I-FMUSER 532-1602 kHz I-Antenna ye-Medium Wave Biconical Efinyelela Kumandla Okufaka angu-50kW

Ini Ih Mi-edium Winyoni Bokufanekisa Ai-ntenna futhi How It Wi-orks

I-antenna ye-wave biconical emaphakathi iwuhlobo lwe-wideband antenna evamise ukusetshenziselwa ukwamukela ukusakazwa komsakazo ebangeni eliphakathi kwamagagasi. Iqukethe izinto ezimbili ezilinganayo ezimise okwekhoni ezibekwe iphoyinti-kuya-iphuzu, ezifana nengilazi yehora noma ipheya lamakhoni ka-ayisikhilimu ahlanganiswe ezisekelweni zawo. Lo mklamo oyingqayizivele uvumela ukwamukelwa kwebanga elibanzi lamaza ngaphakathi kwebhendi yamagagasi aphakathi nendawo, ngokuvamile asukela ku-530 kHz kuya ku-1710 kHz.

Buka uchungechunge lwethu lwamavidiyo okwakhiwa kwe-10kW AM esizeni e-Cabanatuan, e-Philippines:

I-antenna ye-biconical wave emaphakathi isebenza ngokususelwe kumgomo wemisebe kagesi kanye nokwamukela. Lapho igagasi kazibuthe kagesi, eliphethe isignali yomsakazo, lifika othini, libangela amandla kagesi azungezayo ezintweni zothi. Lokhu kwamanje kugeleza phakathi kwezigaxa ezimbili, kudala inkambu kazibuthe ezungeze uthi.

Ukwakheka kwe-antenna ye-biconical symmetrical iqinisekisa ukuthi inkambu kazibuthe ikhanya ngokulinganayo kuzo zonke izinhlangothi, iyenze ibe yonke indawo. Ngenxa yalokho, i-antenna ingakwazi ukuthwebula amasignali omsakazo kuwo wonke ama-engeli, okuvumela ukwamukela okuthembekile kusuka ezindleleni ezihlukahlukene.

Izakhi ezimise okwekhoni ze-antenna ye-biconical ziklanywe ngokucophelela ukuze kutholwe ukuzwakala kwemisindo ebangeni elifiswayo lamaza aphakathi nendawo. Le resonance inika amandla ukudluliswa okusebenzayo kwamandla kazibuthe atholiwe kumamukeli axhunyiwe noma isistimu yokusakaza.

Ngenxa yamandla ayo e-wideband kanye nokwamukela indawo yonke, i-medium wave biconical antenna isetshenziswa kabanzi ezinhlelweni zokusakaza zomsakazo. Ikhono layo lokuthwebula amasignali kuzo zonke izinkomba liyenza ilungele izimo lapho ukwamukela okungaguquki nokuthembekile kuyadingeka. Idizayini nokusebenza kwe-antenna ye-biconical wave emaphakathi inegalelo ekusebenzeni kwayo ekuqinisekiseni ukudluliswa okusebenzayo nokwamukela amasiginali omsakazo wegagasi elimaphakathi.

Izici main

1. I-No Ground Grid: Isakhiwo se-biconical siqeda isidingo segridi yaphansi, sivumela unyawo oluhlangene. Lokhu kuvumelana nezimo kwenza i-antenna ifakwe ophahleni lwendlu noma amagquma, inikeze izinketho zendawo eziguquguqukayo.
2. Ukuzinza Okuhle Kakhulu: Izigaxa ezingenhla neziphansi zisiza ngokuqondile ukuhamba kwamaza omsakazo, zingathintwa izinto ezingazinzile njengokumelana nomhlabathi, izimo zenhlabathi, uhlaza, izinkathi zonyaka, nesimo sezulu. Ama-vacuum capacitor enziwe ngokwezifiso anamandla kagesi aphezulu kanye nezinga lokushisa eliphezulu aqinisekisa ukusebenza okuzinzile, ngisho nasezifundeni ezinomehluko wokushisa odlula amadigri angu-60 unyaka wonke, ngaphandle kokudinga ukulungiswa mathupha.
3. Ukungcoliswa Kwe-Electromagnetic Okuphansi: I-antenna ye-biconical isebenzisa indlela ehlukile yokuthunyelwa, iqinisekisa ukuzwakala okuphelele kwerediyetha kumaza okuphatha. Ngenxa yalokhu, inkundla yemisebe ivaleleke endaweni eseduze ye-antenna, inciphisa ukungcoliswa kazibuthe kanye nokuphazamiseka kwezakhiwo ezizungezile. Kungabhekwa njenge-antenna enobungani bemvelo noma "eluhlaza".
4. Ukusebenza Okuphakeme Kwemisebe: Ukungabikho kokulahlekelwa ukumelana nomhlabathi, kuhlanganiswe nendlela eyingqayizivele yokufanisa esetshenziswa kunethiwekhi yokuthunyelwa, kuthuthukisa ukusebenza kwesilinganiso samagagasi okuma kanye nomkhawulokudonsa. Ngokudlulisela amandla okufaka ngokuqondile kurediyetha ngokusekelwe esilinganisweni se-impedance, i-antenna ifinyelela ukusebenza kahle kwemisebe okuqhathaniseka naleyo ye-antenna yendabuko engu-λ/4 wevelength ngenkathi yehlisa kakhulu usayizi wayo.
5. Ukuvikela Umbani Okusebenzayo: I-inductance yenethiwekhi ifaniswe ukuze kuqinisekiswe ukuthi ukuthululwa kwe-radiator kuya phansi akudluli u-50 µH, okuwu-1/40 kuphela wokuthululwa kombhoshongo wendabuko. I-impedance yokuvikela umthwalo emandleni ombani ingu-<0.3 Ω (i-short circuit inductance <1 µH), okuholela kumphumela omuhle kakhulu wokuvikela umbani.
6. Ukuphepha, Ukwethembeka, kanye Nokugcinwa Kwamahhala: Ikhoni ephansi ezinzile futhi enokwethenjelwa ifaka isisekelo sesakhiwo samashubhu amane, kuyilapho induku ekhazimulayo yekhoni ephezulu kanye nesakhiwo se-rod-fin kunikeza ukumelana komoya okuncane. Umgodi ophakathi nendawo uhlanganisa ukwakheka kwenqubo yokuvikela eklanywe ngokukhethekile kanye nezinto eziningi eziyinhlanganisela, okuqinisekisa ukumelana okuphezulu komoya nokuzamazama komhlaba. Umzimba wombhoshongo ufakwe ama-galvanized we-hot-dip, uhlinzeka ngokusebenza okuhle kakhulu kwe-anti-corrosion futhi awudingi ukulungiswa.

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