Imbali yee-antenna ze-horn iqala ngo-1897, xa umphandi werediyo uJagadish Chandra Bose wenza uyilo lokuqala lovavanyo esebenzisa ii-microwave. Kamva, u-GC Southworth kunye noWilmer Barrow basungula ulwakhiwo lwe-antenna ye-horn yanamhlanje ngo-1938 ngokulandelelana. Ukususela ngoko, uyilo lwee-antenna ze-horn luye lwafundwa rhoqo ukuchaza iipateni zazo zemitha kunye nokusetyenziswa kwazo kwiindawo ezahlukeneyo. Ezi antenna zidumile kakhulu kwicandelo lokuhambisa i-waveguide kunye nee-microwave, yiyo loo nto zihlala zibizwa ngokubaii-antenna ze-microwaveNgoko ke, eli nqaku liza kuhlola indlela ezisebenza ngayo ii-antenna ze-horn kunye nokusetyenziswa kwazo kwiinkalo ezahlukeneyo.
Yintoni i-antenna ye-horn?
A i-antenna yephondoyi-antenna evulekileyo eyenzelwe ngokukodwa ii-frequency ze-microwave ezinesiphelo esibanzi okanye esimile okwe-horn. Esi sakhiwo sinika i-antenna isikhokelo esikhulu, sivumela isignali ekhutshwayo ukuba idluliselwe ngokulula kumgama omde. Ii-antenna ze-Horn zisebenza kakhulu kwii-frequency ze-microwave, ngoko ke uluhlu lwazo lwee-frequency ludla ngokuba yi-UHF okanye i-EHF.
I-antenna ye-RFMISO horn RM-CDPHA618-20 (6-18GHz)
Ezi antenna zisetyenziswa njengeempondo zokutya kwii-antenna ezinkulu ezifana nee-antenna ze-parabolic kunye neze-directional. Iingenelo zazo ziquka ukulula koyilo kunye nohlengahlengiso, umlinganiselo wamaza omiyo ophantsi, ulawulo oluphakathi, kunye ne-bandwidth ebanzi.
Uyilo kunye nokusebenza kwe-antenna yephondo
Uyilo lwe-antenna yempondo lunokusetyenziswa kusetyenziswa ii-waveguides ezimile okwempondo zokudlulisa nokufumana imiqondiso ye-microwave ye-frequency yerediyo. Ngokwesiqhelo, zisetyenziswa kunye nee-waveguides feeds kunye namaza erediyo ngqo ukwenza imisebe emincinci. Icandelo elivuthayo linokuza ngeemilo ezahlukeneyo, ezifana nesikwere, ikhoni, okanye uxande. Ukuqinisekisa ukusebenza ngokufanelekileyo, ubungakanani be-antenna kufuneka bube mncinci kangangoko. Ukuba ubude bomda bukhulu kakhulu okanye ubungakanani be-horn buncinci, i-antenna ayizukusebenza ngokufanelekileyo.
Umzobo womzobo we-antenna yephondo
Kwi-antenna ye-horn, inxalenye yamandla esiganeko ikhutshwa ngaphandle komnyango we-waveguide, ngelixa amanye amandla ebonakala emva ukusuka kumnyango ofanayo kuba umnyango uvulekile, nto leyo ebangela ukuba kubekho ukungahambelani kakuhle kwe-impedance phakathi kwendawo kunye ne-waveguide. Ukongeza, emaphethelweni e-waveguide, i-diffraction ichaphazela amandla okusasazeka kwe-waveguide.
Ukuze koyiswe iziphene ze-waveguide, ukuvulwa kokugqibela kuyilwe ngohlobo lwe-electromagnetic horn. Oku kuvumela utshintsho oluhamba kakuhle phakathi kwendawo kunye ne-waveguide, okubonelela ngesikhokelo esingcono kumaza erediyo.
Ngokutshintsha i-waveguide njengesakhiwo se-horn, ukungakwazi ukuqhubeka kunye ne-377 ohm impedance phakathi kwendawo kunye ne-waveguide kuyasuswa. Oku kuphucula i-directivity kunye nokufumana i-antenna yokudlulisa ngokunciphisa i-diffraction emaphethelweni ukuze kubonelelwe ngamandla esiganeko akhutshwayo kwicala elingaphambili.
Nantsi indlela esebenza ngayo i-antenna yexilongo: Nje ukuba elinye icala le-waveguide livuselelwe, kuvela intsimi yemagnethi. Kwimeko yokusasazwa kwe-waveguide, intsimi esasaza ingalawulwa ngeendonga ze-waveguide ukuze intsimi ingasasazeki ngendlela engqukuva kodwa ngendlela efana nokusasazwa kwendawo ekhululekileyo. Nje ukuba intsimi edlulayo ifikelele kwisiphelo se-waveguide, isasaza ngendlela efanayo nakwindawo ekhululekileyo, ngoko ke i-wavefront engqukuva ifunyanwa kwisiphelo se-waveguide.
Iindidi eziqhelekileyo zee-antennas ze-horn
I-Antenna yeHorn yeGain esemgangathweniluhlobo lwe-antenna esetyenziswa kakhulu kwiinkqubo zonxibelelwano ezine-fixed gain kunye ne-beadwidth. Olu hlobo lwe-antenna lufanelekile kwiintlobo ezininzi zezicelo kwaye lunokubonelela nge-signal coverage ezinzileyo nethembekileyo, kunye nokusebenza kakuhle kokudlulisa amandla aphezulu kunye nokukwazi okuhle kokulwa nokuphazamiseka. Ii-antenna eziqhelekileyo ze-gain horn zihlala zisetyenziswa kakhulu kunxibelelwano lweselula, unxibelelwano oluzinzileyo, unxibelelwano lwesathelayithi nakwezinye iindawo.
Iingcebiso zemveliso ye-antenna ye-RFMISO standard gain horn:
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-Antenna yeBroadband Hornyi-antenna esetyenziselwa ukwamkela nokudlulisa imiqondiso engenazingcingo. Ineempawu zebhendi ebanzi, inokugubungela imiqondiso kwiibhendi ezininzi zefrikhwensi ngaxeshanye, kwaye inokugcina ukusebenza kakuhle kwiibhendi ezahlukeneyo zefrikhwensi. Isetyenziswa rhoqo kwiinkqubo zonxibelelwano ezingenazingcingo, iinkqubo zeradar, kunye nezinye izicelo ezifuna ukugubungela ibhendi ebanzi. Ulwakhiwo lwayo loyilo lufana nomfanekiso womlomo wentsimbi, onokufumana nokudlulisa imiqondiso ngempumelelo, kwaye unamandla okulwa nokuphazamiseka kunye nomgama omde wokudlulisela.
Iingcebiso zemveliso ye-antenna ye-RFMISO wideband horn:
I-RM-BDHA618-10 (6-18 GHz)
RM-BDPHA4244-21（42-44 GHz）
RM-BDHA1840-15B（18-40 GHz）
I-Antenna yeempondo ezimbini eziPhazanyisiweyoyi-antenna eyenzelwe ngokukodwa ukudlulisa nokufumana amaza e-electromagnetic kwiindlela ezimbini ezi-orthogonal. Idla ngokuba nee-antenna ezimbini ezibekwe ngokuthe nkqo ezi-corrugated horn, ezinokudlulisa nokufumana imiqondiso e-polarized ngaxeshanye kwiindlela ezithe tye nezithe nkqo. Ihlala isetyenziswa kwiinkqubo zonxibelelwano lwe-radar, i-satellite kunye neefowuni ukuphucula ukusebenza kakuhle kunye nokuthembeka kokudluliselwa kwedatha. Olu hlobo lwe-antenna lunoyilo olulula kunye nokusebenza okuzinzileyo, kwaye lusetyenziswa kakhulu kubuchwepheshe bonxibelelwano banamhlanje.
Ingcebiso yemveliso ye-antenna ye-RFMISO yophondo oluphindwe kabini:
RM-BDPHA0818-12 （0.8-18 GHz）
I-RM-CDPHA218-15 （2-18 GHz）
RM-DPHA6090-16 (60-90 GHz)
I-Antenna yePolarization Horn yeSetyhulayi-antenna eyilwe ngokukodwa enokufumana nokudlulisa amaza e-electromagnetic kwicala elithe nkqo nelithe tye ngaxeshanye. Ihlala iqulathe i-waveguide ejikelezayo kunye nomlomo wentsimbi omile ngokukodwa. Ngale ndlela, ukuhanjiswa kunye nokwamkelwa okujikelezileyo kunokufezekiswa. Olu hlobo lwe-antenna lusetyenziswa kakhulu kwiinkqubo ze-radar, zonxibelelwano kunye nezesathelayithi, zibonelela ngezakhono zokudlulisela isignali ezithembekileyo kunye nokwamkela.
Iingcebiso zemveliso ye-antenna ye-RFMISO ejikelezileyo ene-polarized horn:
RM-CPHA82124-20（8.2-12.4GHz）
RM-CPHA09225-13 (0.9-2.25GHz)
RM-CPHA218-16 （2-18 GHz）
Iingenelo ze-antenna yephondo
1. Akukho zixhobo ezivakalayo kwaye zinokusebenza kwi-bandwidth ebanzi kunye noluhlu olubanzi lweefrikhwensi.
2. Umlinganiselo we-beadwidth udla ngokuba yi-10:1 (1 GHz – 10 GHz), ngamanye amaxesha ukuya kuthi ga kwi-20:1.
3. Uyilo olulula.
4. Kulula ukuqhagamshela kwi-waveguide kunye ne-coaxial feed lines.
5. Ngomlinganiselo wamaza asezantsi (SWR), inokunciphisa amaza amileyo.
6. Ukuhambelana okuhle kwe-impedance.
7. Ukusebenza kuzinzile kulo lonke uluhlu lwefrikhwensi.
8. Ingenza amaphecana amancinci.
9. Isetyenziswa njengephondo lokutya kwii-antenna ezinkulu eziziiparabolic.
10. Nika indlela engcono yokwenza izinto.
11. Kuphephe amaza amiyo.
12. Akukho zixhobo ezivakalayo kwaye zinokusebenza kwi-bandwidth ebanzi.
13. Inesikhokelo esiqinileyo kwaye inika isikhokelo esiphakamileyo.
14. Ayibonisi ngcamango ingako.
Ukusetyenziswa kwe-antenna yophondo
Ezi antenna zisetyenziswa kakhulu kuphando lweenkwenkwezi kunye nezicelo ezisekelwe kwi-microwave. Zingasetyenziswa njengezinto zokutya zokulinganisa iiparameter ezahlukeneyo ze-antenna kwilebhu. Kwii-frequency ze-microwave, ezi antenna zingasetyenziswa logama nje zine-gain ephakathi. Ukuze kufezekiswe ukusebenza kwe-medium gain, ubungakanani be-antenna ye-horn kufuneka bube bukhulu. Ezi ntlobo ze-antenna zifanelekile kwiikhamera zesantya ukuze kuthintelwe ukuphazamiseka kwempendulo yokubonakalisa efunekayo. I-parabolic reflectors inokuvuselelwa zizinto zokutya ezifana ne-horn antennas, ngaloo ndlela zikhanyisela i-reflectors ngokusebenzisa ithuba le-directivity ephezulu ezibonelela ngayo.
Ukuze wazi okungakumbi nceda undwendwele
Ifowuni: 0086-028-82695327
Ixesha leposi: Matshi-28-2024
