frequency band

简明释义

频带;波段

英英释义

例句

1.The radio station broadcasts on a specific frequency band (频率带) to reach its audience.

这家广播电台在特定的频率带（频率带）上进行广播，以便接触到其听众。

2.Satellite communications rely on specific frequency bands (频率带) to transmit signals.

卫星通信依赖特定的频率带（频率带）来传输信号。

3.Different devices operate within various frequency bands (频率带) to avoid interference.

不同的设备在各种频率带（频率带）内运行，以避免干扰。

4.Wi-Fi uses the 2.4 GHz and 5 GHz frequency bands (频率带) for wireless communication.

Wi-Fi使用2.4 GHz和5 GHz的频率带（频率带）进行无线通信。

5.The frequency band (频率带) for mobile phones varies by country.

手机的频率带（频率带）因国家而异。

作文

In the world of telecommunications and signal processing, the term frequency band refers to a specific range of frequencies within the electromagnetic spectrum. Understanding frequency band is crucial for various applications, including radio broadcasting, wireless communication, and radar systems. Each frequency band has unique characteristics that make it suitable for different types of communication. For instance, lower frequency bands, such as those used in AM radio, can travel longer distances and penetrate obstacles better than higher frequency bands. This property makes them ideal for rural broadcasting where the signal needs to cover vast areas. On the other hand, higher frequency bands, like those used in microwave communications, allow for higher data transmission rates but have limited range and penetration capabilities.Moreover, the allocation of frequency bands is tightly regulated by government agencies worldwide to prevent interference between different services. For example, the Federal Communications Commission (FCC) in the United States allocates specific frequency bands for commercial use, emergency services, and amateur radio operators. This regulation ensures that each service operates efficiently without disrupting others. The concept of frequency bands is also essential in the field of wireless networking, where different bands are used for various technologies such as Wi-Fi and Bluetooth.In recent years, the demand for bandwidth has increased significantly due to the proliferation of smart devices and high-definition streaming services. This has led to a growing interest in exploring new frequency bands for commercial use. For example, the introduction of 5G technology has opened up new frequency bands that were previously unused or underutilized. These new bands promise faster speeds and more reliable connections, catering to the ever-increasing number of connected devices.Furthermore, understanding the behavior of signals within different frequency bands is vital for designing effective communication systems. Engineers must consider factors such as propagation, attenuation, and interference when working with various frequency bands. For instance, as frequency increases, the wavelength decreases, which can lead to challenges in maintaining signal integrity over long distances. By analyzing these factors, engineers can optimize their designs to ensure robust performance across different frequency bands.In conclusion, the concept of frequency band plays a pivotal role in modern communication systems. It encompasses a wide range of applications from broadcasting to wireless networking, and its importance continues to grow as technology advances. As we move forward, a deeper understanding of frequency bands will be essential for developing innovative solutions that meet the demands of an increasingly connected world.

在电信和信号处理的世界中，术语频率带指的是电磁波谱中特定的频率范围。理解频率带对各种应用至关重要，包括广播、无线通信和雷达系统。每个频率带都有独特的特性，使其适合不同类型的通信。例如，较低的频率带，如用于调幅广播的频率，可以传播更长的距离并更好地穿透障碍物，这使它们非常适合需要覆盖广阔区域的农村广播。另一方面，较高的频率带，如用于微波通信的频率，允许更高的数据传输速率，但范围和穿透能力有限。此外，频率带的分配受到全球各国政府机构的严格监管，以防止不同服务之间的干扰。例如，美国联邦通信委员会（FCC）为商业使用、应急服务和业余无线电操作员分配特定的频率带。这种监管确保每项服务在不干扰其他服务的情况下高效运行。频率带的概念在无线网络领域也至关重要，不同的频段用于各种技术，如Wi-Fi和蓝牙。近年来，由于智能设备和高清流媒体服务的普及，对带宽的需求显著增加。这导致人们对探索新的频率带以供商业使用产生了越来越大的兴趣。例如，5G技术的引入开辟了以前未使用或利用不足的新频率带。这些新频段承诺提供更快的速度和更可靠的连接，以满足日益增加的连接设备数量。此外，理解不同频率带内信号的行为对于设计有效的通信系统至关重要。工程师在处理各种频率带时，必须考虑传播、衰减和干扰等因素。例如，随着频率的增加，波长减小，这可能导致在长距离上传输信号完整性方面的挑战。通过分析这些因素，工程师可以优化他们的设计，以确保在不同频率带中的稳健性能。总之，频率带的概念在现代通信系统中发挥着关键作用。它涵盖了从广播到无线网络的一系列应用，随着技术的进步，其重要性持续增长。随着我们向前发展，对频率带的更深入理解将对开发满足日益互联世界需求的创新解决方案至关重要。