Umlando wezimpondo zezimpondo uhlehlela emuva ku-1897, lapho umcwaningi womsakazo u-Jagadish Chandra Bose enza imiklamo yokuhlola eyiphayona esebenzisa ama-microwave.Kamuva, u-GC Southworth kanye noWilmer Barrow basungula isakhiwo se-antenna yesimanje ngo-1938 ngokulandelana.Kusukela lapho, imiklamo ye-antenna yophondo iye yacwaningwa ngokuqhubekayo ukuze ichaze amaphethini abo emisebe nezindlela zokusebenza emikhakheni eyahlukene.Lawa ma-antenna adume kakhulu emkhakheni we-waveguide transmission nama-microwaves, yingakho avame ukubizwa ngokuthi.ama-antenna e-microwave.Ngakho-ke, lesi sihloko sizohlola ukuthi izimpondo zophondo zisebenza kanjani kanye nokusetshenziswa kwazo emikhakheni ehlukahlukene.
Yini i-antenna yophondo?
A i-antenna yophondoi-antenna eyisimbobo eklanyelwe ngokuqondile amaza e-microwave anomkhawulo obanzi noma omise okwephondo.Lesi sakhiwo sinikeza i-antenna ukuqondisa okukhulu, okuvumela isignali ekhishiwe ukuthi idluliselwe kalula kumabanga amade.Ama-antenna ophondo ikakhulukazi asebenza kumafrikhwensi e-microwave, ngakho-ke ibanga lawo lemvamisa ngokuvamile liyi-UHF noma i-EHF.
I-antenna ye-RFMISO yophondo RM-CDPHA618-20 (6-18GHz)
Lawa ma-antenna asetshenziswa njengezimpondo zokuphakela izimpondo ezinkulu njenge-parabolic kanye nezimpondo eziqondisayo.Izinzuzo zabo zihlanganisa ubulula bokuklama nokulungiswa, isilinganiso segagasi sokuma esiphansi, ukuqondisa okumaphakathi, kanye nomkhawulokudonsa obanzi.
Ukwakhiwa nokusebenza kwe-antenna
Imiklamo ye-antenna yophondo ingasetshenziswa kusetshenziswa ama-waveguide amise okwempondo ukuze kudluliswe futhi kwamukele amasiginali we-microwave frequency.Imvamisa, asetshenziswa ngokuhambisana nokuphakelayo kwe-waveguide namaza omsakazo aqondile ukuze adale imishayo emincane.Ingxenye evuthayo ingaba yizimo ezihlukahlukene, njengesikwele, i-conical, noma i-rectangular.Ukuqinisekisa ukusebenza okufanele, ubukhulu be-antenna kufanele bube buncane ngangokunokwenzeka.Uma ubude begagasi bukhulu kakhulu noma usayizi wophondo mncane, uthi ngeke lusebenze kahle.
Umdwebo wohlaka lwe-antenna
Ku-antenna yophondo, ingxenye yamandla esigameko ikhishwa ngaphandle komnyango we-waveguide, kuyilapho wonke amandla aboniswa emuva kusukela emnyango ofanayo ngoba umnyango uvulekile, okuholela ekufaneni okungalungile phakathi kwesikhala nesikhala. i-waveguide.Ukwengeza, emaphethelweni e-waveguide, i-diffraction ithinta amandla omsakazo we-waveguide.
Ukuze unqobe ukushiyeka kwe-waveguide, ukuvuleka kokugcina kuklanywe ngendlela yophondo lwe-electromagnetic.Lokhu kuvumela uguquko olubushelelezi phakathi kwesikhala ne-waveguide, okuhlinzeka ngokuqondisa okungcono kwamaza omsakazo.
Ngokushintsha i-waveguide njengesakhiwo sophondo, ukungaqhubeki kanye nokuphazamiseka okungu-377 ohm phakathi kwesikhala ne-waveguide kuyasuswa.Lokhu kuthuthukisa ukuqondisa kanye nenzuzo ye-antenna yokudlulisa ngokunciphisa i-diffraction emaphethelweni ukuze kunikezwe amandla esigameko akhishelwa phambili.
Nansi indlela i-antenna esebenza ngayo: Uma umkhawulo owodwa we-waveguide ujabule, kukhiqizwa inkambu kazibuthe.Endabeni yokusakazeka kwe-waveguide, inkambu esakazayo ingalawulwa ngezindonga ze-waveguide ukuze insimu ingasakazeki ngendlela eyindilinga kodwa ngendlela efana nokusakazwa kwesikhala esikhululekile.Uma inkambu edlulayo ifika ekugcineni kwe-waveguide, isakazeka ngendlela efanayo nasendaweni ekhululekile, ngakho-ke i-wavefront eyindilinga itholakala ekugcineni kwe-waveguide.
Izinhlobo ezijwayelekile zezimpondo zezimpondo
I-Standard Gain Horn Antennawuhlobo lwe-antenna olusetshenziswa kakhulu ezinhlelweni zokuxhumana ezinenzuzo engaguquki kanye ne-beamwidth.Lolu hlobo lwe-antenna lufanele izinhlelo zokusebenza eziningi futhi lunganikeza ukumbozwa kwesignali okuzinzile nokuthembekile, kanye nokusebenza kahle kokudluliselwa kwamandla nekhono elihle lokulwa nokuphazamiseka.Izimpondo ezijwayelekile zokuthola inzuzo zivame ukusetshenziswa kakhulu kwezokuxhumana ngeselula, ukuxhumana okungaguquki, ukuxhumana ngesathelayithi neminye imikhakha.
Izincomo zomkhiqizo we-antenna ye-RFMISO ejwayelekile:
RM-SGHA159-20 (4.90-7.05 GHz)
RM-SGHA90-15 (8.2-12.5 GHz)
RM-SGHA284-10 (2.60-3.95 GHz)
I-Broadband Horn Antennawuthi olusetshenziselwa ukwamukela nokudlulisa amasignali angenantambo.Inezici zebhendi ebanzi, ingamboza amasiginali kumabhendi amafrikhwensi amaningi ngesikhathi esisodwa, futhi ingagcina ukusebenza kahle kumabhendi amafrikhwensi ahlukene.Ivamise ukusetshenziswa ezinhlelweni zokuxhumana ezingenazintambo, izinhlelo ze-radar, nezinye izinhlelo zokusebenza ezidinga ukumbozwa kwebhendi ebanzi.Isakhiwo sayo sokuklama sifana nokuma komlomo wensimbi, ongamukela kahle futhi udlulise amasignali, futhi unekhono eliqinile lokulwa nokuphazamiseka kanye nebanga elide lokudlulisela.
Izincomo zomkhiqizo we-antenna ye-RFMISO wideband:
RM-BDHA618-10 (6-18 GHz)
RM-BDPHA4244-21 (42-44 GHz)
RM-BDHA1840-15B (18-40 GHz)
I-Dual Polarized Horn Antennaiwuthi oluklanyelwe ngokukhethekile ukudlulisa nokwamukela amagagasi kagesi ngezindlela ezimbili ze-orthogonal.Ivamise ukuqukatha izimpondo ezimbili zikathayela ezibekwe zibheke phezulu, ezingadlulisela kanyekanye futhi zamukele amasignali agqamile eziqondisweni ezivundlile nezime mpo.Ivame ukusetshenziswa ku-radar, ezokuxhumana ngesathelayithi kanye nezinhlelo zokuxhumana zeselula ukuze kuthuthukiswe ukusebenza kahle nokuthembeka kokudluliswa kwedatha.Lolu hlobo lwe-antenna lunomklamo olula nokusebenza okuzinzile, futhi lusetshenziswa kakhulu kubuchwepheshe besimanje bezokuxhumana.
Isincomo somkhiqizo we-antenna ye-RFMISO dual polarization horn:
RM-BDPHA0818-12 (0.8-18 GHz)
RM-CDPHA218-15 (2-18 GHz)
RM-DPHA6090-16 (60-90 GHz)
I-Circular Polarization Horn Antennaiwuthi oluklanywe ngokukhethekile olukwazi ukwamukela futhi ludlulise amagagasi kagesi eziqondisweni eziqondile nezivundlile ngesikhathi esisodwa.Ngokuvamile iqukethe i-waveguide eyindilinga kanye nomlomo wensimbi omise okukhethekile.Ngalesi sakhiwo, ukudluliswa kwe-circularized polarized kanye nokwamukela kungafinyelelwa.Lolu hlobo lwe-antenna lusetshenziswa kakhulu kuma-radar, ezokuxhumana kanye nezinhlelo zesathelayithi, luhlinzeka ngamakhono okudlulisela isignali anokwethenjelwa kanye nokwamukela.
Izincomo zomkhiqizo we-antenna ye-RFMISO eyindilinga eyindilinga:
RM-CPHA82124-20 (8.2-12.4GHz)
RM-CPHA09225-13 (0.9-2.25GHz)
RM-CPHA218-16 (2-18 GHz)
Izinzuzo ze-antenna yophondo
1. Azikho izingxenye ezinomsindo futhi zingasebenza kumkhawulokudonsa obanzi kanye nebanga lefrikhwensi ebanzi.
2. Isilinganiso se-beamwidth sivamise ukuba ngu-10:1 (1 GHz – 10 GHz), ngezinye izikhathi kufika ku-20:1.
3. Umklamo olula.
4. Kulula ukuxhuma kumugqa we-waveguide kanye ne-coaxial feed.
5. Ngesilinganiso esiphansi se-wave wave (SWR), singanciphisa amagagasi amile.
6. Ukufanisa okuhle kwe-impedance.
7. Ukusebenza kuzinzile kulo lonke ibanga lefrikhwensi.
8. Ingakha amapheshana amancane.
9. Isetshenziswa njengophondo lokuphakelayo kuma-antenna amakhulu ama-parabolic.
10. Nikeza indlela engcono.
11. Gwema ukuma kwamagagasi.
12. Azikho izingxenye ezinomsindo futhi zingasebenza kumkhawulokudonsa obanzi.
13. Inokuqondisa okuqinile futhi inikeza isiqondiso esiphezulu.
14. Inikeza ukucabanga okuncane.
Ukusetshenziswa kwe-antenna yophondo
Lawa ma-antenna asetshenziselwa ikakhulukazi ucwaningo lwezinkanyezi kanye nezicelo ezisekelwe kuma-microwave.Angasetshenziswa njengama-elementi okuphakelayo ukukala amapharamitha e-antenna elabhorethri.Kumafrikhwensi e-microwave, lawa ma-antenna angasetshenziswa inqobo nje uma ezuza ngokusesilinganisweni.Ukufeza ukusebenza kwenzuzo emaphakathi, usayizi we-antenna yophondo kufanele ube mkhulu.Lezi zinhlobo zama-antenna zifanele amakhamera wejubane ukugwema ukuphazamiseka nempendulo edingekayo yokubonisa.Izibonisi ze-Parabolic zingajatshuliswa ngokuphakelayo izinto ezifana nezimpondo zophondo, ngaleyo ndlela zikhanyise izibonisi ngokusizakala ngokuqondisa okuphezulu ezikunikezayo.
Ukuze uthole okwengeziwe sicela usivakashele
Ucingo: 0086-028-82695327
Isikhathi sokuthumela: Mar-28-2024
