Ukuze ulungelelanise iimfuno ze-eriyali ye-engile yemveliso entsha kwaye wabelane ngokungundo lwephepha le-PCB lesizukulwana sangaphambili, olu yilo lulandelayo lwe-eriyali lungasetyenziselwa ukufikelela kwinzuzo ye-eriyali ye-14dBi@77GHz kunye nokusebenza kwemitha ye-3dB_E/H_Beamwidth=40 °.Ukusebenzisa i-Rogers 4830 plate, ubukhulu 0.127mm, Dk=3.25, Df=0.0033.
Uyilo lwe-antenna
Kulo mfanekiso ungentla, i-antenna yegridi ye-microstrip isetyenziswa.I-eriyali yoluhlu lwegridi ye-microstrip luhlobo lwe-eriyali eyenziwe ngezinto ezisasazayo kunye neentambo zothumelo ezenziwe ngamakhonkco e-N microstrip.Inesakhiwo esihlangeneyo, inzuzo ephezulu, ukondla okulula kunye nokulula ukwenziwa kunye nezinye iingenelo.Eyona ndlela iphambili yepolarization yi-linear polarization, efana ne-antenna ye-microstrip eqhelekileyo kwaye inokucutshungulwa ngetekhnoloji ye-etching.I-impedance yegridi, indawo yokutya, kunye nesakhiwo soqhagamshelo kunye simisela usasazo lwangoku kulo lonke uluhlu, kunye neempawu ze-radiation zixhomekeke kwijometri yegridi.Ubungakanani begridi enye isetyenziselwa ukumisela ukuphindaphinda kumbindi we-eriyali.
Iimveliso ze-eriyali ze-RFMISO zoluhlu:
RM-PA7087-43
RM-PA1075145-32
RM-SWA910-22
RM-PA10145-30
Uhlalutyo lwemigaqo
Ikhoyo ngoku equkuqelayo kwicala elithe nkqo le-array element ine-amplitude elinganayo kunye ne-reverse direction, kunye nesakhono se-radiation sibuthathaka, esinempembelelo encinci ekusebenzeni kwe-eriyali.Cwangcisa ububanzi beseli l1 ukuya kwisiqingatha sobude kwaye ulungise ubude beseli (h) ukufezekisa umahluko wesigaba se-180 ° phakathi kwe-a0 kunye ne-b0.Kwi-radiation ebanzi, umahluko wesigaba phakathi kwamanqaku a1 kunye ne-b1 ngu-0 °.
Uluhlu lwesakhiwo sento
Ulwakhiwo lokutya
Ii-eriyali zohlobo lwegridi zihlala zisebenzisa i-coaxial feed structure, kwaye i-feeder iqhagamshelwe ngasemva kwe-PCB, ngoko ke i-feeder idinga ukuyilwa ngokwemaleko.Ukulungiswa kwangempela, kuya kubakho impazamo ethile yokuchaneka, eya kuchaphazela ukusebenza.Ukuze kuhlangatyezwane nolwazi lwesigaba esichazwe kulo mzobo ungentla, isakhiwo sokutya esicwangcisiweyo esicwangcisiweyo singasetyenziswa, kunye noxinzelelo olulinganayo lwe-amplitude kumazibuko amabini, kodwa umehluko wesigaba se-180 °.
Ulwakhiwo lwesondlo se-coaxial[1]
Uninzi lwe-eriyali zegridi ye-microstrip zisebenzisa i-coaxial feeding.Izikhundla zokutya ze-antenna yoluhlu lwegridi zihlulwe kakhulu zibe ziindidi ezimbini: indawo yokutya ephakathi (indawo yokutya 1) kunye ne-edge feeding (indawo yokutya 2 kunye ne-3 yokutya).
Ubume boluhlu lwegridi eqhelekileyo
Ngexesha lokutya, kukho amaza ajikelezayo ajikeleza yonke igridi kwi-eriyali yoluhlu lwegridi, eyi-non-resonant single-direction end-fire array.I-eriyali yoluhlu lwegridi ingasetyenziswa njenge-eriyali ehambayo kunye ne-eriyali ephumayo.Ukukhetha i-frequency efanelekileyo, indawo yokutya, kunye nobukhulu begridi ivumela igridi ukuba isebenze kumazwe ahlukeneyo: i-wave wave (frequency sweep) kunye ne-resonance (edge emission).Njenge-eriyali ehambayo, i-eriyali yoluhlu lwegridi ithatha ifom yesondlo esondlekileyo, kunye necala elifutshane legridi likhulu kancinane kunesinye esithathwini sobude obukhokelwayo kunye necala elide phakathi kokuphindwe kabini ukuya kathathu ubude becala elifutshane. .Ikhoyo ngoku kwicala elifutshane idluliselwa kwelinye icala, kwaye kukho umehluko wesigaba phakathi kwamacala amafutshane.I-eriyali ezijikelezayo (ezingeyo-resonant) zegridi zikhupha imiqadi ethambekileyo etenxa kwicala eliqhelekileyo lenqwelomoya yegridi.Umkhombandlela we-beam uyatshintsha ngokuphindaphindiweyo kwaye unokusetyenziselwa ukuskena rhoqo.Xa i-eriyali yoluhlu lwegridi isetyenziswa njenge-eriyali ephumayo, amacala amade namafutshane egridi ayilelwe ukuba abe yi-wavelength enye eqhubayo kunye nesiqingatha sobude bezandi zomoya osembindini, kwaye indlela yokutya esembindini yamkelwe.Umsinga okhawulezileyo we-eriyali yegridi kwimeko ye-resonant ibonisa ukuhanjiswa kwamaza okuma.Imitha yemitha yenziwa ikakhulu ngamacala amafutshane, amacala amade asebenza njengeentambo zothumelo.I-antenna yegridi ifumana isiphumo esingcono se-radiation, ubukhulu bemitha bukwimeko yeradiation ebanzi, kwaye i-polarization ihambelana necala elifutshane legridi.Xa i-frequency itenxa kwi-frequency eyilwe kwiziko, icala elifutshane legridi alisekho sisiqingatha sobude be-wavelength, kunye nokwahlulwa kwe-beam kwenzeka kwipatheni yemitha.[2]
Imodeli ye-Array kunye nepateni yayo ye-3D
Njengoko kubonisiwe kulo mfanekiso ungasentla wesakhiwo se-antenna, apho i-P1 kunye ne-P2 ziyi-180 ° ngaphandle kwesigaba, i-ADS ingasetyenziselwa ukulinganisa okucwangcisiweyo (okungaboniswanga kweli nqaku).Ngokutyisa ngokuhlukileyo izibuko lokutya, ukuhanjiswa kwangoku kwinto enye yegridi kunokujongwa, njengoko kubonisiwe kuhlalutyo lomgaqo.Imisinga kwindawo ye-longitudinal ikwicala elichaseneyo (ukucinywa), kunye nemisinga kwindawo enqamlezayo i-amplitude elinganayo kunye nesigaba (i-superposition).
Usasazo lwangoku kwiingalo ezahlukeneyo1
Ukuhanjiswa kwangoku kwiingalo ezahlukeneyo 2
Oku kungasentla kunika intshayelelo emfutshane kwi-eriyali yegridi, kwaye uyila uluhlu kusetyenziswa i-microstrip feed structure esebenza kwi-77GHz.Enyanisweni, ngokweemfuno zokufumanisa i-radar, amanani amileyo kunye anqamlekileyo egridi angancitshiswa okanye anyuswe ukufezekisa uyilo lwe-antenna kwi-angle ethile.Ukongezelela, ubude bomgca wokuhanjiswa kwe-microstrip bunokuguqulwa kwinethiwekhi yesondlo esahlukileyo ukufezekisa umahluko wesigaba esihambelanayo.
Ixesha lokuposa: Jan-24-2024
