Antena ya Horn ndi imodzi mwa ma antenna omwe amagwiritsidwa ntchito kwambiri okhala ndi kapangidwe kosavuta, ma frequency osiyanasiyana, mphamvu yayikulu komanso kuchuluka kwakukulu.Ma antenna a nyanganthawi zambiri amagwiritsidwa ntchito ngati ma antenna odyetsa mu astronomy yayikulu ya wailesi, kutsatira ma satellite, ndi ma antenna olumikizirana. Kuwonjezera pa kukhala ngati chakudya cha ma reflector ndi ma lens, ndi chinthu chofala mu ma phased arrays ndipo chimagwira ntchito ngati muyezo wofanana wa calibration ndi gain muyeso wa ma antenna ena.
Antena ya nyanga imapangidwa mwa kutsegula pang'onopang'ono waveguide ya rectangular kapena waveguide yozungulira mwanjira inayake. Chifukwa cha kukula pang'onopang'ono kwa pamwamba pa pakamwa pa waveguide, kufanana pakati pa waveguide ndi malo omasuka kumawonjezeka, zomwe zimapangitsa kuti coefficient yowunikira ikhale yochepa. Pa waveguide ya rectangular yodyetsedwa, kutumiza kwa single-mode kuyenera kuchitika momwe zingathere, ndiko kuti, mafunde a TE10 okha ndi omwe amatumizidwa. Izi sizimangoyang'ana mphamvu ya chizindikiro ndikuchepetsa kutayika, komanso zimapewa kukhudzidwa kwa kusokoneza kwa ma mode ndi kufalikira kwina komwe kumachitika chifukwa cha ma mode angapo.
Malinga ndi njira zosiyanasiyana zofalitsira ma antenna a nyanga, amatha kugawidwa m'magulu awiri:ma antenna a nyanga ya gawo, ma antenna a nyanga ya piramidi,ma antenna a nyanga yozungulira, ma antenna a nyanga yozungulira, ma antenna a nyanga yokhala ndi mikwingwirima, ma antenna a nyanga yamitundu yambiri, ndi zina zotero. Ma antenna odziwika bwino a nyanga awa afotokozedwa pansipa. Chiyambi chimodzi ndi chimodzi
Antena ya nyanga ya gawo
Antena ya nyanga ya gawo la ndege ya e-ndege
Antena ya nyanga ya gawo la E-plane imapangidwa ndi chiwongolero cha mafunde amakona anayi chomwe chimatsegulidwa pa ngodya inayake kulowera kumunda wamagetsi.
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyeserera kwa antenna ya E-plane sector horn. Zikuoneka kuti m'lifupi mwa beam ya chitsanzo ichi mu E-plane direction ndi yopapatiza kuposa mu H-plane direction, zomwe zimachitika chifukwa cha kutsegula kwakukulu kwa E-plane.
Antena ya nyanga ya gawo la H-ndege
Antena ya nyanga ya H-plane imapangidwa ndi chiwongolero cha mafunde amakona anayi chomwe chimatsegulidwa pa ngodya inayake molunjika ku mphamvu ya maginito.
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyeserera kwa antenna ya H-plane sector horn. Zikuoneka kuti m'lifupi mwa beam ya chitsanzo ichi mu H-plane direction ndi yopapatiza kuposa mu E-plane direction, zomwe zimachitika chifukwa cha kutsegula kwakukulu kwa H-plane.
Zogulitsa za antenna za nyanga ya RFMISO:
RM-SWHA187-10
RM-SWHA28-10
Antena ya Phiramidi
Antena ya piramidi ya nyanga imapangidwa ndi woyendetsa mafunde amakona anayi omwe amatsegulidwa pa ngodya inayake mbali ziwiri nthawi imodzi.
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyeserera kwa antenna ya piramidi. Makhalidwe ake a radiation kwenikweni ndi kuphatikiza kwa nyanga za E-plane ndi H-plane.
Antena ya nyanga yozungulira
Pamene mbali yotseguka ya wozungulira waveguide ili ngati nyanga, imatchedwa antenna ya nyanga yozungulira. Antena ya nyanga yozungulira imakhala ndi malo ozungulira kapena ozungulira pamwamba pake.
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyeserera kwa antenna ya nyanga yozungulira.
Zipangizo za RFMISO conical horn antenna:
RM-CDPHA218-15
RM-CDPHA618-17
Antena ya nyanga ya Corrugated
Antena ya nyanga ya corrugated ndi antena ya nyanga yokhala ndi pamwamba pa corrugated mkati. Ili ndi ubwino wa band yozungulira ma frequency, polarization yochepa, komanso magwiridwe antchito abwino a beam symmetry, koma kapangidwe kake ndi kovuta, ndipo kuvutika ndi mtengo wake ndi wokwera.
Ma antenna a nyanga ya corrugated angagawidwe m'mitundu iwiri: ma antenna a nyanga ya pyramidal corrugated ndi ma antenna a nyanga ya conical corrugated.
Zogulitsa za RFMISO corrugated horn antenna:
RM-CHA140220-22
Antena ya nyanga ya pyramidal corrugated
Antena ya nyanga yozungulira yokhala ndi corrugated
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyerekezera kwa antenna ya nyanga yozungulira.
Antena ya nyanga yozungulira
Pamene ma antenna a horn wamba akugwiritsa ntchito pafupipafupi kuposa 15 GHz, lobe yakumbuyo imayamba kugawanika ndipo mulingo wa lobe yakumbali umawonjezeka. Kuwonjezera kapangidwe ka ridge ku speaker cavity kumatha kuwonjezera bandwidth, kuchepetsa impedance, kuwonjezera phindu, ndikuwonjezera momwe radiation imayendera.
Ma antenna a nyanga yokhala ndi ma ridged horn amagawidwa makamaka m'ma antenna a nyanga yokhala ndi ma ridged awiri ndi ma antenna a nyanga yokhala ndi ma ridged anayi. Zotsatirazi zimagwiritsa ntchito antenna yodziwika bwino ya piramidi ya nyanga yokhala ndi ma ridged awiri ngati chitsanzo cha kuyerekezera.
Piramidi Double Ridge Horn Antenna
Powonjezera mapangidwe awiri a ridge pakati pa gawo la waveguide ndi gawo lotsegulira horn pali antenna ya double-ridge horn. Gawo la waveguide limagawidwa m'malo obisika kumbuyo ndi ridge waveguide. Malo obisika kumbuyo amatha kusefa ma high-order modes omwe amalimbikitsidwa mu waveguide. ridge waveguide imachepetsa cutoff frequency ya main mode transmission, motero kukwaniritsa cholinga chokulitsa frequency band.
Antena ya nyanga yozungulira ndi yaying'ono kuposa antena ya nyanga yayikulu yomwe ili mu bande la ma frequency lomwelo ndipo ili ndi phindu lalikulu kuposa antena ya nyanga yayikulu yomwe ili mu bande la ma frequency lomwelo.
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyeserera kwa antenna ya nyanga ya piramidi yokhala ndi mapiri awiri.
Antena ya nyanga ya Multimode
Mu ntchito zambiri, ma antenna a horn amafunika kuti apereke mapatani ofanana m'ma plane onse, kusinthasintha kwa gawo pakati pa ma plane a $E$ ndi $H$, komanso kuletsa mbali ya lobe.
Kapangidwe ka nyanga yotulutsa mawu ya multimode excitation horn kangathandize kusintha mphamvu ya kuwala kwa kuwala kwa ndege iliyonse ndikuchepetsa mulingo wa mbali ya lobe. Chimodzi mwa ma antenna odziwika kwambiri a multimode horn ndi antenna ya dual-mode conical horn.
Antena ya Horn Yozungulira Yokhala ndi Ma Mode Awiri
Horn ya cone ya dual-mode imawongolera mawonekedwe a $E$ plane poyambitsa mawonekedwe apamwamba a TM11, kotero kuti mawonekedwe ake ali ndi mawonekedwe ofanana a axially symmetrical beam. Chithunzi chomwe chili pansipa ndi chithunzi cha kugawa kwa magetsi a aperture cha main mode TE11 mode ndi mawonekedwe apamwamba a TM11 mu waveguide yozungulira ndi kugawa kwake kwa aperture field.
Kapangidwe ka nyanga yozungulira yokhala ndi mawonekedwe awiri sikosiyana. Njira zodziwika bwino zogwiritsira ntchito ndi monga nyanga ya Potter ndi nyanga ya Pickett-Potter.
Chithunzi chomwe chili pansipa chikuwonetsa zotsatira za kuyeserera kwa antenna ya Potter ya dual-mode conical horn.
Nthawi yotumizira: Marichi-01-2024
