Incazelo ye-antenna kazibuthe
Ake sikhulume ngokwakhiwa kwe-antenna kazibuthe, i-antenna evamile emakethe yakhiwe ikakhulukazi: i-antenna radiator, i-sucker magnetic enamandla, i-feeder, i-antenna interface yalezi zingcezu ezine.
1, i-antenna radiator material iyinsimbi engagqwali, ithusi elihlanzekile, ingxubevange yenkumbulo nezinye izinto, umumo ngokuvamile uyisiswebhu noma induku.Ii-antenna kazibutheIrediyetha empeleni iyi-unipolar (whip) antenna, okuyi-oscillator elinganayo enengalo eyodwa eqonde endizeni yomqhubi ekahle (ephansi).Ngokomgomo we-antenna, i-resonant frequency ye-antenna yocingo iwukuphindaphinda okubalulekile kwe-1/2 wavelength, futhi ngokomgomo wesibuko, endizeni efanelekile engapheli, ubuncane bosayizi kagesi we-antenna kazibuthe yi-1/4 wavelength. , futhi uma inzuzo izothuthukiswa, ukulayishwa okuphakathi kungasetshenziswa ukwandisa ubude berediyetha ye-antenna (i-1/4 ye-wavelength integral integral).
2, indima ye-chuck kazibuthe enamandla ukulungisa yonke i-antenna nokuqinisekisa ukuthi i-chuck antenna ixhumene nensimbi emuncwayo.
3, i-feeder ngokuvamile iwuchungechunge lwe-RG (RG58, RG174), ucingo lwe-3D njalonjalo.
4, isixhumi esibonakalayo se-antenna esijwayelekile yilesi: Ikhanda le-N, i-SMA, i-BNC, i-TNC, i-I-PEX nezinye izinhlobo zesixhumi esibonakalayo, phakathi kwazo izixhumi ezinozibuthe ezivame ukusetshenziswa ziyi-N head, SMA, BNC, TNC, njll., owesilisa nowesifazane, khetha uthi kufanele uthenge isixhumi esifana nesisetshenziswa.
Izinto eziyinhloko zokusebenzisa i-antenna kazibuthe
Ukukucacisela nje, kungani isitsha sokumunca sinamathela ensimbi?
Kusuka kuma-tweets ethu adlule, singakwazi ukwazi ukuthi ukusebenza kukagesi kwe-antenna kuhlobene eduze nendawo esetshenziswa kuyo, futhi imvamisa ye-resonant ithintwa ukungaguquguquki kwe-dielectric yezinto ezizungeze uthi, futhi ukusetshenziswa kwayo nokusebenza akukwazi. zihlukaniswe nezidingo zemvelo yokuklama kanye nendawo yokufaka.
Irediyetha ye-antenna yesitsha esimuncayo okukhulunywe ngayo ngenhla iyi-antenna ye-unipolar.Ngokwesimiso sesithombe, i-antenna e-unipolar enobude obungu-h kanye nesithombe sayo yakha i-oscillator elinganayo enobude obungu-2h, insimu yayo engxenyeni engenhla yesigamu ifana neye-oscillator ye-symmetric, futhi amandla ensimu esikhaleni esingaphansi. uziro
Ngokuvamile, i-antenna kazibuthe isetshenziswa ikakhulukazi ekhabetheni, ophahleni lwemoto noma indawo efanayo, ngakho-ke yakhelwe ngesisekelo sekhabhinethi ehlukahlukene kanye namamodeli womzimba wemoto, ukuze ubukhulu bengxenye yensimbi ephansi yegagasi lomsakazo. ubude begagasi befrikhwensi yokuxhumana buba yingxenye yothi.Ngakho-ke, indawo ehlukile yokufaka izothinta ngokuqondile ushintsho lwemingcele kagesi yomklamo wangempela we-antenna, ikakhulukazi imvamisa ye-resonant kanye nesiqondiso semisebe.
Umdwebo oqondisa imisebe we-antenna eyodwa ye-wavelength unipolar kudiski elinganiselwe (ngokusetshenziswa okungokoqobo, idiski yensimbi ephansi inomkhawulo futhi ayikwazi ukwenza isithombe esiphelele sesibuko), futhi kukhona nemisebe ethile engxenyeni engezansi yesikhala (umphumela we-diffraction ).
Ukusebenza kwe-antenna emunca kazibuthe kuhluke ngokuphelele uma ikhangisiwe emzimbeni wensimbi wosayizi abahlukene.Ngakho-ke, uma usebenzisa i-antenna yokuncela, sincoma amaphuzu amabili alandelayo:
1, kudingeka ukuthi ikhangiswe phezulu kwekhabhinethi noma isitimela ukuze kuqinisekiswe ukuphakama nokuqondiswa kwemisebe, ukuze kudlale ukusebenza kahle kothi;Uma ifakwe kwezinye izingxenye, izodala izinguquko kugagasi elimile, iphethini yesiqondiso kanye ne-Angle yokuphakama, okuthinta ububanzi bokuxhumana.
2, ngangokunokwenzeka ukufaka i-antenna endaweni ebanzi yombono, gwema ukufakwa ku-shaft noma endaweni eyinkimbinkimbi ye-electromagnetic, ngale ndlela kuphela kungathuthukisa ikhwalithi yokuxhumana, ukunciphisa umsindo wangemuva nezinye iziphazamiso ezingalindelekile.
Ukusetshenziswa kwe-antenna kazibuthe
Uma kukhulunywa ngokusetshenziswa kwezinti kazibuthe, ake siqale sikhulume ngezinzuzo zayo.Uma ifakwe kahle, i-antenna yokumunca inezinga elingcono lokuma kwegagasi nokusebenza kahle okuphakeme kune-antenna eyakhelwe ngaphakathi, futhi akukho ukwenza ngokwezifiso okudingekayo.Nge-antenna yenduku yeglue kubhendi efanayo yefrikhwensi kanye nosayizi wesakhiwo, inzuzo iphakeme, ibanga lokudlulisela lide, futhi izindawo zokufaka ezihlukene zingakhethwa ngokuya ngezidingo zangempela zokusetshenziswa.
Ngaphezu kwezinzuzo ezingenhla, i-antenna yokumunca nayo inezinhlobonhlobo zokusetshenziswa, ngaphezu kwemishini yethu yokuthengisa ebonakalayo yansuku zonke, amakhabethe e-express, umsakazo wemoto, ingasetshenziswa futhi kumamojula angenawaya kanye namasango angenantambo anezidingo zokuzuza okusesilinganisweni.
I-antenna yamagnetic ingasetshenziswa ebhokisini likagesi langaphandle, imoto.Uma isetshenziswa ngaphandle, i-radome ingenziwa nge-fiberglass nezinye izinto, ezingavimbela amanzi futhi zingangeni umoya.
I-antenna yamagnetic ingasetshenziswa futhi emishinini yokuthengisa, isisekelo se-antenna siyi-sucker enamandla kazibuthe, kulula ukuyifaka, akulula ukuwa.
I-antenna yamagnetic ingasetshenziswa ekufundeni imitha engenantambo, ukwakheka kwe-antenna kulula, ukubukeka okuhle
Isikhathi sokuthumela: Jul-02-2023
