Ama-antenna e-Horn aphakathi kwama-antenna aqondisa izinto asetshenziswa kakhulu kubunjiniyela be-microwave kanye nama-millimeter-wave. Isakhiwo sawo esilula semishini, izici zomsebe ezibikezelwayo, ukubonakaliswa okuphansi, kanye nekhono lokufinyelela inzuzo ephakathi kuya kwephezulu kuwenza abe usizo ekulinganisweni kwe-antenna, ekuhlolweni kwe-EMC, e-radar, ezinhlelweni zokuxhumana, ezinhlelweni zokuphakelayo, kanye nasemalabhorethri e-RF.
I-antenna yophondo ingabhekwa njenge-umhlahlandlela wamagagasi onembobo evuleka kancane kancaneEsikhundleni sokuvumela amagagasi kagesi ukuthi abhekane noshintsho olusheshayo kusuka ku-waveguide kuya endaweni ekhululekile, ingxenye evuthayo inikeza ushintsho oluhamba kancane kancane. Lokhu kusiza ekuthuthukiseni ukuhambisana kwe-impedance futhi kuqondisa amandla amaningi kagesi abe yi-radiation beam elawulwayo.
Kuye nge-geometry ye-waveguide kanye nendlela i-aperture enwetshwa ngayo, ama-antenna e-horn angaklanywa ngezindlela eziningana, okuhlanganisaizimpondo zesigaba, izimpondo ze-pyramidal, kanye nezimpondo ezi-conicalIsihloko sokuqala sokubhekisela sisebenzisa lezi zilungiselelo ezintathu njengesingeniso esiyinhloko sezakhiwo ze-antenna ye-horn.
1. Isebenza Kanjani I-Antena Yesiphondo?
Umhlahlandlela wamagagasi uvimba amandla kagesi ngaphakathi kwesakhiwo sokuqondisa. Lapho igagasi eliqondiswayo lifika ekugcineni okuvulekile, ingxenye yamandla iphuma iye esikhaleni esikhululekile, kuyilapho ingxenye ingase ibonakale ngenxa yokushintsha phakathi komhlahlandlela wamagagasi kanye nezithiyo zesikhala esikhululekile.
I-antenna yophondo inciphisa ukushesha kwalolu shintsho ngokwandisa kancane kancane ingxenye yesiphambano se-waveguide eya endaweni evulekile.
Njengoba igagasi likagesi kagesi lisakazeka engxenyeni evuvukele, insimu iyanda phezu kwembobo enkulu. Imbobo ibe isiphuma iye esikhaleni esikhululekile bese ikhiqiza umsebe oqondisa uhlangothi.
Ngakho-ke, i-flare ifeza izinjongo ezimbili ezibalulekile:
- Inikeza ukuguquka okubushelelezi phakathi kwe-waveguide kanye nesikhala samahhala.
- Kwandisa ukuvuleka kwemisebe okuphumelelayo, okuvumela ukuqondiswa okukhulu kanye nokwanda.
Kubalulekile ukuqaphela ukuthi uphondo luyenzaakuqedi ngokuphelele ukubonakaliswa noma amaza amileKunalokho, uphondo oluklanywe kahle lunganciphisa ukubonakaliswa futhi lunikeze ukuhambisana okuhle kwe-impedance, okuvame ukubonakala ku-VSWR ephansi kakhulu.
Umfanekiso 1. I-antenna evamile yophondo ene-waveguide aperture evuleka kancane kancane.
2. Imvamisa Yokusebenza Kwama-Antenna Empondo
Ama-antenna empondo awanayo ibanga elilodwa lemvamisa jikelele.
Imvamisa yokusebenza kwazo inqunywa kakhulu yi-ubukhulu be-waveguide, imodi ye-waveguide, i-geometry ye-aperture, isakhiwo sokuphakelayo, kanye ne-bandwidth ehlosiwe.
Ama-antenna e-horn endabuko avame kakhulu kuma-microwave kanye nama-millimeter-wave frequency ngoba ubukhulu be-waveguide buba usizo njengoba ubude be-wavelength buncipha. Kodwa-ke, izakhiwo ze-broadband horn eziklanywe ngokukhethekile zingasebenza futhi kuma-frequency aphansi, kuyilapho ama-waveguide anembile anganwebeka kahle kuma-millimeter-wave kanye nama-sub-THz bands.
Isibonelo, imiklamo ye-antenna ye-horn ingatholakala kusukela kububanzi bamakhulu ama-megahertz kuya ngaphezu kwe-100 GHz. I-RF MISO okwamanje inikeza ukucushwa kwe-horn ye-broadband esebenza kusukela300–750 MHz, kanye nesembozo se-antenna yophondo oluyindilinga220–325 GHz, okubonisa ukuthi ububanzi bemvamisa esebenzayo yalo mndeni we-antenna bungabanzi kangakanani.
3. Izinhlobo Eziyinhloko Zama-Antenna Ezimpondo
3.1 I-Antenna Yezimpondo Zesifunda
Uphondo oluyindilinga lukhiqizwa lapho umugqa wamaza ongunxande uvulwa endaweni eyodwa kuphela.
Uma i-waveguide inwetshiwe ku-Indiza ye-elekthronikhi, isakhiwo sibizwa ngokuthiUphondo lwe-e-plane lomkhakhaUma ukwanda kwenzeka ku-Indiza ye-H, ibizwa ngokuthiuphondo lwe-H-plane lwesigaba.
Ngenxa yokuthi ubukhulu bokuvuleka buyanda endaweni eyodwa kuphela, ukwakheka kwemisebe kugqama kakhulu kuleyo ndawo ehambisanayo.
3.2 I-Antenna Yezimpondo Eziyi-Pyramidal
Uphondo oluyi-pyramidal lwakhiwa lapho umhlahlandlela wamagagasi ongunxande uvunguza kuzo zombili izinkomba ze-E-plane kanye ne-H-plane.
Isakhiwo esiphumelayo sifana nephiramidi enqunyiwe futhi sinikeza ukwanda komgodi kuzo zombili izilinganiso.
Izimpondo ze-pyramidal zisetshenziswa kabanzi njengeizimpondo zokuzuza ezijwayelekile kanye nama-antenna okubhekiselangoba amaphethini abo okuzuza kanye nemisebe angachazwa ngokunembile.
Isibonelo, i-RF MISO inikeza ama-antenna ajwayelekile e-gain horn kuwo wonke ama-microwave nama-millimeter-wave band amaningi. Umndeni wayo we-WR10 standard gain horn uhlanganisa amamodeli asebenza kusukela75 kuya ku-110 GHz, nge-gain ecacisiwe, i-VSWR, i-polarization kanye nezici ze-beadwidth.
3.3 I-Antena Yezimpondo Eziyindilinga
Uphondo oluyindilinga ngokuvamile lwakhiwa ngokwandisa kancane kancane umhlahlandlela wamaza oyindilinga uye endaweni evulekile eyindilinga.
Ngokungafani nophondo oluyi-pyramidal, oluvela ku-waveguide engunxande, uphondo oluyi-conical lune-geometry ejikelezayo elinganayo.
Ama-antenna e-conical horn avame ukusetshenziswa ezinhlelweni ze-microwave, i-millimeter-wave, i-feed kanye nezinhlelo zokulinganisa. Kuye ngesakhiwo se-feed kanye nenethiwekhi ye-polarization, angasekela futhi ukucushwa kwe-polarization okukhethekile.
Umfanekiso 2. Ukucushwa kwe-antenna evamile yezimpondo: Izimpondo ze-E-plane, izimpondo ze-H-plane, izimpondo ze-pyramidal neze-conical.
4. I-Angle Yokuvutha, Usayizi Wembobo kanye Nobude Bempondo
I-geometry yophondo inethonya eliqondile ekusebenzeni kwayo kwe-electromagnetic.
Imingcele emithathu ebalulekile yokuklama yile:
i-engeli yokugqama, usayizi wombhobho, kanye nobude bophondo.
Imbobo enkulu ngokuvamile inganikeza isiqondiso esiphezulu kanye nomsebe omncane, kodwa ukukhulisa nje i-engeli yokugqama akukhiqizi ngokuzenzakalelayo ukusebenza okungcono.
Uma uphondo lufushane kakhulu ngobukhulu obuthile bokuvuleka, kungase kuvele ukwehluka okukhulu kwesigaba kulo lonke ukuvuleka. Lokhu kunciphisa ukusebenza kahle kokuvula futhi kungalimaza iphethini yemisebe.
Ngakolunye uhlangothi, ukwenza uphondo lube lude kakhulu kwandisa usayizi kanye nesisindo somshini ngaphandle kokunikeza ukuthuthukiswa okulingana kokusebenza.
Ngakho-ke ukwakheka kwezimpondo kuhilela ukulinganisa:
- Usayizi wembobo
- I-engeli yokuqhuma
- Ubude
- Iphutha lesigaba
- Inzuzo
- Ububanzi be-beamwidth
- Ubukhulu bemishini
5. Iphethini Yokushiswa Kwemisebe Nezimpawu Zokushiswa Kwemisebe
Ama-antenna empondo ngokuvamile ayizi-radiator eziqondisa ngqo.
Amandla kagesi agxile kakhulu phambili ngokusebenzisa imbobo, okukhiqiza umsebe oyinhloko ochazwe ngokucacile kanye nama-sidelobes.
Ukunqunywa kwephethini yemisebe okubili kubaluleke kakhulu:
- Iphethini yemisebe ye-e-plane
- Iphethini yemisebe yendiza ye-H
IUbubanzi be-beam obungu-3 dBivame ukusetshenziswa ukuchaza ububanzi be-angular bomsebe oyinhloko phakathi kwamaphuzu amabili lapho amandla akhishwa khona ehla ngo-3 dB ngaphansi kwenani lawo eliphezulu.
Ngokuvamile, ukwandisa imbobo esebenzayo uma kuqhathaniswa nobude be-wavelength kwandisa ukuqondiswa futhi kuvame ukunciphisa umsebe.
Lobu budlelwano bungabonakala nasezintweni ezisebenza ngamagagasi e-millimeter-wave. Isibonelo, ama-RF MISO's 75–110 GHz standard gain horns achaza izici ze-E-plane kanye ne-H-plane beamwidth kanye nedatha ye-gain kanye ne-VSWR.
Umfanekiso 3. Umfanekiso wokwanda kwamagagasi kagesi kanye nemisebe ngokusebenzisa imbobo ye-horn.
6. Izinzuzo ze-Horn Antennas
Ama-antenna empondo anikeza izinzuzo eziningana zezinhlelo ze-RF kanye ne-microwave:
Ukuqondisa okuhle
Umgodi ovulekile ugxilisa imisebe ngasendleleni eya phambili.
Izici zemisebe ezingabikezelwa
Ama-antenna e-horn aklanywe kahle anganikeza amaphethini e-E-plane kanye ne-H-plane azinzile futhi achazwe kahle.
Ukuhambisana okuhle kwe-impedance
Ukushintsha kancane kancane kusuka ku-waveguide kuya endaweni ekhululekile kunganciphisa ukubonakaliswa futhi kusekele i-VSWR ephansi.
Inzuzo ephakathi kuya kwephezulu
Ubukhulu obuhlukene bokuvuleka kanye nobude bezimpondo kungaklanywa ukuze kuhlinzekwe amazinga ahlukene okuzuza.
Isakhiwo esilula kakhulu
Uma kuqhathaniswa nezakhiwo eziningi ze-antenna eziyinkimbinkimbi ezithola inzuzo ephezulu, izimpondo ezivamile ziqondile futhi ziqinile ngokomshini.
Ifanele ukulinganisa imvamisa ephezulu
Ukwakheka kwabo okusekelwe kumhlahlandlela wamaza kwenza ama-antenna empondo abe yigugu kakhulu ezinhlelweni zokulinganisa ama-microwave nama-millimeter-wave.
7. Ukucatshangelwa Komklamo kanye Nemikhawulo
Ama-antenna e-Horn nawo ahilela ukuhwebelana okuningana kobunjiniyela.
Ukwanda okuphezulu ngokuvamile kudinga umgodi kagesi omkhulu, okungase kwandise ubukhulu obubonakalayo be-antenna.
Ubudlelwano phakathi kosayizi wembobo, ubude bempondo kanye ne-engeli ye-flare kumele bulawulwe ngokucophelela ukuze kulondolozwe ukusatshalaliswa kwesigaba okwamukelekayo kuyo yonke imbobo.
Emazameni aphezulu kakhulu, ukunemba komshini, ikhwalithi yendawo, ubukhulu be-waveguide kanye nokuqondaniswa kwe-flange kuba yinto ebaluleke kakhulu ngoba ngisho namaphutha amancane kakhulu omshini angamelela ingxenye enkulu yobude be-wavelength.
Ngakho-ke onjiniyela kudingeka bahlole hhayi nje kuphela ububanzi benzuzo kanye nemvamisa, kodwa futhi:
I-VSWR, i-polarization, ukusebenza kwe-cross-polarization, ububanzi be-beammitth, izinga le-sidelobe, isikhombimsebenzisi se-RF, ukuphathwa kwamandla kanye nokubekezelelana komshini.
8. Ukusetshenziswa kwama-Horn Antennas
Ngenxa yemisebe yazo eqondisa izinto, izici ezizinzile kanye nokuhambisana nezinhlelo ze-waveguide, ama-antenna e-horn asetshenziswa kabanzi ku:
- Ukulinganiswa kokwanda kwe-antenna
- Ukulinganiswa kwephethini yemisebe
- Ukuhlolwa kwe-EMC kanye ne-EMI
- Izinhlelo ze-radar
- Ukuxhumana nge-microwave kanye ne-millimeter-wave
- Ukuhlolwa kwe-antenna yesathelayithi
- Ukuthola isiqondiso nokuqapha
- Ukulinganiswa kwegumbi le-Anechoic
- Ukuphakelwa kwe-antenna yokubonakalisa
- Izinhlelo zocwaningo lwe-RF kanye nelebhu
- Izinhlelo zokusebenza ze-antenna zokulinganisa kanye nezinkomba
Imiklamo yezimpondo ze-Broadband inganikeza futhi ububanzi bokusebenza kwezinhlelo zokulinganisa nokuqapha. Isibonelo, ama-antenna ezimpondo ze-RF MISO angu-18–40 GHz acacisiwe ezinhlelweni zokusebenza ezifaka ukuhlolwa kwe-microwave, ukulinganiswa kwe-antenna, ukuhlolwa kwe-antenna yesathelayithi, ukutholwa kwesiqondiso, ukubhekwa kanye nokulinganiswa okuhlobene ne-EMC.
Isiphetho
I-antenna yophondo iguqula igagasi likagesi eliqondiswayo libe imisebe yesikhala esikhululekile ngokusebenzisa umgodi wegagasi okhula kancane kancane.
Inhlanganisela yayoukufanisa okuhle kwe-impedance, imisebe eqondisayo, izici zomsebe ezingabikezelwa, inzuzo ewusizo kanye nokwakhiwa okululayenze uphondo lwaba olunye lwezakhiwo ze-antenna ezibaluleke kakhulu kubunjiniyela be-microwave kanye ne-millimeter-wave.
Kusukela ezimpondweni ze-sectoral kanye ne-pyramidal kuya ekwakhiweni kwe-conical kanye ne-broadband, izakhiwo ezahlukene zingalungiselelwa amabanga athile emvamisa, izidingo ze-polarization, amazinga okuzuza kanye nezindawo zokulinganisa.
Konjiniyela abakhetha i-antenna ye-horn, ububanzi bemvamisa buyisiqalo nje. I-Gain, i-VSWR, ububanzi be-beamwidth, i-polarization, i-waveguide noma i-coaxial interface, ukuphathwa kwamandla kanye nobukhulu bemishini kufanele konke kuhlolwe ngokwezidingo zesistimu ephelele ye-RF.
Isikhathi sokuthunyelwe: Agasti-21-2026
