Mbiri ya ma antenna a horn inayamba mu 1897, pamene wofufuza wailesi Jagadish Chandra Bose adapanga mapangidwe oyesera pogwiritsa ntchito ma microwave. Pambuyo pake, GC Southworth ndi Wilmer Barrow adapanga kapangidwe ka antenna yamakono ya horn mu 1938 motsatana. Kuyambira pamenepo, mapangidwe a ma antenna a horn akhala akuphunziridwa mosalekeza kuti afotokoze momwe amagwiritsira ntchito ma radiation ndi ntchito m'magawo osiyanasiyana. Ma antenna awa ndi otchuka kwambiri pankhani yotumizira ma waveguide ndi ma microwave, chifukwa chake nthawi zambiri amatchedwama antenna a maikulowevuChifukwa chake, nkhaniyi ifufuza momwe ma antenna a horn amagwirira ntchito ndi momwe amagwiritsidwira ntchito m'magawo osiyanasiyana.
Kodi antenna ya horn ndi chiyani?
A antenna ya nyangandi antenna yotseguka yomwe idapangidwira makamaka ma microwave frequency omwe ali ndi mbali yayikulu kapena yooneka ngati nyanga. Kapangidwe kameneka kamapatsa antenna chitsogozo chachikulu, zomwe zimathandiza kuti chizindikiro chotulutsidwacho chifalikire mosavuta pamtunda wautali. Ma antenna a nyanga amagwira ntchito makamaka pama microwave frequency, kotero ma frequency awo nthawi zambiri amakhala UHF kapena EHF.
Antena ya nyanga ya RFMISO RM-CDPHA618-20 (6-18GHz)
Ma antenna amenewa amagwiritsidwa ntchito ngati nyanga zodyetsera ma antenna akuluakulu monga ma antenna a parabolic ndi directional. Ubwino wawo ndi monga kuphweka kwa kapangidwe ndi kusintha, low standing wave ratio, moderate directionivity, ndi wide bandwidth.
Kapangidwe ndi kagwiritsidwe ntchito ka antenna ya nyanga
Mapangidwe a antenna a nyanga angagwiritsidwe ntchito pogwiritsa ntchito ma waveguides ooneka ngati nyanga potumiza ndi kulandira zizindikiro za ma microwave pafupipafupi. Nthawi zambiri, amagwiritsidwa ntchito limodzi ndi ma waveguides feeds ndi ma waveguides olunjika kuti apange ma sheet opapatiza. Gawo lowala likhoza kukhala ndi mawonekedwe osiyanasiyana, monga sikweya, koni, kapena amakona anayi. Kuti muwonetsetse kuti antenna ikugwira ntchito bwino, kukula kwa antenna kuyenera kukhala kochepa momwe kungathekere. Ngati kutalika kwa nthawi ndi kwakukulu kwambiri kapena kukula kwa nyanga ndi kochepa, antenna sigwira ntchito bwino.
Chojambula cha antenna ya nyanga
Mu antenna ya horn, gawo la mphamvu ya chochitikacho limatuluka kuchokera pakhomo la waveguide, pomwe mphamvu yotsalayo imaonekera kuchokera pakhomo lomwelo chifukwa khomolo limatseguka, zomwe zimapangitsa kuti pakhale kusalumikizana bwino kwa impedance pakati pa malo ndi waveguide. Kuphatikiza apo, m'mphepete mwa waveguide, diffraction imakhudza mphamvu ya radiative ya waveguide.
Pofuna kuthana ndi zofooka za waveguide, kutsegula kumapeto kwa msewu kumapangidwa ngati nyanga yamagetsi. Izi zimathandiza kuti pakhale kusintha kosalala pakati pa malo ndi waveguide, zomwe zimapangitsa kuti mafunde a wailesi aziyenda bwino.
Mwa kusintha waveguide ngati kapangidwe ka horn, kusagwirizana ndi kulephera kwa 377 ohm pakati pa malo ndi waveguide kumachotsedwa. Izi zimawonjezera kuwongolera ndi kupindula kwa antenna yotumizira pochepetsa diffraction m'mphepete kuti ipereke mphamvu yotuluka yomwe imachokera kutsogolo.
Umu ndi momwe antenna ya horn imagwirira ntchito: Malekezero amodzi a waveguide akangoyamba kugwedezeka, mphamvu ya maginito imapangidwa. Pankhani ya kufalikira kwa waveguide, munda wofalikira ukhoza kulamulidwa kudzera m'makoma a waveguide kuti munda usafalikire mozungulira koma mofanana ndi kufalikira kwa malo omasuka. Munda wodutsa ukafika kumapeto kwa waveguide, umafalikira mofanana ndi mu malo omasuka, kotero mafunde ozungulira amapezeka kumapeto kwa waveguide.
Mitundu yodziwika bwino ya ma antenna a nyanga
Antena ya Horn ya Standard Gainndi mtundu wa antenna yomwe imagwiritsidwa ntchito kwambiri m'makina olumikizirana omwe ali ndi kukula kokhazikika komanso m'lifupi mwa beamm. Mtundu uwu wa antenna ndi woyenera kugwiritsa ntchito pazinthu zambiri ndipo ungapereke kufalikira kwa chizindikiro chokhazikika komanso chodalirika, komanso mphamvu yotumizira mauthenga amphamvu kwambiri komanso kuthekera koletsa kusokoneza. Ma antenna okhazikika a gain horn nthawi zambiri amagwiritsidwa ntchito kwambiri pakulankhulana kwa mafoni, kulumikizana kokhazikika, kulumikizana kwa satellite ndi zina.
Malangizo a RFMISO standard gain horn antenna:
RM-SGHA159-20 (4.90-7.05 GHz)
RM-SGHA90-15 (8.2-12.5 GHz)
RM-SGHA284-10 (2.60-3.95 GHz)
Antena ya Broadband Hornndi antenna yomwe imagwiritsidwa ntchito kulandira ndi kutumiza ma siginecha opanda zingwe. Ili ndi mawonekedwe a band yotakata, imatha kuphimba ma siginecha m'ma band angapo nthawi imodzi, ndipo imatha kusunga magwiridwe antchito abwino m'ma band osiyanasiyana a ma frequency. Imagwiritsidwa ntchito kwambiri m'makina olumikizirana opanda zingwe, machitidwe a radar, ndi ntchito zina zomwe zimafuna kuphimba kwa band yotakata. Kapangidwe kake kamakhala kofanana ndi mawonekedwe a belu pakamwa, komwe kumatha kulandira ndikutumiza ma siginecha bwino, ndipo kuli ndi mphamvu yolimbana ndi kusokoneza komanso mtunda wautali wotumizira.
Malangizo a malonda a antenna a nyanga ya RFMISO wideband:
RM-BDHA618-10 (6-18 GHz)
RM-BDPHA4244-21 (42-44 GHz)
RM-BDHA1840-15B（18-40 GHz）
Antena Wapawiri Wopukutidwa ndi Nyangandi antenna yopangidwa mwapadera kuti itumize ndikulandira mafunde amagetsi m'mbali ziwiri zolunjika. Nthawi zambiri imakhala ndi ma antenna awiri okhala ndi corrugated horn, omwe amatha kutumiza ndikulandira ma signal ozungulira m'mbali zopingasa ndi zoyimirira. Nthawi zambiri imagwiritsidwa ntchito mu radar, satellite communications ndi mafoni kuti ipititse patsogolo kugwira ntchito bwino komanso kudalirika kwa kutumiza deta. Mtundu uwu wa antenna uli ndi kapangidwe kosavuta komanso magwiridwe antchito okhazikika, ndipo umagwiritsidwa ntchito kwambiri muukadaulo wamakono wolumikizirana.
Malangizo a RFMISO dual polarization horn antenna:
RM-BDPHA0818-12（0.8-18 GHz）
RM-CDPHA218-15 (2-18 GHz)
RM-DPHA6090-16 (60-90 GHz)
Mzere wozungulira wa Horn Antennandi antenna yopangidwa mwapadera yomwe imatha kulandira ndikutumiza mafunde amagetsi molunjika komanso mopingasa nthawi imodzi. Nthawi zambiri imakhala ndi chiwongolero cha mafunde chozungulira komanso mlomo wooneka ngati belu. Kudzera mu kapangidwe kameneka, kutumiza ndi kulandira kozungulira kumatha kuchitika. Mtundu uwu wa antenna umagwiritsidwa ntchito kwambiri mu radar, kulumikizana ndi ma satellite, zomwe zimapangitsa kuti kutumiza ndi kulandira ma signal kukhale kodalirika.
Malangizo a zinthu za RFMISO roundly polarized horn antenna:
RM-CPHA82124-20（8.2-12.4GHz）
RM-CPHA09225-13 (0.9-2.25GHz)
RM-CPHA218-16 (2-18 GHz)
Ubwino wa antenna ya nyanga
1. Palibe zigawo zolumikizirana ndipo zimatha kugwira ntchito mu bandwidth yayikulu komanso pafupipafupi.
2. Chiŵerengero cha m'lifupi mwa beam nthawi zambiri chimakhala 10:1 (1 GHz - 10 GHz), nthawi zina mpaka 20:1.
3. Kapangidwe kosavuta.
4. Yosavuta kulumikiza ku ma waveguide ndi mizere ya coaxial feed.
5. Ndi chiŵerengero chochepa cha mafunde oima (SWR), imatha kuchepetsa mafunde oima.
6. Kufananiza bwino kwa impedance.
7. Magwiridwe antchito ndi okhazikika pa ma frequency onse.
8. Zingapange timapepala tating'onoting'ono.
9. Imagwiritsidwa ntchito ngati nyanga yodyetsera ma antenna akuluakulu a parabolic.
10. Perekani njira yabwino yoyendetsera zinthu.
11. Pewani mafunde oyima.
12. Palibe zigawo zolumikizirana ndipo zimatha kugwira ntchito pa bandwidth yayikulu.
13. Ili ndi chitsogozo champhamvu ndipo imapereka chitsogozo chapamwamba.
14. Sizipereka chithunzithunzi chochuluka.
Kugwiritsa ntchito antenna ya nyanga
Ma antenna awa amagwiritsidwa ntchito makamaka pa kafukufuku wa zakuthambo ndi ntchito zochokera ku microwave. Angagwiritsidwe ntchito ngati zinthu zodyetsera poyesa magawo osiyanasiyana a antenna mu labotale. Pa ma frequency a microwave, ma antenna awa angagwiritsidwe ntchito bola ngati ali ndi gain yapakati. Kuti akwaniritse ntchito ya gain yapakati, kukula kwa antenna ya horn kuyenera kukhala kwakukulu. Mitundu iyi ya ma antenna ndi yoyenera makamera othamanga kuti apewe kusokoneza kuyankha kofunikira kwa reflection. Ma parabolic reflector amatha kusangalatsidwa ndi zinthu zodyetsera monga ma antenna a horn, potero amawunikira ma reflector pogwiritsa ntchito njira zapamwamba zomwe amapereka.
Kuti mudziwe zambiri chonde tichezereni
Foni: 0086-028-82695327
Nthawi yotumizira: Marichi-28-2024
