extremely high frequency

简明释义

极高频极高频极高频

英英释义

例句

1.In aviation, extremely high frequency 极高频 radios are used for air traffic control.

在航空领域，极高频 extremely high frequency无线电用于空中交通管制。

2.Satellite communications often operate in the extremely high frequency 极高频 range to ensure clear signals.

卫星通信通常在极高频 extremely high frequency范围内运行，以确保信号清晰。

3.The military uses the band of extremely high frequency 极高频 for secure communications.

军方使用极高频 extremely high frequency波段进行安全通信。

4.The extremely high frequency 极高频 spectrum is crucial for modern telecommunications.

对于现代电信来说，极高频 extremely high frequency频谱至关重要。

5.Researchers are studying the effects of extremely high frequency 极高频 radiation on human health.

研究人员正在研究极高频 extremely high frequency辐射对人类健康的影响。

作文

In the world of telecommunications, understanding the various frequency bands is crucial for effective communication. One such band is known as extremely high frequency, or EHF, which ranges from 30 GHz to 300 GHz. This frequency range is significant for several reasons, primarily due to its applications in advanced technologies and its unique propagation characteristics. The extremely high frequency (中文释义: 极高频) band is utilized in various fields, including satellite communications, radar systems, and even in some forms of wireless networking.The advantages of using extremely high frequency signals are many. First and foremost, they can carry a vast amount of data at incredibly high speeds. This makes them ideal for applications that require high bandwidth, such as video conferencing and streaming services. Furthermore, the small wavelengths associated with EHF allow for more compact antennas, which can be a significant advantage in mobile devices and other compact technologies.However, there are also challenges associated with extremely high frequency communications. One of the main issues is that higher frequencies tend to have a shorter range and are more susceptible to obstacles like buildings and trees. This means that while EHF can deliver high-speed data, the coverage area may be limited compared to lower frequency bands. Consequently, network designers must carefully consider how to deploy EHF technology to maximize its effectiveness while minimizing potential interference.Another important aspect of extremely high frequency is its role in scientific research. For instance, EHF waves are used in radio astronomy to study celestial phenomena. The high resolution offered by these frequencies allows scientists to observe distant galaxies and other astronomical events with remarkable clarity. This has led to significant advancements in our understanding of the universe.Moreover, extremely high frequency is also critical in military applications. Radar systems operating at these frequencies can detect smaller objects at greater distances, making them invaluable for surveillance and reconnaissance missions. The precision and reliability of EHF radar systems contribute significantly to national security efforts, providing real-time data that can inform strategic decisions.In conclusion, the extremely high frequency band is an essential component of modern telecommunications and scientific exploration. While it offers numerous advantages, such as high data rates and compact antenna designs, it also presents challenges that must be addressed to ensure effective communication. As technology continues to evolve, the applications of EHF will likely expand, paving the way for new innovations in various fields. Understanding the intricacies of extremely high frequency will be vital for those looking to harness its potential in the future.

在电信的世界中，理解各种频率带对于有效的通信至关重要。其中一个频段被称为极高频（EHF），其范围从30 GHz到300 GHz。这个频率范围因几个原因而显得重要，主要是由于它在先进技术中的应用以及其独特的传播特性。极高频（中文释义: 极高频）频段被广泛应用于多个领域，包括卫星通信、雷达系统，甚至某些形式的无线网络。使用极高频信号的优势有很多。首先，它们可以以极高的速度传输大量数据。这使得它们非常适合需要高带宽的应用，如视频会议和流媒体服务。此外，与EHF相关的小波长允许更紧凑的天线，这在移动设备和其他紧凑型技术中是一个显著的优势。然而，与极高频通信相关的挑战也不少。主要问题之一是，高频率往往具有较短的范围，并且对建筑物和树木等障碍物更为敏感。这意味着虽然EHF可以提供高速数据，但覆盖区域可能会比低频带有限。因此，网络设计人员必须仔细考虑如何部署EHF技术，以最大化其有效性，同时最小化潜在的干扰。极高频的另一个重要方面是它在科学研究中的作用。例如，EHF波用于射电天文学，以研究天体现象。由这些频率提供的高分辨率使科学家能够以惊人的清晰度观察遥远的星系和其他天文事件。这导致我们对宇宙理解的重大进展。此外，极高频在军事应用中也至关重要。在这些频率下运行的雷达系统能够在更远的距离上探测到更小的物体，使其在监视和侦察任务中不可或缺。EHF雷达系统的精确性和可靠性对国家安全工作贡献巨大，提供实时数据以帮助战略决策。总之，极高频频段是现代电信和科学探索的重要组成部分。虽然它提供了许多优势，如高数据速率和紧凑的天线设计，但也存在必须解决的挑战，以确保有效的通信。随着技术的不断发展，EHF的应用可能会扩展，为各个领域的新创新铺平道路。理解极高频的复杂性将对那些希望在未来利用其潜力的人至关重要。