CST MWS中仿喇叭,結(jié)果顯示的是3dB的主瓣寬度,如何查看10dB的?
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更新時間:2024-07-30
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跪求指點:我在CST中仿了一個喇叭,結(jié)果顯示的是3dB的主瓣寬度,如何查看10dB的主瓣寬度?
按照CST的定義:
Angular width: The angular width (or beamwidth) is defined as the angle between two directions where the radiation is dropped by 3 dB regarding the radiation in main lobe direction. This angle is located in a plane containing the main lobe direction .
CST MWS幫助文件《Farfield Overview》。
如果你一定要看10 dB,那可能得導出用第三方軟件分析。
Template based postprocessing中可以直接求
從1D Result選項卡中,選擇“Farfield(Broadband)”,在彈出的“Broadband Farfield Result”對話框中按照下圖所示設(shè)置,并且打開Angular Width Option進行設(shè)置(默認為3dB),即可得到對應(yīng)歸一化負多少dB的波束寬度隨頻率變化曲線。
學習了哈 原來是這樣的