微波技術(shù)與天線答案-殷際杰.docx

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1、???????????????????????最新料推薦???????????????????2.1題D30cm0.3m,R00.4cm4103m,04107L00lnDR011C00491096.431011Dln7536109ln75lnR0無(wú)損耗線L0lnDZ00R0120ln75518.1C00ΩL0C010061081100083108310vp3m/sp31083m1082.2解L01.65510Z00.66610C050Hz時(shí)：91249.85XL2f0L02501.6551091035.2104ΩBC2f0C02500.

2、66610121032.09107S100MHz時(shí)：XL2f0L021081.65510BC2f0C021080.66610z060rlnD2.3解：rdp0rr91031039.87Ω121030.42Sz60ln1096.57021.在空氣里時(shí)由于Vp3108所以p02.在高分婦材料介質(zhì)中z601ln1064.3801.521???????????????????????最新料推薦???????????????????Vp1082108由于2.251p20所以32.4形式上，低頻或直流電功率傳輸線橫截面為多連通區(qū)域，傳送信號(hào)的有單連

3、通與多連通。在內(nèi)容上，電力傳輸注重功率容量及傳輸損耗，信號(hào)線要求適應(yīng)很高的頻率，且有頻帶寬度要求，注重信息速率。2.5（1）zA1A2z012zLZA1A3Z1150ZAz01275237.5Z'L150（2）ZB1B2ZLZB1B3Z225ZBZ022502100Z2252.6頻率為100MHz時(shí)31083m108ZDEZ023002150ZL600ZD150600120750ZCD120ZCFZ020ZLZBC0ZA0頻率為200MHz時(shí)31081.5m2108ZDE600ZD300ZCD3002???????????????????

4、????最新料推薦???????????????????ZCFZC300ZBC300300600ZB200900ZA3002.7解：Z050ZCDZ250ZCFZL0ZC0ZBCZ02ZLZBEZ02502Z325100ZB25ZAZL252.8解：無(wú)損耗傳輸線Z0150ZL250dUrdZLZ0ej2d100ej2d0.25ej2dUidZLZ0400（1）d0.25P時(shí)2d20.5P2Pd0.25ej0.25（2）d0.5p時(shí)2d220.5P2Pd0.25ej20.251dS10.5SddS10.22.10解：由1得到2.5PVp31

5、080.3mf1109L2d4d40dP3j40dd0.2e33???????????????????????最新料推薦???????????????????在無(wú)損耗時(shí)，Z0為純阻dLZ0100Z0Z0ZLZ0100Z0150終端最近的電壓波腹點(diǎn)處40d03d3m7.5cm402.11解：由題意得dS10.50.2S12.5L2d當(dāng)d0.01m時(shí)，2n14Ldmin2n1得p波節(jié)點(diǎn)相差50mm時(shí)由上式可知4d2pP0.1m且將波長(zhǎng)和d0.01m代入后得到d0.2ej0.62gbd00.2ej0.60ZLZ00.2ej0.6由于ZLZ0ZL

6、Z010105010.2ej0.610.2ej0.6500.938j0.1901.062j0.19041j16.550Z02ZL2.12解：令Z*50200100ZLjZ0tgdZindZ0Z0jZLtgd求其實(shí)部4???????????????????????最新料推薦???????????????????Z0ZLZ0ZLtg2d1Z02ZL2tg2d1000010000tg2d250040000tg2d30000tg2d7500tg2d25100tgd51102darctg12d*7.4mmtg1d2200j25Zind50j7550

7、50j100串入Xind75j阻抗短路線ZindjZ0tgd75jtg3d2d1.56cmZ0ZLtg2dZ0ZL1并入導(dǎo)納ZL2Z02tg2d400002500tg2d1000010000tg2d7500tg2d30000tgd40.1d1.1070.0182150j400Yind200j10050111.5j50并入導(dǎo)納-0.03j歐化為阻抗100/3j，d=0.0094m2.13ZindZ0ZLcosdjZ0sindZ0cosdjZLsind600400cosdj600sind600cosdj400sind6002cosdj3sin

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