Ukuvutha kwe-antenna yephondo kukwanda kancinci kwe-waveguide ukusuka emqaleni wayo ukuya kwindawo enkulu ekhupha imisebe.Olu tshintsho luvumela intsimi ye-electromagnetic ekhokelwayo ukuba isasazeke ngaphambi kokuba ifikelele kwindawo ekhululekileyo, inceda i-antenna ukuba ifezekise ukuhambelana kwe-impedance, i-directivity kunye nolawulo lwe-beam.
Kuthetha ukuthini ukuvutha kwi-antenna yephondo?
I-waveguide elula evulekileyo inokukhanya, kodwa umda okhawulezileyo phakathi kwe-waveguide kunye nendawo ekhululekileyo ubangela ukubonakalisa kwaye unciphise ukuvuleka okusebenzayo kwe-radiation. Uphondo oluvuthayo lutshintsha i-cross-section ye-waveguide ngokuthe ngcembe endaweni ye-short.
Njengoko intsimi ihamba phakathi kwe-flare, iyanda kwi-aperture enkulu. Ubungakanani be-aperture kunye nokusasazwa kwesigaba emva koko kumisela iimpawu ezibalulekileyo ezifana nokwanda, ububanzi be-beamm, ii-sidelobes kunye nokusebenza kakuhle kwe-radiation. I-Flaring inciphisa ubunzima benguquko, kodwa ayisusi ukubonakaliswa okanye iqinisekise ukufana okugqibeleleyo.
Kutheni i-Horn Antenna Flare ibalulekile
Ukuthelekiswa kwe-Impedance kunye ne-VSWR
Utshintsho oluhamba kancinci kancinci ludla ngokunciphisa ukungalingani phakathi kwendlela ekhokelwayo kunye nendawo ekhululekileyo. Isiphumo esichanekileyo sixhomekeke kwiprofayili ye-horn, ubude, i-aperture kunye nobukhulu be-waveguide, ngoko ke i-VSWR kufuneka iqinisekiswe kuyo yonke ibhendi yefrikhwensi ecetywayo.
I-Gain and Effective Aperture
Ukutshaya kudala umngxuma omkhulu osebenzayo wokutsalela. Xa intsimi yokutshaya inomlinganiselo ofanelekileyo kunye nokusasazwa kwesigaba, amandla amaninzi agxininiswa kwicala elingaphambili kwaye ukwanda kwe-antenna kuyanda. Ukwanda akumiselwa yi-angle yokutshaya kuphela.
Ipatheni yobubanzi bemitha kunye nemitha
Imbobo enkulu yombane idla ngokuvelisa umqadi oyintloko omxinwa. Ubukhulu be-E-plane kunye ne-H-plane flare bunokukhethwa ngokuzimeleyo kwi-pyramidal horn, okuvumela abayili ukuba babumbe umqadi kwi-principal plane nganye.
Impazamo yeSigaba sokuVula
Ibala alifiki kuzo zonke iindawo zomngxuma ngesigaba esifanayo. Ukuba uphondo lufutshane kakhulu ngobukhulu bomngxuma walo, utshintsho lwesigaba lunokwanda, nto leyo enciphisa ukusebenza kakuhle komngxuma kwaye ichaphazele umqadi oyintloko kunye neelobe ezisecaleni.
Indlela i-Flare Angle, ubungakanani be-Aperture kunye nobude be-Horn ezisebenzisana ngayo
Akukho engile yeflare ilungileyo kwihlabathi liphela kwi-antenna nganye ye-horn. I-geometry efanelekileyo ixhomekeke kwi-frequency, i-waveguide mode, i-target gain, i-beamwidth, i-bandwidth, ubungakanani obuvumelekileyo kunye neemfuno ze-radiation-pattern.
- I-engile ebanzi yokugqabhukainokuvelisa umngxuma omkhulu kwisakhiwo esifutshane, kodwa uphondo olufutshane kakhulu lunokubangela impazamo enkulu yesigaba sokuvuleka.
- I-engile encinci yokuvuthangokubanzi ifuna uphondo olude olunobukhulu obufanayo bomngxuma, lunyusa ubude boomatshini ngelixa luxhasa utshintsho oluhamba kancinci kancinci.
- Imbobo enkuluinokuxhasa ulawulo oluphezulu kunye nomqadi omncinci, ukuba nje usasazo lwesigaba kunye ne-amplitude luhlala lulawulwa kakuhle.
Iijometri zePondo eziQhelekileyo eziQhelekileyo
- Uphondo lwecandelo le-e-plane:yavutha kakhulu kwindawo yombane.
- Uphondo lwecandelo le-H-plane:yavutha kakhulu kwi-magnetic-field plane.
- Uphondo lwePyramidal:ivutha kuzo zombini iindlela eziphambili kwaye isetyenziswa rhoqo kwizicelo ze-standard-gain.
- Uphondo oluyikona:yenziwe nge-waveguide ejikelezayo yaza yandiswa yaya kutsho kumngxuma ojikelezayo.
Izinto Eziqwalaselwayo Kuyilo Olusebenzayo
Iinjineli zivavanya i-flare geometry kunye ne-operating frequency, i-waveguide dimensions, i-gain, i-3 dB beamwidth, i-VSWR, i-sidelobe level, i-polarization kunye ne-mechanical limits. Kwii-millimeter-wave frequency, ukuchaneka kwe-machining, umgangatho womphezulu kunye nokulungelelaniswa kwe-flange kubaluleka ngakumbi kuba iimpazamo ezincinci zimele i-fraction enkulu ye-wavelength.
Ii-Antennas ezihambelanayo ze-15–22 GHz kunye neeWaveguide Components
Iimveliso ezingezantsi zibonisa izinto ezininzi zeRF ezifumanekayo kuluhlu lwe-15–22 GHz. Ukuze ufumane uphondo oluqhelekileyo olune-flared kule band, jonga i-RM-SGHA51-25.
Apho kusetyenziswa khona ii-Antennas zeempondo ezivuthayo
- Iinkqubo zokulinganisa kunye nokulinganisa ii-antenna
- Iinkqubo zokuhambisa nokwamkela iradar
- Ii-satellite kunye nee-reflector-antenna feeds
- Uvavanyo lwelebhu ye-EMC kunye ne-microwave
- Amakhonkco onxibelelwano lwe-microwave kunye ne-millimeter-wave
Imibuzo ebuzwa qho
Ngaba i-engile enkulu yokugqabhuka isoloko inyusa inzuzo?
Hayi. I-engile enkulu yokutshaya inokunyusa ubungakanani bomngxuma wobude bempondo emiselweyo, kodwa impazamo enkulu yesigaba inokunciphisa ukusebenza kakuhle komngxuma. Ukwanda kuxhomekeke kwijiyometri epheleleyo kunye nokusasazwa kwentsimi.
Yeyiphi i-engile ye-flare efanelekileyo ye-antenna ye-horn?
Akukho xabiso linye libalaseleyo. Abayili bakhetha i-engile kunye nobukhulu be-aperture kunye nobude be-horn ukuze bahlangabezane neemfuno ze-frequency, gain, beamwidth, VSWR kunye nobukhulu.
Ngaba ukutshaya kuyayiphelisa imbonakalo?
Hayi. I-Flaring inika utshintsho oluthe ngcembe ukusuka kwi-waveguide ukuya kwindawo ekhululekileyo kwaye inokunciphisa ukubonakaliswa, kodwa umdlalo wokugqibela usaxhomekeke kuyilo olupheleleyo.
Ukukhetha i-Antenna yeHorn
Izixhobo ze-RF MISOizisombululo ze-antenna yophondousetyenziso lwe-microwave kunye ne-millimeter-wave. Ukuze ufumane ukhetho lwe-standard-gain oluyi-14.5–22 GHz, jonga kwakhonaRM-SGHA51-25Ukuze ufumane umbono obanzi, jongaI-Antenna yeempondo: Umgaqo wokusebenza, iintlobo, iimpawu zemitha kunye nokusetyenziswa.
Ngaba ufuna uncedo lokukhetha i-flare geometry, uluhlu lwefrikhwensi, i-gain okanye i-interface?Nxibelelana ne-RF MISOukuxoxa ngeemfuno zakho zokulinganisa okanye zokudibanisa inkqubo.
Ukuze ufunde okungakumbi ngee-antenna, nceda undwendwele:
Ixesha leposi: Epreli-17-2025
