antenna

简明释义

英[ænˈtenə]美[ænˈtenə]

n. 触须，触角；<美>天线；感觉，直觉

【名】 （Antenna）（法）安泰纳（人名）

复 数 a n t e n n a e 或 a n t e n n a s

英英释义

单词用法

同义词

反义词

例句

1.The radar has a solid-state transmitter and a rotating planar array antenna.

该雷达有一个使用电晶体的发射机和一个旋转面阵列天线。

2.They’re playing the iPhone antenna song.

有人在演奏iPhone天线之歌。

3.Those earlier tests did not address antenna performance.

这些早期的测试并没有表现出天线的效果。

4.An antenna was not found inside, but a balloon with freon was there.

里面并未找到天线，而是一个装有氟利昂的气球在那里。

5.Can you see the radio antenna on that hill?

你能看见那座山上的无线电天线吗？

6.All such products currently need to have an external antenna.

目前所有产品都需要一根外置天线。

7.The scientist studied the effects of antenna design on signal strength.

科学家研究了天线设计对信号强度的影响。

8.The radio has a built-in antenna for better reception.

这台收音机内置了一个天线以获得更好的接收效果。

9.He adjusted the antenna to improve the TV signal.

他调整了天线以改善电视信号。

10.Some smartphones have an internal antenna for GPS.

一些智能手机内部有用于GPS的天线。

11.The drone uses a high-frequency antenna for communication.

这架无人机使用高频天线进行通信。

作文

In the modern world, communication technology plays a crucial role in our daily lives. One of the key components that facilitate this communication is the antenna. An antenna (天线) is a device used to transmit and receive electromagnetic waves, allowing us to connect with one another over vast distances. Without antennas, many of the technologies we rely on today, such as smartphones, radios, and televisions, would not function as they do. The history of the antenna dates back to the late 19th century when inventors like Heinrich Hertz began to experiment with wireless communication. Hertz's work demonstrated that it was possible to transmit signals through the air, leading to the development of the first antennas. These early antennas were simple wire structures that could send and receive radio waves. As technology advanced, so did the design and functionality of antennas. Today, there are various types of antennas, each designed for specific applications. For instance, dipole antennas are commonly used in radio broadcasting, while parabolic dish antennas are utilized for satellite communications. The design of an antenna can significantly affect its performance; factors such as size, shape, and material all play a role in how effectively it transmits and receives signals. One of the most interesting aspects of antennas is their ability to convert electrical energy into electromagnetic waves and vice versa. When an electrical current passes through an antenna, it creates an oscillating electric field, which generates electromagnetic waves that propagate through space. Conversely, when these waves reach another antenna, they induce a current that can be transformed back into usable electrical energy. This fundamental principle underlies all wireless communication technologies. As society continues to embrace new technologies, the importance of antennas will only increase. With the rise of the Internet of Things (IoT), where everyday objects are connected to the internet, the demand for efficient and effective antennas is growing rapidly. Engineers are now working on developing smaller, more powerful antennas that can be integrated into a wide range of devices, from smart home appliances to wearable technology. Moreover, advancements in materials science are leading to the creation of innovative antennas that can operate in various environments. Flexible and lightweight antennas are being developed for use in drones and other mobile devices, enhancing their functionality without adding significant weight. In conclusion, the antenna (天线) is a vital component of modern communication systems. Its ability to transmit and receive electromagnetic waves has revolutionized how we connect with one another. As technology continues to evolve, the role of antennas will remain essential, paving the way for new innovations in communication and connectivity. Understanding how antennas work and their significance in our daily lives is crucial for anyone interested in the future of technology.

在现代社会，通信技术在我们的日常生活中发挥着至关重要的作用。促进这种通信的关键组成部分之一是天线。天线（antenna）是一种用于传输和接收电磁波的设备，使我们能够在广阔的距离上相互连接。如果没有天线，我们今天依赖的许多技术，如智能手机、收音机和电视，将无法像现在这样运作。天线的历史可以追溯到19世纪末，当时海因里希·赫兹等发明家开始实验无线通信。赫兹的工作证明可以通过空气传输信号，这导致了第一批天线的发展。这些早期的天线是简单的线结构，可以发送和接收无线电波。随着技术的进步，天线的设计和功能也随之发展。如今，有各种类型的天线，每种类型都针对特定的应用。例如，偶极天线通常用于广播，而抛物面碟形天线则用于卫星通信。天线的设计会显著影响其性能；大小、形状和材料等因素都在传输和接收信号的有效性中发挥着作用。天线最有趣的方面之一是它们能够将电能转换为电磁波，反之亦然。当电流通过天线时，会产生一个振荡的电场，从而生成传播在空间中的电磁波。相反，当这些波到达另一根天线时，会感应出电流，可以转化为可用的电能。这一基本原理构成了所有无线通信技术的基础。随着社会不断接受新技术，天线的重要性只会增加。随着物联网（IoT）的兴起，日常物品连接到互联网，对高效和有效的天线的需求正在迅速增长。工程师们现在正在开发更小、更强大的天线，可以集成到从智能家电到可穿戴技术的各种设备中。此外，材料科学的进步正在导致创新天线的创造，这些天线可以在各种环境中运行。正在开发柔性和轻量化的天线，用于无人机和其他移动设备，在不增加显著重量的情况下增强其功能。总之，天线（antenna）是现代通信系统的重要组成部分。它传输和接收电磁波的能力彻底改变了我们彼此连接的方式。随着技术的不断发展，天线的作用将继续至关重要，为通信和连接的新创新铺平道路。理解天线的工作原理及其在我们日常生活中的重要性，对于任何对未来技术感兴趣的人来说都是至关重要的。