Let's jump right into it.

讓我們直接進入主題。

An antenna radiation pattern is a representation of the radiation characteristics of an antenna.

天線輻射圖是天線輻射特性的表示。

It describes how an antenna radiates energy into space in different directions.

它描述了天線如何向不同方向的空間輻射能量。

While antenna simulation can provide very accurate results, measurement is the ultimate verification of an antenna's performance.

雖然天線仿真可以提供非常精確的結果，但測量才是天線性能的最終驗證。

There are two methods for radiation pattern measurement, far field and near field.

輻射模式測量有兩種方法：遠場和近場。

The near field method requires complicated mathematics while usually being less precise.

近場法需要複雜的數學運算，通常精度較低。

Therefore, we'll skip it for now and concentrate on the easier to understand far field measurement technique.

是以，我們暫時跳過它，集中討論更容易理解的遠場測量技術。

As is the case when measuring antenna gain, we need specialized equipment.

與測量天線增益一樣，我們需要專門的設備。

A signal generator connected to a source antenna, a positioning system to precisely aim the antenna being measured in various directions, which is connected to a signal detector.

信號發生器與信號源天線相連，定位系統可將被測天線精確對準不同方向，定位系統與信號檢測器相連。

The positioning system is used to rotate the antenna to different angles relative to the receiver, while the receiver measures the receive power and then signal strength is recorded at each angle.

定位系統用於將天線旋轉到相對於接收器的不同角度，而接收器則測量接收功率，然後記錄每個角度的信號強度。

The data is then processed so that the maximum value of all data points is zero to get a normalized radiation pattern.

然後對數據進行處理，使所有數據點的最大值為零，從而得到歸一化輻射模式。

These points are then graphed on a polar plot to create the visual representation we're all familiar with.

然後將這些點繪製成極座標圖，形成我們都熟悉的直觀表示。

This is usually done in the azimuth and elevation plane as these are most commonly used in antenna documentation.

這通常是在方位角和仰角平面上進行的，因為這兩個平面在天線文檔中最常用。

However, for a full 3D radiation diagram, the antenna has to be measured in many more points which takes a considerable amount of time.

然而，要獲得完整的三維輻射圖，必須對天線的更多點進行測量，這需要花費大量時間。

Well, that's it for today.

好了，今天就到這裡吧。

Let us know what topics you'd like us to address in the comments below.

請在下面的評論中告訴我們您希望我們討論哪些話題。

And don't forget to hit the like button and subscribe to our channel.

別忘了點擊 "喜歡 "按鈕並訂閱我們的頻道。