b二端口網(wǎng)絡ppt課件-展示頁
2025-01-14 03:15本頁面
【正文】 ??)()()()()()()()()()(22212122121111SISZSISZSUSISZSISZSU)()()( 111 SIRSUSU S ??RSISU )()( 22 ??)()())())((()(21122211121SZSZSZRSZRRSZ????二端口的轉(zhuǎn)移函數(shù)不僅和二端口參數(shù)有關而且和端接阻抗有關 BACK NEXT 167。 165 二端口網(wǎng)絡的聯(lián)接 一、 級聯(lián)（鏈聯(lián)） 設 ????????????22211211][TTTTTT + T ? + 1I??1U?? 2U??? ? 2I??+ 1U??? T ?? + 1I?? 2I??2U??? + ? 1I?1U?+ 2U?? 2I??????????????????22211211][TTTTT????????????????????????????222221121111IUTTTTIU????????????????????????????????????????222221121111IUTTTTIU????BACK NEXT T + T ? + 1I??1U?? 2U??? ? 2I??+ 1U??? T ?? + 1I?? 2I??2U??? + ? 1I?1U?+ 2U?? 2I?得 ??????????????????????????222221121111IUTTTTIU????????????????????????????????????222221121122211211IUTTTTTTTT??T T ? + 2U?? ? 2I??T ?? + ? 1I?1U?+ 2U?? 2I?2I????????????22IU??BACK NEXT 得 結論： 級聯(lián)后所得復合二端口 T 參數(shù)矩陣等于級聯(lián)的二端口 T 參數(shù)矩陣相乘 。 ??????????????????????????????????????22222112112221121111IUTTTTTTTTIU????TTT ????T1 T2 ... ... Tn T=[T1][T2] …. [T n] BACK NEXT 例 ???????10Ω 411T ???????1S 012T ???????10Ω 613T 4? 6? 4? 4? T1 ??????????????????????????? Ω 162106101 1041][ ][ ][][321 TTTT 4? 6? T3 T2 ???????22222112122111ITUTIITUTU??????BACK NEXT 二、并聯(lián)： 輸入端口并聯(lián)，輸出端口并聯(lián) ????????????????????????????????212221121121UUYYYYII???????????????????????????????????????????212221
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