Ii-couplers ezibonisa umkhomba-ndlela zizinto eziqhelekileyo ze-microwave/millimeter wave kumlinganiselo we-microwave kunye nezinye iinkqubo ze-microwave.Zingasetyenziselwa ukwahlula umqondiso, ukwahlukana, kunye nokuxuba, njengokujonga amandla, ukuzinza komthombo womthombo, ukwahlukaniswa komthombo wophawu, ukuhanjiswa kunye novavanyo lokutshayela rhoqo, njl. kwiireflekseli zangoku ezitshayelayo.Ngokwesiqhelo, kukho iindidi ezininzi, ezinje nge-waveguide, coaxial line, stripline, kunye ne-microstrip.
Umzobo 1 ngumzobo weskimu wesakhiwo.Ikakhulu ibandakanya iinxalenye ezimbini, umgca oyintloko kunye nomgca oncedisayo, odityaniswa kunye ngeendlela ezahlukeneyo zemingxuma emincinci, i-slits, kunye nezithuba.Ke ngoko, inxalenye yegalelo lamandla ukusuka kwi-"1" kwisiphelo somgca ongundoqo iya kudityaniswa kumgca wesibini.Ngenxa yokuphazamiseka okanye ukugqwesa kwamaza, amandla aya kuhanjiswa kuphela kumgca wesibini-enye indlela (ebizwa ngokuba "phambili"), kwaye enye Kukho phantse akukho kuhanjiswa kwamandla ngendlela enye (ebizwa ngokuthi "umva").
Umzobo we-2 yi-coupler ye-cross-directional, enye yeechweba kwi-coupler ixhunyiwe kumthwalo ohambelanayo owakhiweyo.
Ukusetyenziswa kwe-Directional Coupler
I-1, yenkqubo yokudibanisa amandla
I-3dB i-coupler directional coupler (eyaziwa ngokuba yibhulorho ye-3dB) idla ngokusetyenziswa kwi-multi-carrier frequency synthesis system, njengoko kubonisiwe kumfanekiso ongezantsi.Olu hlobo lwesekethe luqhelekile kwiinkqubo ezisasazwa ngaphakathi.Emva kokuba iimpawu ze-f1 kunye ne-f2 ezivela kwi-amplifiers ezimbini zidlula kwi-coupler ye-3dB ye-directional, i-output ye-channel nganye iqulethe amacandelo amabini ama-frequency f1 kunye ne-f2, kunye ne-3dB inciphisa i-amplitude yecandelo ngalinye le-frequency.Ukuba enye yeetheminali zemveliso iqhagamshelwe kumthwalo ofunxayo, enye imveliso ingasetyenziswa njengomthombo wamandla we-passive intermodulation measurement system.Ukuba ufuna ukuphucula ukwahlula ngakumbi, unokongeza amanye amacandelo afana nezihluzi kunye nezahluli.Ukwahlukaniswa kwebhulorho eyi-3dB eyilwe kakuhle kunokuba ngaphezulu kwe-33dB.
I-coupler ekhokelayo isetyenziswa kwinkqubo yokudibanisa amandla enye.
Indawo eyalathayo yomjelo njengesinye isicelo sokudibanisa amandla iboniswe kumzobo (a) ngezantsi.Kule sekethe, i-directivity ye-coupler ye-directional isetyenziswe ngobuchule.Kucingelwa ukuba idigri ezidityanisiweyo zezi zibini zimbini ziyi-10dB kunye ne-directivity zombini i-25dB, ukuhlukaniswa phakathi kwe-f1 kunye ne-f2 iziphelo yi-45dB.Ukuba amagalelo ka-f1 kunye no-f2 omabini yi-0dBm, imveliso edityanisiweyo zizo zombini -10dBm.Xa kuthelekiswa ne-coupler ye-Wilkinson kumfanekiso (b) ongezantsi (ixabiso layo eliqhelekileyo lokuzihlukanisa li-20dB), i-signup ye-OdBm efanayo, emva kokuhlanganiswa, kukho -3dBm (ngaphandle kokuqwalasela ilahleko yokufaka).Xa kuthelekiswa nemeko ye-inter-sample, sonyusa isignali yegalelo kumfanekiso (a) ngo-7dB ukwenzela ukuba imveliso yayo ihambelane nomfanekiso (b).Ngeli xesha, ukwahlukana phakathi kwe-f1 kunye ne-f2 kumfanekiso (a) "ukuncipha" "Ngaba yi-38 dB.Isiphumo sothelekiso sokugqibela sesokuba indlela yokudityaniswa kwamandla e-coupler ye-directional yi-18dB ephezulu kune-coupler yaseWilkinson.Esi sikimu sifanelekile kumlinganiselo we-intermodulation we-amplifiers ezilishumi.
I-coupler ekhokelayo isetyenziswa kwinkqubo yokudibanisa amandla 2
2, esetyenziselwa umlinganiselo wokuchasana nokuphazamiseka okanye umlinganiselo ongeyonyani
Kuvavanyo lweRF kunye nenkqubo yokulinganisa, isekethe eboniswe kulo mzobo ungezantsi inokubonwa rhoqo.Masithi i-DUT (isixhobo okanye isixhobo esiphantsi kovavanyo) ngumamkeli.Kwimeko apho, isignali yokuphazamiseka kwesiteshi esikufutshane inokujovwa kumamkeli ngesiphelo sokudityaniswa kwe-coupler yolwalathiso.Emva koko umhloli odibeneyo odibeneyo kubo ngokusebenzisa i-coupler yolwalathiso unokuvavanya ukuchasana kommkeli-iwaka lokuphazamiseka kokusebenza.Ukuba i-DUT yiselula, isidluliseli sefowuni sinokuvulwa sisivavanyi esibanzi esiqhagamshelwe kwisiphelo sokudityaniswa kwe-coupler eyalathiswayo.Emva koko i-spectrum analyzer ingasetyenziselwa ukulinganisa imveliso engafanelekanga yefowuni yesiganeko.Ewe kunjalo, ezinye iisekethe zokucoca kufuneka zongezwe phambi komhlalutyi we-spectrum.Ekubeni lo mzekelo uxoxa kuphela ngokusetyenziswa kwee-couplers ezikhokelayo, isiphaluka sokucoca sishiyiwe.
I-coupler eyalathiswayo isetyenziselwa umlinganiselo wokuchasana nophazamiseko lomamkeli okanye ubude obungeyonyani beselfowuni.
Kule sekethe yovavanyo, ukuqondisa kwe-coupler ekhokelayo kubaluleke kakhulu.Umhlalutyi we-spectrum oqhagamshelwe ukuya ekupheleni ufuna kuphela ukufumana umqondiso kwi-DUT kwaye akafuni ukufumana igama lokugqitha ukusuka ekupheleni kokudibanisa.
3, iisampulu yomqondiso kunye nokubeka iliso
Umlinganiselo we-intanethi ye-intanethi kunye nokubeka iliso inokuba sesona sixhobo sisetyenziswa kakhulu kwi-couplers eyalathisayo.Lo mzobo ulandelayo sisicelo esiqhelekileyo se-couplers ekhokelela kumlinganiselo wesikhululo seselula.Masithi amandla aphumayo e-transmitter yi-43dBm (20W), ukudityaniswa kwe-coupler eyalathisiweyo.Umthamo ngu-30dB, ilahleko yokufaka (ilahleko yomgca kunye nelahleko yokudibanisa) yi-0.15dB.Isiphelo sokudibanisa sine-13dBm (20mW) isignali ethunyelwe kumvavanyi wesikhululo sesiseko, isiphumo esithe ngqo se-coupler ye-directional yi-42.85dBm (19.3W), kwaye ukuvuza kukuvuza Amandla kwicala elingalodwa lixutywe ngumthwalo.
I-coupler ye-directional isetyenziselwa umlinganiselo wesikhululo sesiseko.
Phantse zonke ii-transmitters zisebenzisa le ndlela kwisampulu ye-intanethi kunye nokubeka iliso, kwaye mhlawumbi le ndlela kuphela inokuqinisekisa uvavanyo lokusebenza komthumeli phantsi kweemeko eziqhelekileyo zokusebenza.Kodwa kufuneka kuqatshelwe ukuba kuyafana uvavanyo lokuhambisa, kwaye abavavanyi abohlukeneyo banenkxalabo eyahlukileyo.Ukuthatha izikhululo ezisisiseko zeWCDMA njengomzekelo, abaqhubi kufuneka banike ingqwalasela kwizalathisi kwibhendi yabo yefrikhwensi yokusebenza (2110 ~ 2170MHz), njengomgangatho wesiginali, amandla akwitshaneli, amandla etshaneli akufuphi, njl. Phantsi kwesi siseko, abavelisi baya kufaka kwi isiphelo semveliso yesikhululo sesiseko I-narrowband (efana ne-2110 ~ 2170MHz) i-coupler ye-directional ukujonga iimeko zokusebenza ze-transmitter kwi-band kwaye uyithumele kwiziko lolawulo nangaliphi na ixesha.
Ukuba ngumlawuli we-radio frequency spectrum-isikhululo sokubeka iliso sikanomathotholo ukuvavanya izikhombisi zesikhululo esithambileyo, ugxininiso lwaso lwahluke ngokupheleleyo.Ngokweemfuno zolawulo lukanomathotholo, uluhlu lwamaza ovavanyo lwandiselwa kwi-9kHz ~ 12.75GHz, kwaye isikhululo esivavanyiweyo sibanzi kakhulu.Ingakanani i-radiation yobuxoki eya kwenziwa kwi-frequency band kwaye iphazamise ukusebenza rhoqo kwezinye izikhululo ezisisiseko?Inkxalabo yezikhululo zokubeka iliso zikanomathotholo.Ngeli xesha, i-coupler ye-directional ene-bandwidth efanayo iyafuneka kwisampulu yesignali, kodwa i-coupler ye-directional ekwazi ukugubungela i-9kHz ~ 12.75GHz ibonakala ingekho.Siyazi ukuba ubude bengalo yokudibanisa ye-coupler eyalathiswayo inxulumene nokuphindaphinda okuphakathi.I-bandwidth ye-ultra-wideband directional coupler inokufikelela kwiibhendi ze-octave ezi-5-6, ezinje nge-0.5-18GHz, kodwa ibhendi yefrikhwensi engaphantsi kwe-500MHz ayinakugqunywa.
4, umlinganiselo wamandla we-intanethi
Kuhlobo lwetekhnoloji yokulinganisa amandla, i-coupler yesalathiso sisixhobo esibaluleke kakhulu.Lo mzobo ulandelayo ubonisa umzobo weskim senkqubo yokulinganisa amandla aphezulu eqhelekileyo.Amandla angaphambili asuka kwi-amplifier phantsi koVavanyo isampuliwa yisiphelo sokudibanisa phambili (i-terminal 3) ye-coupler ye-directional kwaye ithunyelwe kwimitha yamandla.Amandla abonakalisiweyo athathwa yi-terminal yokudibanisa umva (i-terminal 4) kwaye ithunyelwe kwimitha yamandla.
I-coupler eyalathayo isetyenziselwa umlinganiselo wamandla aphezulu.
Nceda uqaphele: Ukongeza ekufumaneni amandla abonakalisiweyo kumthwalo, i-terminal yokudibanisa umva (i-terminal 4) iphinda ifumane amandla okuvuza ukusuka kwicala eliya phambili (i-terminal 1), ebangelwa ulwalathiso lwe-coupler directional.Amandla abonakalisiweyo yinto umvavanyi anethemba lokuyilinganisa, kwaye amandla okuvuza ngowona mthombo oyintloko weempazamo kumlinganiselo wamandla obonakalisiweyo.Amandla abonakalisiweyo kunye namandla okuvuza abekwe ngaphezulu kwisiphelo sokudibanisa umva (iziphelo ezi-4) aze athunyelwe kwimitha yamandla.Ekubeni iindlela zothumelo zemiqondiso emibini zihlukile, yi-vector superposition.Ukuba igalelo lamandla okuvuza kwimitha yamandla inokuthelekiswa namandla abonakalisiweyo, iya kuvelisa impazamo enkulu yokulinganisa.
Ngokuqinisekileyo, amandla abonakalisiweyo avela kumthwalo (isiphelo sesi-2) nawo aya kuvuza ukuya ekupheleni kokudibanisa phambili (isiphelo se-1, esingaboniswanga kumzobo ongentla).Sekunjalo, ubukhulu bayo buncinci xa kuthelekiswa namandla angaphambili, alinganisa amandla angaphambili.Impazamo evelayo inokungahoywa.
I-Beijing Rofea Optoelectronics Co., Ltd. ebekwe eTshayina “kwiSilicon Valley” – iBeijing Zhongguancun, lishishini lobugcisa obuphezulu obuzinikele ekukhonzeni amaziko ophando asekhaya nawangaphandle, amaziko ophando, iiyunivesithi kunye nabasebenzi bophando lwezenzululwazi kushishino.Inkampani yethu ibandakanyeka ikakhulu kuphando oluzimeleyo kunye nophuhliso, uyilo, ukuvelisa, ukuthengisa iimveliso ze-optoelectronic, kwaye ibonelela ngezisombululo ezintsha kunye neenkonzo zobuchwephesha, ezenzelwe umntu abaphandi besayensi kunye neenjineli zeshishini.Emva kweminyaka yokwenziwa kwezinto ezizimeleyo, yenze uluhlu olutyebileyo nolugqibeleleyo lweemveliso zombane, ezisetyenziswa kakhulu kumasipala, emkhosini, kwezothutho, kumandla ombane, ezemali, ezemfundo, ezonyango kunye namanye amashishini.
Sijonge phambili kwintsebenziswano nawe!
Ixesha lokuposa: Apr-20-2023