dish antenna

简明释义

截抛物面天线

英英释义

例句

1.During the storm, the dish antenna 盘状天线 lost its connection temporarily.

在暴风雨期间，盘状天线暂时失去了连接。

2.The dish antenna 盘状天线 allows us to watch international channels from our home.

这个盘状天线让我们可以在家观看国际频道。

3.We need to adjust the angle of the dish antenna 盘状天线 to get a better signal.

我们需要调整盘状天线的角度，以获得更好的信号。

4.I prefer using a dish antenna 盘状天线 for clearer picture quality.

我更喜欢使用盘状天线来获得更清晰的画质。

5.The technician installed a new dish antenna 盘状天线 on the roof to improve satellite reception.

技术员在屋顶上安装了一个新的盘状天线，以改善卫星接收信号。

作文

In today's world, communication plays a vital role in our daily lives. One of the key technologies that facilitate this communication is the dish antenna. A dish antenna (碟形天线) is a type of antenna that is shaped like a dish and is used to receive or transmit signals, particularly in satellite communications. The design of the dish antenna allows it to focus on signals from satellites, making it highly effective in capturing weak signals from space.The working principle of a dish antenna is based on the parabolic shape of the dish. When a signal hits the surface of the dish, it reflects towards a focal point where the receiver is located. This design amplifies the incoming signals, allowing for better reception and transmission quality. In contrast to other types of antennas, the dish antenna can pick up signals from far distances, which is particularly important for satellite television and internet services.There are various types of dish antennas, including fixed, motorized, and multi-satellite dishes. Fixed dish antennas are mounted in a specific direction to receive signals from a single satellite. Motorized dish antennas, on the other hand, can be adjusted to track moving satellites, providing access to multiple satellite signals. Multi-satellite dish antennas are designed to receive signals from different satellites simultaneously, offering users a wider range of channels and services.The installation of a dish antenna requires careful consideration of several factors. First, the location must have a clear line of sight to the satellite, free from obstructions like trees or buildings. Additionally, the angle and elevation of the dish antenna must be accurately set to ensure optimal signal reception. Many homeowners opt for professional installation services to guarantee that their dish antenna is set up correctly.In recent years, the popularity of dish antennas has grown significantly, especially with the rise of satellite television providers. Companies such as DirecTV and Dish Network offer extensive channel packages that can only be accessed through a dish antenna. Furthermore, with advancements in technology, modern dish antennas are becoming more compact and efficient, making them easier to install and use.Despite their advantages, there are some challenges associated with dish antennas. Weather conditions such as heavy rain or snow can disrupt the signal, resulting in temporary loss of service. Additionally, users may need to pay for a subscription to access certain satellite channels, which can add to the overall cost of using a dish antenna.In conclusion, the dish antenna (碟形天线) is an essential component of modern communication systems, particularly in the realm of satellite technology. Its unique design and functionality allow for effective signal reception and transmission, making it a popular choice for many households. As technology continues to evolve, we can expect further improvements in dish antennas, enhancing our ability to connect with the world around us.

在当今世界，通信在我们的日常生活中扮演着重要角色。促进这种通信的关键技术之一是碟形天线。碟形天线（dish antenna）是一种形状像碟子的天线，主要用于接收或发送信号，特别是在卫星通信中。碟形天线的设计使其能够聚焦来自卫星的信号，从而有效地捕捉来自太空的微弱信号。碟形天线的工作原理基于其抛物线的形状。当信号击中天线表面时，它会反射到一个焦点，在那里接收器位于该点。这种设计增强了传入信号，使接收和传输质量更好。与其他类型的天线相比，碟形天线可以从远处接收信号，这对于卫星电视和互联网服务尤其重要。有多种类型的碟形天线，包括固定式、马达驱动式和多卫星天线。固定式碟形天线被安装在特定方向，以接收来自单一卫星的信号。而马达驱动式碟形天线则可以调整以跟踪移动的卫星，从而提供对多个卫星信号的访问。多卫星碟形天线旨在同时接收来自不同卫星的信号，为用户提供更广泛的频道和服务。安装碟形天线需要仔细考虑多个因素。首先，位置必须有清晰的视线通向卫星，避免树木或建筑物等障碍物。此外，碟形天线的角度和高度必须准确设置，以确保最佳信号接收。许多房主选择专业安装服务，以确保他们的碟形天线正确安装。近年来，随着卫星电视提供商的崛起，碟形天线的受欢迎程度显著增加。像DirecTV和Dish Network这样的公司提供广泛的频道套餐，这些套餐只能通过碟形天线访问。此外，随着技术的进步，现代碟形天线变得更加紧凑和高效，使其更易于安装和使用。尽管有诸多优势，但碟形天线也面临一些挑战。恶劣的天气条件，如大雨或大雪，可能会干扰信号，导致服务暂时中断。此外，用户可能需要支付订阅费用才能访问某些卫星频道，这可能会增加使用碟形天线的整体成本。总之，碟形天线（dish antenna）是现代通信系统的重要组成部分，特别是在卫星技术领域。其独特的设计和功能使其能够有效接收和传输信号，成为许多家庭的热门选择。随着技术的不断发展，我们可以期待碟形天线的进一步改进，增强我们与周围世界的连接能力。