extremely high frequency

简明释义

极高频(30

英英释义

例句

1.The extremely high frequency 极高频 radar systems can detect small objects in the air.

该极高频 extremely high frequency 雷达系统能够探测空中的小物体。

2.Scientists use extremely high frequency 极高频 waves to study atmospheric phenomena.

科学家使用极高频 extremely high frequency 波来研究大气现象。

3.Television broadcasts in some regions utilize extremely high frequency 极高频 channels.

某些地区的电视广播利用极高频 extremely high frequency 频道。

4.The military relies on extremely high frequency 极高频 signals for secure communications.

军方依赖于极高频 extremely high frequency 信号进行安全通信。

5.The radio communication system operates on the extremely high frequency 极高频 bands, allowing for clear transmission over long distances.

该无线通信系统在极高频 extremely high frequency 波段上运行，允许长距离清晰传输。

作文

In the realm of telecommunications and radio frequency, the term extremely high frequency refers to a specific range of electromagnetic waves that fall between 30 gigahertz (GHz) and 300 GHz. This frequency band is essential for various modern technologies, including satellite communications, radar systems, and wireless networks. Understanding the significance of extremely high frequency is crucial for anyone interested in the field of electronics and communication. The extremely high frequency band is known for its unique properties. For instance, signals transmitted at these frequencies can carry large amounts of data, making them ideal for high-speed internet and advanced communication systems. Moreover, because of their shorter wavelengths, extremely high frequency signals can be highly directional. This means they can be focused into narrow beams, allowing for more efficient transmission and reception of data.One of the primary applications of extremely high frequency is in satellite communication. Satellites operating in this frequency range can transmit signals over vast distances with minimal interference. This capability is particularly beneficial for global positioning systems (GPS) and weather forecasting satellites, which rely on accurate data transmission to function effectively. Additionally, the use of extremely high frequency in mobile telecommunications has enabled the development of 5G networks, which promise faster download speeds and improved connectivity.Another significant application of extremely high frequency is in radar technology. Military and civilian radar systems utilize these frequencies to detect and track objects, such as aircraft and ships. The high resolution offered by extremely high frequency radar allows for precise measurements, which are critical for navigation and surveillance purposes. Furthermore, this technology plays a vital role in air traffic control, ensuring the safety and efficiency of air travel.Despite its advantages, there are challenges associated with the use of extremely high frequency. One major concern is the limited range of these signals. Due to their higher frequencies, they are more susceptible to atmospheric absorption and scattering. This means that extremely high frequency signals can lose strength over long distances, requiring the use of repeaters or additional infrastructure to maintain signal quality. Additionally, the propagation characteristics of extremely high frequency waves make them less effective in penetrating obstacles like buildings and trees, which can limit their effectiveness in urban environments.In conclusion, the term extremely high frequency encompasses a vital segment of the electromagnetic spectrum with numerous applications in modern technology. From enabling high-speed internet access to enhancing radar systems, the impact of extremely high frequency is profound. As technology continues to evolve, the importance of understanding and utilizing this frequency range will only grow, paving the way for innovations that will shape our future communication landscape.

在电信和射频领域，术语极高频指的是介于30吉赫（GHz）和300 GHz之间的特定电磁波频率范围。这个频段对于各种现代技术至关重要，包括卫星通信、雷达系统和无线网络。理解极高频的重要性对任何对电子和通信领域感兴趣的人来说都是至关重要的。极高频频段以其独特的特性而闻名。例如，在这些频率下传输的信号可以承载大量数据，使其非常适合高速互联网和先进的通信系统。此外，由于其较短的波长，极高频信号可以高度定向。这意味着它们可以聚焦成窄束，从而实现更高效的数据传输和接收。极高频的主要应用之一是卫星通信。在这个频率范围内运行的卫星可以在极远的距离上以最小的干扰传输信号。这种能力对于全球定位系统（GPS）和天气预报卫星尤其重要，这些卫星依赖于准确的数据传输来有效工作。此外，极高频在移动通信中的应用促进了5G网络的发展，这承诺提供更快的下载速度和更好的连接性。极高频的另一个重要应用是雷达技术。军事和民用雷达系统利用这些频率来检测和跟踪物体，如飞机和船只。极高频雷达提供的高分辨率允许精确测量，这对于导航和监视目的至关重要。此外，这项技术在空中交通控制中发挥着重要作用，确保航空旅行的安全和效率。尽管有其优点，但使用极高频也面临挑战。一个主要问题是这些信号的传播范围有限。由于其较高的频率，它们更容易受到大气吸收和散射的影响。这意味着极高频信号在长距离上传输时可能会减弱，因此需要使用中继器或额外的基础设施来保持信号质量。此外，极高频波的传播特性使其在穿透建筑物和树木等障碍物方面效果较差，这可能限制其在城市环境中的有效性。总之，术语极高频涵盖了电磁频谱中一个重要的部分，具有众多现代技术应用。从实现高速互联网接入到增强雷达系统，极高频的影响深远。随着技术的不断发展，理解和利用这一频率范围的重要性将愈加突出，为塑造我们未来的通信格局铺平道路。