Inkcazo ye-antenna yamagnetic
Makhe sithethe malunga nokwakhiwa kwe-eriyalikazikazi, i-eriyali yokufunxa eqhelekileyo kwimarike yenziwa ikakhulu: irediyetha ye-antenna, i-antenna enamandla, i-fieder, ujongano lwe-eriyali yezi ziqwenga zine.
1, imathiriyeli ye-eriyali ye-antenna yintsimbi engenasici, ubhedu olusulungekileyo, ialloy yenkumbulo kunye nezinye izinto, imilo ngokuqhelekileyo sisisabhokhwe okanye intonga.Ii-eriyali enemagnethiIrediyetha ngenene yi-eriyali ye-unipolar (whip), eyi-oscillator elinganayo enengalo enye ejonge kwinqwelomoya yomqhubi ofanelekileyo (umhlaba).Ngokomgaqo-siseko we-eriyali, ukuphindaphindwa kwe-eriyali yocingo kukuphinda-phinda okudityanisiweyo kwe-1/2 yobude bewavelength, kwaye ngokomgaqo wesipili, kwinqwelomoya efanelekileyo engapheliyo, ubuncinci bobungakanani bombane be-eriyali yemagnethi yi-1/4 yamaza. , kwaye ukuba inzuzo iya kuphuculwa, ukulayishwa okuphakathi kungasetyenziselwa ukwandisa ubude be-radiator ye-antenna (1/4 wavelength integral multiple).
2, indima ye-eriyali eyomeleleyo kukulungisa i-eriyali yonke kunye nokuqinisekisa ukuba i-eriyali ye-chuck idibane nentsimbi efunxwayo.
3, i-feeder ngokubanzi RG series (RG58, RG174), ucingo lwe-3D njalo njalo.
4, ujongano lwe-eriyali eqhelekileyo zezi: N intloko, SMA, BNC, TNC, I-PEX kunye nezinye iintlobo zojongano, phakathi kwazo i-eriyali kazibuthe ezisetyenziswa ngokuqhelekileyo izihlanganisi N intloko, SMA, BNC, TNC, njl, indoda nomfazi, khetha i-eriyali kufuneka ithenge isinxibelelanisi esihambelana nesixhobo.
Imiba ephambili yokusetyenziswa kwe-antenna yamagnetic
Ukukucacisela nje, kutheni isitya sokufunxa sincamathela kwintsimbi?
Ukusuka kwiitweets zethu zangaphambili, sinokwazi ukuba ukusebenza kombane we-antenna kuhambelana ngokusondeleyo nendawo esetyenziswa kuyo, kwaye i-resonant frequency ichaphazeleka yi-dielectric constant of material ejikeleze i-antenna, kwaye ukusetyenziswa kwayo kunye nokusebenza kwayo akukwazi. yahlulwe kwiimfuno zemeko-bume yoyilo kunye nendawo yofakelo.
Iradiyetha ye-eriyali yesitya sokufunxa ekhankanywe ngasentla yi-eriyali engabonakaliyo.Ngokomgaqo womfanekiso, i-eriyali ye-unipolar enobude h kunye nomfanekiso wayo yenza i-oscillator elinganayo kunye nobude be-2h, intsimi yayo kwindawo ephezulu yesiqingatha ifana ne-oscillator ye-symmetric, kwaye amandla entsimi kwindawo esezantsi yesiqingatha. unothi
Ngokubanzi, i-eriyali yemagnethi isetyenziswa ikakhulu kwikhabhathi, uphahla lwemoto okanye okusingqongileyo okufanayo, ngoko iyilwe ngokwesiseko sekhabhinethi ezahlukeneyo kunye neemodeli zomzimba wemoto, ukuze ubungakanani bentsimbi yomhlaba inxalenye yamaza kanomathotholo. ubude be-antenna buba yinxalenye ye-eriyali.Ke ngoko, indawo yofakelo eyahlukileyo iya kuchaphazela ngokuthe ngqo utshintsho loyilo lweeparamitha zombane ze-eriyali, ngakumbi i-resonant frequency kunye ne-radiation direction.
Umzobo wemitha yemitha ye-antenna ye-unipolar enekota enye kwi-disk enesiphelo (ukusetyenziswa okubonakalayo, idiski yentsimbi esekelwe phantsi ilinganiselwe kwaye ayikwazi ukwenza umfanekiso opheleleyo wesipili), kwaye kukwakho ukusasazeka kwemitha kwindawo esezantsi yesiqingatha (impembelelo ye-diffraction). ).
Ukusebenza kwe-antenna ye-magnetic sucker yahluke ngokupheleleyo xa i-adsorbed kumzimba wesinyithi wobukhulu obahlukeneyo.Ke ngoko, xa usebenzisa i-eriyali yokufunxa, sicebisa la manqaku mabini alandelayo:
I-1, kufuneka ibhengezwe phezulu kwekhabhinethi okanye i-locomotive ukuqinisekisa ukuphakama kunye nolwalathiso lwe-radiation, ukuze udlale ukusebenza kakuhle kwe-antenna;Ukuba ifakwe kwezinye iindawo, iya kubangela utshintsho kwi-wave wave, iphethini yolwalathiso kunye ne-Angle yokuphakama, echaphazela uluhlu lonxibelelwano.
I-2, kangangoko kunokwenzeka ukufaka i-antenna kwindawo ebanzi yombono, ugweme ukufakwa kwi-shaft okanye kwindawo eyinkimbinkimbi ye-electromagnetic, ngale ndlela kuphela inokuphucula umgangatho wonxibelelwano, ukunciphisa ingxolo yangasemva kunye nezinye izinto eziphazamisayo ezingalindelekanga.
Ukusetyenziswa kwe-eriyali yamagnetic
Xa kuziwa ekusebenziseni i-eriyali kazibuthe, makhe siqale sithethe ngeenzuzo zayo.Ukuba ifakwe ngokuchanekileyo, i-eriyali yokufunxa inomlinganiselo ongcono wokuma wamaza kunye nempumelelo ephezulu kune-eriyali eyakhelweyo, kwaye akukho mfuneko yokwenza ngokwezifiso.Nge-antenna yeglue kwi-frequency band efanayo kunye nobukhulu besakhiwo, inzuzo iphezulu, umgama wokuhambisa umde, kwaye izikhundla ezahlukeneyo zofakelo zinokukhethwa ngokweemfuno zokusetyenziswa.
Ukongeza kwezi zibonelelo zingentla, i-antenna yokufunxa nayo inoluhlu olubanzi lokusetyenziswa, ngaphezu kwemishini yethu yokuthengisa ebonakalayo yemihla ngemihla, iikhabhinethi ezicacileyo, i-radio yemoto, ingasetyenziselwa kwiimodyuli ezingenazintambo kunye namasango angenazintambo kunye neemfuno zokuzuza okuphakathi.
I-antenna yamagnetic ingasetyenziswa kwibhokisi yombane yangaphandle, imoto.Xa isetyenziswe ngaphandle, i-radome inokwenziwa nge-fiberglass kunye nezinye izinto, ezinokungena emanzini kunye nomoya.
I-antenna yemagnethi ingasetyenziselwa koomatshini bokuthengisa, isiseko se-eriyali yi-sucker enamandla yamagnetic, kulula ukuyifaka, akukho lula ukuwa.
I-antenna yemagnethi isenokusetyenziswa kwimitha yokufunda engenazingcingo, ubume be-eriyali bukhanya, imbonakalo entle
Ixesha lokuposa: Jul-02-2023
