【正文】 標(biāo)圖，以半波振子為例，應(yīng)用主要語句及結(jié)果如下：F=abs（Ｆ）plot(theta,F,39。首先記述側(cè)射式天線cc。之所以選擇這樣的題目是由于筆者在大學(xué)學(xué)習(xí)期間對天線類的相關(guān)知識相對來講比較感興趣。R=sin(pi.*n*d.*(1sin(theta1)))./sin(pi.*d.*(1sin(theta1)))。因為MATLAB是以數(shù)組的形式做相應(yīng)的運算，不注意上述問題會產(chǎn)生維數(shù)不相等的錯誤：Error using == timesMatrix dimensions must agree.在MATLAB中是一中經(jīng)典的常見錯誤。只有確定了對稱振子的電長度，才能具體討論對稱振子的方向性。利用這種天線系統(tǒng)可以獲得所期望的輻射特性，諸如更高的增益，需要的方向性等。由于方向性函數(shù)是三維空間角的函數(shù)，所以繪制出的方向性圖是立體圖。該軟件涵蓋了多種不同類型的天線，根據(jù)選定的天線類型，通過輸入相應(yīng)的參數(shù)，點擊繪制圖形功能，便可以繪制出天線陣的立體方向性圖。關(guān)鍵詞：天線陣，方向性，方向性圖，MATLAB語言 Abstract ： Mobile munications antenna array is an important part of the system, its performance is directly connected to the system of munication quality. Antenna array a wide range of different properties. Describe the characteristics of antenna array parameters are many, and plex calculations, particularly describing the characteristics of antenna array orientation picture shows the direction of threedimensional maps, very difficult. To address these issues, this article antennas function as the main object of the direction of the antenna characteristics. On this basis, developed using MATLAB language features an array of software, to achieve the calculation of the antenna parameters and flexible mapping function of the antenna directional diagram. The software covers many different types of antennas, according to the selected antenna type, by entering the corresponding of the parameters, click on drawing graphics, we can draw out the threedimensional pattern of the antenna array. The software also has a calculatio