Buza nayiphi na injineli ye-antenna malunga nokusebenza kwe-wideband, kwaye amathuba okuba ii-antenna ezijikelezayo ezijikelezayo ziya kuvela kwangethuba kwincoko. Ezi zakhiwo zithe tyaba, ezijikelezayo—ezineengalo ezigobile ngaphandle njengeminwe okanye i-galaxy—ziye zasombulula iingxaki ze-bandwidth ukusukela ngeminyaka yoo-1950. Kwaye zisasebenza nanamhlanje.
Yintoni i-Planar Spiral Antenna?
Eyona nto ilula,i-antenna ejikelezayo ejikelezileyoIqulathe iingalo ezimbini okanye ngaphezulu zesinyithi ezikrolwe kwi-substrate encinci ye-dielectric, ezijikeleza ngaphandle ukusuka kwindawo yokuphakela ephakathi. Zimbini iindlela ezilawulayo: i-Archimedean spiral, apho iingalo zisasazeka khona ngesantya esingaguqukiyo, kunye ne-logarithmic spiral, apho i-curve ikhula khona ngokukhawuleza. Zombini zifezekisa injongo efanayo—i-bandwidth ebanzi kakhulu—kodwa nge-geometry eyahlukileyo kancinci.
Isitshixo sikwinto ebizwa ngokuba yingcamango "yendawo esebenzayo". Kwi-frequency ethile, yindawo ethile efana nesangqa ye-spiral—apho umjikelo uhambelana nobude bomda—ekhupha ukukhanya kwayo. Tshintsha i-frequency, kwaye indawo esebenzayo ihamba nje ngaphakathi okanye ngaphandle ngeengalo. I-antenna ayikhathali ukuba uyifaka phi i-frequency; iyaqhubeka isebenza.
Kutheni Ukhetha I-Planar Spiral?
1. Ukusebenza kwe-Ultra-Wideband
Olu luphawu oluphambili. I-spiral eyilwe kakuhle ingasebenza kwiireyithiyo ze-frequency ze-10:1 okanye ezingama-20:1—ukusuka kumakhulu ambalwa e-MHz ukuya kumashumi e-GHz—nge-feed enye. Kwiinkqubo ezifuna ukugubungela iibhendi ezininzi ngaphandle kokutshintsha ii-antenna, loo nto itshintsha umdlalo.
2. IjikelezileyoUkwahlulwahlulwa yiNdalo
Ii-antenna ezijikelezayo zikhupha i-polarization ejikelezayo ngokwemvelo. Akukho polarizers zangaphandle, akukho bunzima bungaphezulu. Oku kuzenza zilungele unxibelelwano lwesathelayithi, iGPS, kunye nayo nayiphi na inkqubo apho ukungalingani kwe-polarization okanye ukujikeleza kweFaraday kuyingxaki.
3. Iprofayili ephantsi kwaye ilula
Ngenxa yokuba ziprintiwe kwiindawo ezincinci, ii-planar spirals zithe tyaba kwaye zilula. Zingafakwa kwiindawo ezigudileyo, zivumelane nezakhiwo ezigobileyo, okanye zihlanganiswe ngqo kwiinkqubo apho ubukhulu buyingxaki.
4. Ipateni Ehambelanayo Kuyo Yonke I-Bandwidth
Ngokungafaniyo nezinye ii-antenna ze-wideband ezitshintsha imo yazo ye-beam rhoqo, ii-spirals zigcina ipateni ezinzileyo—ngesiqhelo imisebe ye-bidirectional ecaleni kwendiza. Oku kuqikelelwa kubalulekile xa uyila ukujikeleza.
Apho Uza Kuzifumana Khona
•Imfazwe ye-elektroniki kunye nokuJonga: Iinkqubo ezifuna ukubona, ukuxina, okanye ukuthintela imiqondiso kwi-spectrum ebanzi zixhomekeke kwi-spirals. Ukuba awazi ukuba isoyikiso siza kuvela phi—okanye ukuba siza kusebenzisa ngaphi—udinga i-antenna engakhathaliyo.
•I-BroadbandUkubeka iliso kunye noVavanyo: Kwiilabhoratri ze-EMC nakwizikhululo zokubeka iliso kwi-spectrum, ii-spirals zisebenza njengezalathiso ezithembekileyo zokulinganisa ii-antenna kunye neenkqubo kwiibhendi ezininzi ngokuseta okukodwa.
•Unxibelelwano lweSatellite kunye neGPS: Ukwahlukana okujikelezayo okuqhelekileyo kunye ne-bandwidth ebanzi kwenza ii-spirals zibe lukhetho oluhle kwiiterminal zomhlaba kunye nee-antennas ezijikeleze isithuba, ingakumbi xa kufuneka kugqunywe iibhendi ezininzi ze-frequency.
•Iradar Engena Emhlabeni: Iipulses ezimfutshane zithetha ububanzi bebhendi. IiSpirals ziphatha imiqondiso efana ne-impulse esetyenziswa kwimifanekiso engaphantsi komhlaba ngaphandle kokukhala okanye ukugqwethwa.
Ingcinga evela kwiLebhu
Omnye umntu osebenza naye wakha wathi, “Nge-spiral, urhweba ngenzuzo nge-bandwidth—kwaye uninzi lwexesha, olo lurhwebo olufanelekileyo.” Wayechanekile. Kwihlabathi apho imiqondiso ingaqikeleliyo kwaye ulwabiwo lweefrikhwensi luhlala lutshintsha, ukuba ne-antenna engakhathaliyo ngeefrikhwensi yinto entle ekufanele ihlawulwe.
Ii-antenna ze-RFMiso Planar Spiral
Sinikezela ngee-antenna ezijikelezayo ezijikeleza i-planar ezigubungela uluhlu lwamaza ukusuka kwi-UHF ukuya kwi-millimeter-wave, kunye neendlela zokukhetha i-cavity backing kunye ne-custom substrates. Nokuba wakha inkqubo ye-EW okanye useta isikhululo sokujonga i-broadband, sinoyilo oluhambelanayo.
RM-PSA218-2R
RM-PSA218-V2
RM-PSA0756-3L
RM-PSA0756-3R
RM-PSA1840-5
Unomdla? Ndithumelele i-DM ukuze ufumane iinkcukacha kunye nokufumaneka kwesitokhwe.
Ukuze ufunde okungakumbi ngee-antenna, nceda undwendwele:
Ixesha leposi: Matshi-13-2026
