antenna field gain

简明释义

天线场强增益

英英释义

例句

1.During the testing phase, we noticed that the antenna field gain was lower than expected.

在测试阶段，我们注意到天线场增益低于预期。

2.A higher antenna field gain can significantly improve the reception quality of mobile devices.

更高的天线场增益可以显著提高移动设备的接收质量。

3.The design of the antenna field gain is crucial for achieving long-range communication.

设计天线场增益对于实现远程通信至关重要。

4.By adjusting the angle of the antenna, we were able to increase the antenna field gain significantly.

通过调整天线的角度，我们能够显著增加天线场增益。

5.The engineer measured the antenna field gain to optimize the signal strength in the new communication system.

工程师测量了天线场增益以优化新通信系统中的信号强度。

作文

In the realm of telecommunications and radio engineering, the concept of antenna field gain plays a crucial role in determining the efficiency and effectiveness of communication systems. 天线场增益 refers to the ability of an antenna to direct radio waves in a specific direction compared to an isotropic radiator, which emits energy uniformly in all directions. Understanding this concept is essential for engineers and technicians who design and deploy antennas for various applications, including mobile communications, satellite systems, and broadcasting. The antenna field gain is measured in decibels (dB) and indicates how much stronger the signal is in the preferred direction compared to a reference point. For instance, if an antenna has a gain of 10 dB, it means that the signal strength in the direction of maximum radiation is ten times greater than that of an isotropic antenna. This characteristic is particularly important when considering the coverage area and signal quality of a communication system. When designing an antenna, engineers must take into account several factors that influence antenna field gain. These include the antenna's size, shape, and the materials used in its construction. Larger antennas generally have higher gains because they can capture more energy from the incoming signals. Additionally, the design of the antenna, such as whether it is directional or omnidirectional, will affect its gain characteristics. Directional antennas, for example, focus the energy in a specific direction, resulting in higher gain, while omnidirectional antennas provide a more uniform distribution of signals but with lower gain. The practical applications of antenna field gain are vast. In mobile telephony, for example, base station antennas are designed to maximize gain in the direction of the cell towers, ensuring that users receive strong signals even at significant distances. Similarly, in satellite communications, antennas must be engineered to achieve high gain to maintain a reliable connection between the satellite and ground stations. The higher the gain, the better the quality of the communication link, which is critical for applications such as GPS and satellite television. Moreover, understanding antenna field gain is vital for optimizing network performance. Engineers often conduct field tests to measure the actual gain of antennas in real-world conditions. By analyzing these measurements, they can make informed decisions about antenna placement, orientation, and type to enhance overall system performance. This optimization process is crucial in urban environments where buildings and other structures can obstruct signals, leading to decreased gain and poor service quality. In conclusion, the concept of antenna field gain is fundamental in the field of telecommunications. It not only influences the design and functionality of antennas but also impacts the quality of communication systems. As technology continues to evolve, the importance of understanding and applying the principles of antenna field gain will remain paramount for engineers and professionals in the industry. By mastering this concept, they can ensure the development of efficient, high-performance communication systems that meet the demands of modern society.

在电信和无线电工程领域，天线场增益的概念在确定通信系统的效率和有效性方面发挥着至关重要的作用。天线场增益指的是天线在特定方向上引导无线电波的能力，与各向同性辐射器相比，后者在所有方向上均匀发射能量。理解这一概念对于设计和部署各种应用（包括移动通信、卫星系统和广播）的天线的工程师和技术人员至关重要。天线场增益以分贝（dB）为单位进行测量，表示在优选方向上的信号强度与参考点的比较。例如，如果一根天线的增益为10 dB，这意味着在最大辐射方向上的信号强度比各向同性天线强十倍。这一特性在考虑通信系统的覆盖面积和信号质量时尤为重要。在设计天线时，工程师必须考虑几个影响天线场增益的因素。这些因素包括天线的大小、形状以及其构造所用的材料。较大的天线通常具有更高的增益，因为它们可以捕获更多来自入射信号的能量。此外，天线的设计（例如，它是定向天线还是全向天线）将影响其增益特性。定向天线例如，将能量聚焦在特定方向上，从而导致较高的增益，而全向天线则提供更均匀的信号分布，但增益较低。天线场增益的实际应用非常广泛。在移动电话中，例如，基站天线的设计旨在最大化朝向小区塔的增益，以确保用户即使在较远的距离也能接收到强信号。同样，在卫星通信中，天线必须工程设计以实现高增益，以维持卫星与地面站之间的可靠连接。增益越高，通信链路的质量就越好，这对于GPS和卫星电视等应用至关重要。此外，理解天线场增益对于优化网络性能至关重要。工程师通常进行现场测试，以测量天线在实际条件下的实际增益。通过分析这些测量结果，他们可以就天线的放置、方向和类型做出明智的决策，从而提升整体系统性能。这一优化过程在城市环境中尤其重要，因为建筑物和其他结构可能会阻碍信号，导致增益下降和服务质量不佳。总之，天线场增益的概念在电信领域是基础性的。它不仅影响天线的设计和功能，还影响通信系统的质量。随着技术的不断发展，理解和应用天线场增益原理的重要性将继续保持，对于行业中的工程师和专业人员而言，掌握这一概念能够确保开发出高效、高性能的通信系统，以满足现代社会的需求。