Njengoba sonke sazi, intambo ye-coaxial iwumugqa wokudlulisa we-broadband onokulahleka okuphansi nokuhlukaniswa okuphezulu.Ikhebula le-coaxial liqukethe amakhondaktha amabili angama-cylindrical ahlukaniswe ama-dielectric gaskets.Amandla kanye ne-inductance esatshalaliswa eduze komugqa we-coaxial kuzokhiqiza i-impedance esabalalisiwe kuso sonke isakhiwo, okuyisici esivimbelayo.
Ukulahlekelwa ukumelana nekhebula elikhoaxial kwenza ukulahlekelwa nokuziphatha eduze kwekhebula kubikezelwe.Ngaphansi komphumela ohlangene walezi zici, ukulahleka kwentambo ye-coaxial lapho kudluliswa amandla kagesi kagesi (EM) kuncane kakhulu kunaleyo ye-antenna esikhaleni esikhululekile, futhi ukuphazamiseka nakho kuncane.
(1) Isakhiwo
Imikhiqizo yekhebula lama-coaxial inongqimba oluvikelayo lwangaphandle.Ezinye izendlalelo zezinto ezibonakalayo zingasetshenziswa ngaphandle kwentambo ye-coaxial ukuze kuthuthukiswe ukusebenza kokuvikelwa kwemvelo, amandla okuvikela i-EM kanye nokuguquguquka.Ikhebula le-coaxial lingenziwa ngocingo olulukiwe lwe-coaxial, futhi lwendlalwe ngobuhlakani, okwenza ikhebula liguquguquke kakhulu futhi lilungiseke kabusha, likhanye futhi liqine.Inqobo nje uma umqhubi we-cylindrical wentambo ye-coaxial egcina ukugxila, ukugoba nokuchezuka ngeke kuthinte ukusebenza kwekhebula.Ngakho-ke, izintambo ezingama-coaxial ngokuvamile zixhunywa kuzixhumi ze-coaxial zisebenzisa izindlela zohlobo lwesikulufu.Sebenzisa i-torque wrench ukuze ulawule ukuqina.
2） Umgomo wokusebenza
Imigqa yama-coaxial inezici ezibalulekile ezihlobene nemvamisa, ezichaza ukujula kwesikhumba okungase kube khona kanye nemvamisa yokusika.Ukujula kwesikhumba kuchaza isenzeko samasiginali aphezulu asakazeka emgqeni we-coaxial.Lapho i-frequency iphezulu, ama-electron amaningi athambekele ekuqhubekeni endaweni yekhondatha yomugqa we-coaxial.Umphumela wesikhumba uholela ekwenyukeni kokuqina kanye nokushisa kwe-dielectric, okwenza ukulahleka kokumelana nomugqa we-coaxial kukhulu.Ukuze unciphise ukulahlekelwa okubangelwa umphumela wesikhumba, ikhebula le-coaxial elinobubanzi obukhulu lingasetshenziswa.
Ngokusobala, ukuthuthukisa ukusebenza kwekhebula le-coaxial kuyisixazululo esikhangayo, kodwa ukwandisa ubukhulu bekhebula le-coaxial kuzonciphisa imvamisa enkulu ikhebula le-coaxial elingadlulisa.Lapho ubude begagasi bamandla e-EM budlula imodi ye-electromagnetic (TEM) eguquguqukayo futhi iqala “ukugxuma” eduze komugqa we-coaxial ukuya kumodi ye-11 kagesi eguquguqukayo (TE11), kuzokwenziwa imvamisa yokunqanyulwa kwekhebula le-coaxial.Le modi yefrikhwensi entsha iletha izinkinga ezithile.Njengoba imodi yefrikhwensi entsha isakazeka ngesivinini esihlukile kumodi ye-TEM, izobonisa futhi iphazamise isignali yemodi ye-TEM edluliswa ngentambo ye-coaxial.
Ukuxazulula le nkinga, kufanele sinciphise usayizi wekhebula le-coaxial futhi sikhulise imvamisa yokusika.Kukhona izintambo ezingama-coaxial nezixhumi ze-coaxial ezingafinyelela imvamisa yegagasi eliyimilimitha - izixhumi ezingama-coaxial eziyi-1.85mm nezingu-1mm.Kubalulekile ukuqaphela ukuthi ukunciphisa usayizi womzimba ukuze uvumelane namafrikhwensi aphezulu kuzokhuphula ukulahleka kwentambo ye-coaxial futhi kunciphise umthamo wokucubungula amandla.Enye inselele ekukhiqizeni lezi zingxenye ezincane kakhulu ukulawula ngokuqinile ukubekezelelana kwemishini ukuze kuncishiswe amaphutha amakhulu kagesi kanye nezinguquko ze-impedance emgqeni.Kuzintambo ezizwela kakhulu, kuzobiza kakhulu ukufeza lokhu.
Isikhathi sokuthumela: Jan-05-2023