A i-antenna yesikhalauhlobo lwe-antenna yokuvula eyakhiwe ngokudala izikhala eyodwa noma ngaphezulu endaweni eqhubayo, njengepuleti lensimbi, i-cavity, noma udonga lwe-waveguide. Lapho amasimu kagesi evusa isikhala, izikhala ziba yinto ekhipha imisebe futhi zixhumanisa amandla avela esakhiweni esiqondisiwe noma esivalekile aye esikhaleni samahhala.
Nakuba isakhiwo esiyisisekelo se-slot antenna singase sibonakale silula, imiklamo esekelwe ku-slot idlala indima ebalulekile ku-RF yesimanje kanye nobunjiniyela be-microwave. Ngokulawula i-antenna ye-slot.ubude besikhala, ububanzi, indawo, ukuma, ukuvusa, kanye nesakhiwo esizungezile, onjiniyela bangathola izici ezahlukene ze-impedance, i-polarization, iphethini yemisebe, kanye nezici ze-beam.
Ama-antenna e-slot angasetshenziswa njengama-radiator ngamanye noma ahlelwe abe amakhuluama-waveguide ahlanganisiwe, okwenza zibe usizo ku-radar, ukuxhumana, ukulinganisa, ukuzwa, kanye nezinye izinhlelo ze-microwave. Isihloko sokuqala esibhekisela kuso sethula i-slot antenna njengokuvulwa okungunxande endaweni yokuqondisa futhi sichaza ukuziphatha kwayo sisebenzisa isimiso sikaBabinet.
1. Iyini i-Slot Antenna?
I-antenna elula kakhulu ingabonakala njengokuvulwa okuyisikwele okusikiwe ephepheni elihambisa umoya.
Uma insimu ye-RF isungulwa kulo mgodi, imisinga egeleza ebusweni bensimbi obuzungezile iyaphazamiseka, futhi amandla kagesi akhishwa ngesikhala.
Ekuhlaziyweni kwethiyori, ishidi lokuqondisa livame ukubhekwa njengelikhulu kakhulu futhi eliqhuba kahle. Nokho, ama-antenna angempela asebenzisa izindawo zensimbi ezilinganiselwe, izindonga zokuqondisa amagagasi, imigodi, noma ezinye izakhiwo ezisebenzayo. Ngakho-ke ubukhulu kanye nendawo ezungezile isikhala kuthonya ukuziphatha kwangempela kwe-antenna.
Ngokungafani ne-antenna yocingo, lapho umsinga ugeleza khona ngento eqhubayo, i-antenna yesikhala iphuma ku-ukuvuleka kwesakhiwo sokuqhubaLobu budlelwano obuhambisanayo bungenye yezizathu ezenza ama-slot antenna ahlotshaniswe eduze nesimiso seBabinet.
2. Imvamisa Yokusebenza Yama-Antenna E-Slot
Ireferensi yokuqala isethula300 MHz kuya ku-30 GHznjengobubanzi obujwayelekile bokusebenza kwama-antenna e-slot. Lokhu kuwusizo njengesingeniso esijwayelekile, kodwa akufanele kuhunyushwe njengomkhawulo wemvamisa yendawo yonke.
Kubunjiniyela be-antenna obusebenzayo, ububanzi bemvamisa obusebenzisekayo buncike esakhiweni esithile. Izici ezibalulekile zifaka:
- Ubude nobubanzi besikhala
- Ukulinganisa ubukhulu bomphezulu
- Indlela yokondla
- I-geometry yamagagasi noma i-cavity
- Imodi yokusebenza
- Isikhala sezinto ku-array
Ama-antenna e-slot avame kakhulu ezinhlelweni ze-microwave ngoba ama-slot angafakwa kalula ezindongeni ze-waveguide. Emazameni aphezulu, ubude be-wavelength obuncane buvumela futhi ama-slot amaningi ukuthi ahlelwe abe ama-array amancane ane-high-directivity.
3. Isebenza Kanjani I-Antenna Yesikhala?
Uma amasimu kagesi evuselelwa ngaphakathi noma eduze kwesakhiwo sokuhambisa, imisinga engaphezulu igeleza eduze kwensimbi.
Ukwethula i-slot kuphazamisa indlela evamile yamandla kagesi. Amasimu kagesi aqinile angakhula ngaphesheya komgodi, futhi i-slot ihlanganisa ingxenye yamandla kagesi ibe isikhala samahhala.
Ukuziphatha okuqondile kwemisebe kuncike ekutheni i-slot ijabule kangakanani.
Isibonelo, ku-i-antenna ye-waveguide enezikhala, indawo kanye nokuma kwesikhala maqondana nokusatshalaliswa kwamanje kwe-waveguide kunquma ukuthi leso sikhala esithile sijabule kangakanani. Izikhala eziningi zingabekwa futhi zihlukaniswe ukuze kwakhiwe uhlu olunephethini elifiswayo le-gain and beam.
Yingakho ukwakheka kwe-slot antenna kungeyona nje indaba “yokusika imbobo ensimbini.” I-geometry yeslot, indawo, isikhala, isigaba, kanye nesakhiwo sokudla kumele kucatshangelwe ndawonye.
Umfanekiso 1. Isakhiwo sesikhala esisebenzayo esibonisa imisebe kagesi ngokusebenzisa izimbobo endaweni ehambisa umoya.
4. Isimiso sikaBabinet kanye nama-Antenna e-Slot
Enye yemiqondo ewusizo kakhulu yokuqonda ama-antenna e-slotIsimiso sikaBabinet, ikakhulukazi isandiso sayo se-electromagnetic.
Umqondo oyisisekelo ukuqhathanisa izakhiwo ezimbili ezihambisanayo:
- Isikhala esinqunyiwe sibe yindiza yokuqondisa
- Umugqa oqhubayo one-geometry efanayo naleyo slot
Uma izindawo zensimbi nezivulekile zesakhiwo esisodwa zishintshaniswa, lokhu kokubili kubhekwa njengokuphelelisana.
Ku-theory ye-antenna, izici zokukhanya kwe-antenna ye-slot zingahlotshaniswa nalezo zesakhiwo sayo esifana ne-dipole ehambisanayo. Izimo zephethini yokukhanya zihlobene kakhulu, kuyilapho izindima zensimu kagesi neyamagnetic ziyashintshana. Lokhu kusho nokuthi ukwahlukana kwe-slot ku-orthogonal nakwe-dipole ehambisanayo.
Isibonelo, imbobo encane evundlile ivame ukukhiqiza insimu kagesi evundlile eqondile ku-axis ende yembobo.
Ngakho-ke isimiso sikaBabinet siyithuluzi elibalulekile lokuqonda i-impedance, i-polarization, kanye nokuziphatha kwemisebe kwama-antenna ayisisekelo e-slot.
Isithombe 2. Umfanekiso wezakhiwo ezihambisanayo ezisetshenziswa ukuchaza isimiso sikaBabinet.
5. I-Slot Antenna kanye ne-Dipole Antenna
Isikhala esincane kanye ne-dipole yaso ehambisanayo kunikeza ukuqhathanisa okuwusizo ku-theory ye-antenna.
Zombili zingabonisa izimo ezifanayo zephethini yemisebe ngaphansi kwezimo ezifanele ezihambisanayo, kodwa ukuqondiswa kwensimu yazo kagesi kuhlukile.
Ku-dipole evamile, insimu kagesi ngokuvamile ihambisana ne-element ye-dipole. Ku-slot ehambisanayo, insimu kagesi iqonde ngqo ku-axis ende ye-slot.
Lobu budlelwano obuhambisanayo abusho ukuthi yonke i-slot antenna esebenzayo isebenza njenge-dipole. Izakhiwo zangempela zingase zihlanganise izindiza zomhlaba ezilinganiselwe, imigodi, ama-waveguides, izikhala eziningi, izinto ze-dielectric, kanye nezingxenye zemishini eziseduze, konke okungashintsha iphethini ye-impedance kanye nemisebe.
6. Iphethini Yokushiswa Kwemisebe Nokuhlukaniswa Kwemibala
Isihloko sokuqala sichaza iphethini yemisebe ye-slot antenna njenge-omnidirectional futhi siyiqhathanisa ne-half-wave dipole.
Ukuze uthole indawo elula ehlukanisiwe endizeni enkulu yokuqondisa, iphethini yemisebe ebanzi efana ne-dipole iyisilinganiso esiwusizo sokuqala. Kodwa-ke,"On-directional" akufanele iphathwe njengempahla yendawo yonke yazo zonke izinti ze-slot.
Iphethini yokugcina incike ku:
- Ubukhulu besikhala
- Ukuqondiswa kwesikhala
- Indawo yokuqhuba
- Isakhiwo sokudla
- Inani lezikhala
- Isikhala sezinto kanye nesigaba
- Izibonisi noma imigodi ngemuva kwesikhala
Ku-array yamagagasi anezikhala, izikhala eziningi ezikhipha imisebe zingasebenza ndawonye ukukhiqiza umsebe omncane, oqondisa kakhulu kanye nenzuzo ephezulu kakhulu.
Lo mehluko ubaluleke kakhulu lapho kuxoxwa ngama-radar nama-antenna okuxhumana asebenzayo.
Umfanekiso 3. Iphethini yemisebe efana ne-dipole esetshenziswa ukubonisa ukuziphatha kwe-antenna yesikhala esiyisisekelo ngaphansi kwezimo ezifanele.
7. Ama-Antenna nama-Array e-Slotted Waveguide
Enye yezindlela ezibaluleke kakhulu zokusebenzisa ubuchwepheshe be-slot antenna ubuchwepheshei-antenna ye-waveguide enezikhala.
Kulesi sakhiwo, izikhala ezikhipha imisebe zisikwa odongeni lwe-waveguide ephethe amandla e-microwave. Isikhala ngasinye sihlanganisa inani lamandla elilawulwayo elivela ku-waveguide bese silikhipha endaweni ekhululekile.
Uma izikhala eziningi zihlelwe eceleni kwesiteshi esisodwa noma ngaphezulu se-waveguide, zakha i-i-antenna ye-slot slot ye-waveguide.
Ngokulawula ngokucophelela indawo yesikhala, isikhala, ukuqondisa, kanye nokuvusa inkanuko, abaklami bangafeza okulandelayo:
- Inzuzo ephezulu
- Ububanzi be-beawidth obuncane
- Ama-sidelobe alawulwayo
- Ukwehlukaniswa okufunwayo
- Izimbobo ezincane zeplanethi
I-RF MISO okwamanje inikezaAma-Antenna e-Slot e-Waveguidekanye nemikhiqizo ye-waveguide enezikhala zezinhlelo zokusebenza ze-microwave. Isibonelo, iphothifoliyo yomkhiqizo wayo ifaka phakathi ama-antenna e-waveguide anezikhala angu-8.6–9.6 GHz kanye no-9–10 GHz ane-polarization eqondile kanye nokulungiselelwa kwe-high-gain.
I-RF MISO isebenzisa futhi ukwakheka kwe-waveguide slot array emsebenzini wayo we-R&D, okuhlanganisa nokwakheka kwe-X-band array.
8. Izinzuzo ze-Slot Antennas
Ama-antenna e-slot anikeza izinzuzo eziningana ezisebenzayo:
Ukuhlanganiswa okuphansi
Izikhala zingakhiwa ngqo kumaphaneli okuqhuba noma ezindongeni ze-waveguide.
Ukuhlanganiswa okuhle kwemishini
Isakhiwo esikhipha imisebe asidingi njalo into yangaphandle ephumayo.
Kufanelekela ama-antenna arrays
Izikhala eziningi zingahlanganiswa kahle zibe ama-array ahleliwe noma aphethwe yi-waveguide.
Umklamo womsebe oguquguqukayo
Ukuhlelwa kwesikhala kanye nokuvuselela kungalungiselelwa izidingo ezahlukene zokuzuza kanye nemisebe.
Ukuhambisana nezinhlelo ze-waveguide
Kumaza e-microwave kanye namaza e-millimeter, izikhala zingahlanganiswa ngqo nezakhiwo zokudla ze-waveguide ezilahlekelwa kancane.
9. Imikhawulo kanye Nokucatshangelwa Komklamo
Ama-antenna e-slot ahilela nezinselele eziningana zobunjiniyela.
Isikhala esisodwa singanikeza inzuzo elinganiselwe kanye nemisebe ebanzi ngokuqhathaniswa. Ukufinyelela ukuqondisa okuphezulu ngokuvamile kudinga isakhiwo se-array.
Ukusebenza kungabuye kube nozwela ku:
- Ukunemba komshini we-Slot
- Ubukhulu bendiza yaphansi
- Ukubekezelelana kwamagagasi
- Isikhala phakathi kwesikhala nesikhala
- Isigaba sokudla
- Ikhwalithi ephezulu
- Ukulungiswa kwesakhiwo
Emazameni aphezulu e-microwave kanye nama-millimeter-wave, amaphutha amancane emishini angamelela ingxenye enkulu yobude be-wavelength. Ngakho-ke ukunemba kokukhiqiza kuba yinto ebaluleke kakhulu.
Isihloko sokuqala sibala i-cross-polarization ephezulu kanye nokusebenza kahle kwemisebe ephansi njengezinkinga ezijwayelekile. Empeleni, lezi zici zincike kakhulu ekwakhiweni futhi akufanele ziphathwe njengezakhiwo ezingenakugwenywa zazo zonke i-slot antenna noma i-slot array.
10. Ukusetshenziswa kwe-Slot Antennas
Ama-antenna e-slot kanye nama-waveguide ahlanganisiwe asetshenziswa kabanzi ezinhlelweni ze-RF kanye ne-microwave, okuhlanganisa:
- Izinhlelo ze-radar
- Ukuxhumana nge-microwave
- Ama-antenna ahleliwe
- Izinhlelo zokuzulazula
- Ukulinganiswa kwe-RF
- Izinhlelo zokuzwa
- Amapulatifomu esathelayithi nezindiza
- Izinhlelo ze-antenna ezinikezwa amagagasi
Inkomba yokuqala igqamisa kakhulu ukuzulazula kwe-radar kanye nama-array anikezwa amagagasi njengezinhlelo zokusebenza ezivamile ze-slot antenna.
Kuma-microwave aqondisa kakhulu, ama-waveguide ahlanganisiwe ahlinzeka ngenhlanganisela esebenzayo ye-i-geometry ehleliwe, ukudla kwe-waveguide, amaphethini emisebe alawulwayo, kanye nokukhula kwe-array.
Isiphetho
I-antenna yesikhala iguqula amandla kagesi abe yimisebe yesikhala esikhululekile ngokusebenzisa imbobo eyakhiwe endaweni ehambisa umoya.
Nakuba i-geometry yayo eyisisekelo ilula, ukuziphatha kwe-electromagnetic kwe-slot kuncike kakhulu kubukhulu bayo, ukuma kwayo, ukuvusa, kanye nesakhiwo sayo esizungezile.
Isimiso sikaBabinet sinikeza ukuxhumana okuwusizo okungokwemfundiso phakathi kwama-antenna e-slot kanye nezakhiwo ze-dipole ezihambisanayo, okusiza onjiniyela baqonde izici zabo ze-polarization kanye nemisebe.
Kubunjiniyela be-microwave obusebenzayo, umqondo we-slot uba namandla kakhulu uma uhlanganiswa nobuchwepheshe be-waveguide. I-slot eziningi zingahlanganiswa ku-ama-antenna ahleliwe e-waveguide anezikhala, okuvumela inzuzo ephezulu, ububanzi be-beamwidth obulawulwayo, kanye nokwakheka kwe-antenna eqondile yezinhlelo ze-radar, zokuxhumana, zokulinganisa, kanye nokuzwa.
Isikhathi sokuthunyelwe: Agasti-28-2026
