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(shí)間:2024-07-30
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跪求指點(diǎn):我在CST中仿了一個(gè)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(dǎo)出用第三方軟件分析。
Template based postprocessing中可以直接求
從1D Result選項(xiàng)卡中,選擇“Farfield(Broadband)”,在彈出的“Broadband Farfield Result”對(duì)話框中按照下圖所示設(shè)置,并且打開(kāi)Angular Width Option進(jìn)行設(shè)置(默認(rèn)為3dB),即可得到對(duì)應(yīng)歸一化負(fù)多少dB的波束寬度隨頻率變化曲線。
學(xué)習(xí)了哈 原來(lái)是這樣的