CST MWS多導(dǎo)體設(shè)置差模與共模問(wèn)題

如題設(shè)置差模與共模的時(shí)候出現(xiàn)警告：The multipin potential settings on port 1 result in linearly dependent field patterns. Please note that the mode fields will be orthogonalized to ensure stability.還有在獲得S參數(shù)的前面部分，它的回波損耗參數(shù)居然一部分為正，請(qǐng)問(wèn)有誰(shuí)遇到過(guò)這種問(wèn)題嗎？十分感謝

請(qǐng)學(xué)會(huì)使用軟件的幫助文件。
CST MWS幫助文件《Sources and Boundary Condition Problem Handling》。
The multipin potential settings on port "xxx" result in linearly dependent field patterns. Please note that the mode fields will be orthogonalized to ensure stability.
The defined potential sets should result in linear independent field patterns, e.g. the ”even” and ”odd” modes in a three conductor port. Otherwise the fields at the port cannot properly be decomposed into mode amplitudes. Please check whether the potential set definition is meaningful or consider treating the port as single-ended.
樓主要注意學(xué)術(shù)詞匯的嚴(yán)謹(jǐn)性。按照回波損耗的定義，無(wú)源系統(tǒng)的回波損耗就應(yīng)該是正值。
說(shuō)白了，樓主問(wèn)了兩個(gè)算命貼。

不好意思哈！新手小白，我想說(shuō)的就是S11參數(shù)。它一部分為正數(shù)，在計(jì)算TDR的時(shí)候就發(fā)生了有負(fù)數(shù)的情況

那個(gè)文件太大了，我看能直接發(fā)給你不