彻底改变了我们沟通的方式，尤其是在信号强度较弱或受到物理障碍阻碍的地区。主动天线的主要优势在于其增强微弱信号的能力。例如，在充满高楼大厦和其他障碍物的城市环境中，传统的被动天线通常难以接收到清晰的信号。通过将放大器直接集成到天线设计中，主动天线可以显著改善即使在困难条件下的接收。这对于移动电话网络尤为重要，因为保持强连接对用户满意度至关重要。此外，主动天线不仅有利于改善接收，还能减少干扰。在嘈杂的频率环境中，例如大型城市中，多个信号可能会重叠并导致失真。主动天线内置的电子设备可以帮助过滤掉不必要的噪音，从而实现更清晰的通信。这对于紧急服务等应用至关重要，因为可靠的通信可能关系到生死。主动天线的另一个显著特点是能够远程供电和控制。这意味着它们可以安装在难以接近的位置，如屋顶或远程塔上，而无需大量布线。远程操作的便利性使得维护和升级变得更加容易，这使得主动天线成为现代电信基础设施的热门选择。尽管有其优势，但与主动天线相关的一些挑战也不容忽视。一个主要问题是与被动设计相比，复杂性和成本的增加。额外的电子元件需要仔细的设计和制造过程，这可能会提高价格。此外，依赖电源意味着如果发生停电，主动天线可能会变得无法使用，而被动天线仍然可以继续工作。总之，主动天线的发展标志着电信领域的重大进步。它们增强信号、减少干扰和远程操作的能力使其成为当今通信环境中不可或缺的工具。随着技术的不断发展，我们可以期待看到更多创新的主动天线用途，帮助弥补连接差距，并增强我们的日常通信体验。