Directional couplers imhando yakakosha yechiratidzo chekugadzirisa mudziyo. Basa ravo rekutanga nderekuyedza masaini eRF padanho rakafanotemerwa rekubatanidza, nekuzviparadzanisa pakati pezviteshi zvemasaini nemasampled ports - izvo zvinotsigira kuongororwa, kuyerwa uye kugadzirisa kune akawanda maapplication. Sezvo ari maturusi ezvishandiso, anoshandawo achidzokera kumashure, aine masaini akaiswa munzira huru zvinoenderana negwara remidziyo uye dhigirii rekubatanidza. Pane misiyano mishoma mukugadziriswa kweanotungamira couplers, sezvatichaona pazasi.
Tsanangudzo
Sezvineiwo, coupler ingave isina kurasikirwa, inofananidzwa uye inodzokororwa. Zvinhu zvakakosha zvematatu- uye mana-port network ndeyekuzviparadzanisa, kubatanidza uye kutungamira, hunhu hunoshandiswa kuratidzira vanobatana. Iyo yakanaka coupler ine kusingaperi kutungamira uye yekuzviparadzanisa nevamwe, pamwe nekubatanidza chinhu chakasarudzwa kune yakarongwa application.
Iyo dhizaini inoshanda muFig. 1 inoratidza kushanda kweanotungamira coupler, inoteverwa netsanangudzo yeanoenderana maitiro ekuita. Dhiagiramu yepamusoro ndeye 4-port coupler, iyo inosanganisira zvose zvakabatanidzwa (mberi) uye zvakaparadzaniswa (kudzokera shure, kana kuratidzwa) zviteshi. Iyo yakaderera dhizaini ndeye 3-chiteshi chimiro, iyo inobvisa chiteshi chega. Izvi zvinoshandiswa mumashandisirwo anongoda chete kumberi kwakasanganiswa kuburitsa. Iyo 3-port coupler inogona kubatanidzwa munzira yekudzokera kumashure, uko chiteshi chaimbobatanidzwa chinova chiteshi chega:
Mufananidzo 1: Basicdirectional couplerconfigurations
Performance maitiro:
Coupling Factor: Izvi zvinoratidza chidimbu chesimba rekuisa (paP1) rinounzwa kune yakabatanidzwa chiteshi, P3.
Kutungamira: Ichi chiyero chekugona kwevatambi kupatsanura masaisai achipararira kumberi nekudzokera kumashure, sekucherechedzwa pazviteshi zvakabatanidzwa (P3) uye zvakaparadzaniswa (P4)
Kuzviparadzanisa: Inoratidza simba rinounzwa kumutoro usina kubatanidzwa (P4)
Kurasikirwa Kwekupinza: Izvi zvinomiririra simba rekuisa (P1) rinounzwa kune yakafambiswa (P2) chiteshi, iyo inoderedzwa nemagetsi anounzwa kune akabatanidzwa uye ari ega madoko.
Hukoshi hweaya maitiro mudB ndeaya:
Kubatanidza = C = 10 log (P1/P3)
Kutungamira = D = 10 log (P3/P4)
Kuzviparadzanisa = I = 10 log (P1/P4)
Kuisa Kurasika = L = 10 log (P1/P2)
Mhando dzeVaviri
Iyi mhando ye coupler ine zviteshi zvitatu zvinosvikika, sezvakaratidzwa muFig. 2, apo chiteshi chechina chinogumiswa mukati kuti chipe hutungamiri hwakanyanya. Basa rekutanga reanotungamira coupler nderekuenzanisira yakasarudzika (reverse) chiratidzo. Chishandiso chakajairika kuyerwa kwesimba rinoratidzwa (kana zvisina kunanga, VSWR). Kunyangwe ichigona kubatanidzwa mureverse, iyi mhando ye coupler haina kudzorera. Sezvo imwe yezviteshi zvakabatanidzwa yakamiswa mukati, chiratidzo chimwe chete chakabatana chinowanikwa. Munzira yekumberi (sezvinoratidzwa), chiteshi chengarava chinoisa sampuli reverse wave, asi kana yakabatana nereverse direction (RF Input kurudyi), chiteshi chakabatanidzwa chingave sampuli yekumberi wave, yakaderedzwa necoupling factor. Nekubatanidza uku, chishandiso chinogona kushandiswa sesampler yechiyero chechiratidzo, kana kuendesa chikamu chechiratidzo chekubuda kudunhu remhinduro.
Mufananidzo 2: 50-Ohm Directional Coupler
Zvakanakira:
1, Kuita kunogona kugadziridzwa nzira yekumberi
2, High directivity uye kuzviparadzanisa nevamwe
3, Kutungamira kwecoupler kunokanganiswa zvakanyanya neiyo impedance match inopihwa nekugumiswa pachiteshi chega. Kupa iyo yekugumisa mukati inovimbisa kushanda kwepamusoro
Zvakaipa:
1, Kubatana kunongowanikwa munzira yekumberi
2, Hapana mutsara wakabatanidzwa
3, Iyo yakabatanidzwa port power reti ishoma pane yekupinza chiteshi nekuti simba rinoiswa kune yakabatanidzwa chiteshi rinenge raparara mukugumiswa kwemukati.
Si Chuan Keenlion Microwave sarudzo yakakura yeDirectional Coupler mune narrowband uye Broadband masisitimu, inovhara ma frequency kubva 0.5 kusvika 50 GHz. Iwo akagadzirirwa kubata kubva pagumi kusvika pamakumi matatu ekuisa simba mu50-ohm transmission system. Microstrip kana stripline madhizaini anoshandiswa, uye akakwenenzverwa kuita zvakanaka.
Mauniti anouya akajairwa ane SMA kana N chidzitiro chekubatanidza, kana 2.92mm, 2.40mm, uye 1.85mm majoini epamusoro ma frequency ezvikamu.
Isu tinogona zvakare kugadzirisa iyoDirectional Couplermaererano nezvaunoda. Iwe unogona kupinda peji rekugadzirisa kuti upe zvakatemwa zvaunoda.
Nguva yekutumira: Aug-30-2022
