vertical antenna

简明释义

垂直天线

英英释义

例句

1.Many amateur radio operators choose a vertical antenna for its ease of installation.

许多业余无线电爱好者选择垂直天线，因为它易于安装。

2.The radio station uses a vertical antenna to broadcast signals over a wide area.

这个广播电台使用垂直天线向广泛区域发射信号。

3.For better reception, I installed a vertical antenna on my roof.

为了获得更好的接收效果，我在屋顶上安装了一个垂直天线。

4.A vertical antenna is often preferred for its omnidirectional properties.

由于其全向特性，通常会优先选择垂直天线。

5.During the storm, the vertical antenna remained intact while other structures were damaged.

在暴风雨期间，垂直天线保持完好，而其他结构受到了损坏。

作文

In the world of radio communications, antennas play a crucial role in transmitting and receiving signals. Among various types of antennas, the vertical antenna (垂直天线) stands out due to its unique characteristics and applications. This essay aims to explore the functionality, advantages, and use cases of the vertical antenna (垂直天线), highlighting why it is a preferred choice for many amateur radio operators and professionals alike.A vertical antenna (垂直天线) is designed to radiate signals vertically, which allows for omnidirectional coverage. This means that the antenna can send and receive signals from all directions equally, making it an ideal choice for communication over various distances. The design typically involves a straight rod or a series of elements arranged in a vertical position, often mounted on a mast or tower. One of the key benefits of a vertical antenna (垂直天线) is its ability to work efficiently in limited space. Unlike horizontal antennas, which require more room to operate effectively, vertical antennas can fit into smaller areas without compromising performance.Another significant advantage of the vertical antenna (垂直天线) is its low angle of radiation. This characteristic enables better long-distance communication, especially for HF (high frequency) bands. When signals are transmitted at a lower angle, they can bounce off the ionosphere and travel further, reaching distant stations that would be unreachable with other types of antennas. This makes the vertical antenna (垂直天线) particularly popular among ham radio enthusiasts who enjoy making contacts across vast distances.The construction of a vertical antenna (垂直天线) can vary widely, with options ranging from simple designs made with wire to complex structures incorporating multiple elements for enhanced performance. For example, a quarter-wave vertical antenna is one of the simplest configurations, consisting of a single vertical element that is one-quarter the wavelength of the frequency being used. More advanced designs may include ground planes or additional radials to improve efficiency and reduce ground losses.In addition to amateur radio, vertical antennas (垂直天线) are also utilized in commercial applications. They are commonly found in broadcasting stations, where their omnidirectional properties allow for consistent signal coverage over a wide area. Furthermore, these antennas are used in mobile communication systems, including cellular networks, where their compact size and effectiveness make them suitable for urban environments.Despite their many advantages, there are some considerations when using a vertical antenna (垂直天线). For instance, the installation location can significantly impact performance. Ideally, a vertical antenna should be placed in an area free from obstructions, as buildings and trees can interfere with signal transmission and reception. Additionally, grounding is essential for safety and performance, as it helps to minimize noise and enhance signal clarity.In conclusion, the vertical antenna (垂直天线) is an indispensable tool in the field of radio communications. Its versatile design, efficient performance, and ability to provide omnidirectional coverage make it a favorite among both amateur and professional users. As technology continues to advance, the vertical antenna (垂直天线) will undoubtedly remain a vital component in the ever-evolving landscape of wireless communication.

在无线电通信的世界中，天线在信号的传输和接收中发挥着至关重要的作用。在各种类型的天线中，垂直天线（vertical antenna）因其独特的特性和应用而脱颖而出。本文旨在探讨垂直天线（vertical antenna）的功能、优势和使用案例，强调为何它是许多业余无线电爱好者和专业人士的首选。垂直天线（vertical antenna）旨在垂直辐射信号，这允许全向覆盖。这意味着天线可以从各个方向均匀地发送和接收信号，使其成为各种距离通信的理想选择。其设计通常涉及一个直杆或一系列垂直排列的元件，通常安装在杆或塔上。垂直天线（vertical antenna）的一个关键优点是其在有限空间内的高效工作能力。与需要更多空间才能有效工作的水平天线不同，垂直天线可以在较小的区域内运行，而不妨碍性能。垂直天线（vertical antenna）的另一个显著优势是其低辐射角度。这个特性使得长距离通信变得更为可靠，特别是在HF（高频）频段。当信号以较低的角度发射时，它们可以反弹到电离层并传播得更远，达到其他类型天线无法到达的远处站点。这使得垂直天线（vertical antenna）在喜欢跨越广阔距离进行联系的业余无线电爱好者中尤其受欢迎。垂直天线（vertical antenna）的构造可以有很大的不同，从简单的线材设计到复杂的结构，包含多个元件以增强性能。例如，一个四分之一波长的垂直天线是最简单的配置之一，由一个垂直元素组成，其长度为所用频率的四分之一波长。更先进的设计可能包括接地平面或额外的辐射线，以提高效率并减少接地损耗。除了业余无线电外，垂直天线（vertical antenna）还广泛应用于商业领域。它们通常出现在广播电台中，其全向特性允许在广泛区域内提供一致的信号覆盖。此外，这些天线还用于移动通信系统，包括蜂窝网络，其紧凑的尺寸和有效性使其适合城市环境。尽管有许多优点，但使用垂直天线（vertical antenna）时也有一些考虑因素。例如，安装位置对性能的影响显著。理想情况下，垂直天线应放置在没有障碍物的区域，因为建筑物和树木会干扰信号的传输和接收。此外，接地对于安全和性能至关重要，因为它有助于减少噪声并提高信号清晰度。总之，垂直天线（vertical antenna）是无线电通信领域不可或缺的工具。其多功能设计、高效性能和提供全向覆盖的能力使其成为业余用户和专业用户的最爱。随着技术的不断进步，垂直天线（vertical antenna）无疑将在不断发展的无线通信领域中继续扮演重要角色。