Iindaba

Ii-directional couplers luhlobo olubalulekileyo lwesixhobo sokucubungula imiqondiso. Umsebenzi wazo oyintloko kukuthatha iisampulu ze-RF signals kwinqanaba elimiselweyo lokudibanisa, kunye nokwahlulwa okuphezulu phakathi kwee-signal ports kunye nee-sampled ports — ezixhasa uhlalutyo, ukulinganisa kunye nokucubungula kwii-applications ezininzi. Ekubeni zizixhobo ezingasebenziyo, zikwasebenza kwicala elingasemva, kunye ne-signals ezifakwe kwindlela ephambili ngokwesikhokelo sezixhobo kunye nenqanaba lokudibanisa. Kukho umahluko omncinci kulungiselelo lwee-directional couplers, njengoko siza kubona ngezantsi.

Iinkcazo

Eyona ndlela ifanelekileyo, i-coupler ayizukuphulukana, ihambelane kwaye ivumelane. Iimpawu ezisisiseko zenethiwekhi ze-port ezintathu nezine kukuhlukaniswa, ukuhlanganiswa kunye nolwalathiso, ixabiso lazo lisetyenziselwa ukuchaza i-coupler. I-coupler efanelekileyo ine-directivity kunye nokwahlukana okungenamkhawulo, kunye ne-coupling factor ekhethiweyo kwisicelo esicetywayo.

Umzobo osebenzayo kuMfanekiso 1 ubonisa ukusebenza kwe-directional coupler, elandelwa yinkcazo yeeparameter zokusebenza ezinxulumeneyo. Umzobo ophezulu yi-4-port coupler, equka zombini i-coupled (forward) kunye ne-isolated (reverse, okanye reflected). Umzobo ongezantsi sisakhiwo se-3-port, esisusa i-isolated port. Oku kusetyenziswa kwizicelo ezifuna kuphela i-single forward coupled output. I-3-port coupler inokuqhagamshelwa kwicala elingasemva, apho i-port eyayidibene ngaphambili iba yi-isolated port:

Umfanekiso 1: Isisekoisixhobo sokudibanisa esibhekisa kwicalauqwalaselo

Iimpawu zokusebenza:

I-Coupling Factor: Oku kubonisa iqhezu lamandla okufaka (kwi-P1) elithunyelwa kwi-coupled port, i-P3

Isikhokelo: Olu luvavanyo lokukwazi kwe-coupler ukwahlula amaza asasazeka kwicala elingaphambili nelingasemva, njengoko kubonwe kwiizibuko ezidibeneyo (P3) kunye nezizimeleyo (P4).

Ukuzahlula: Kubonisa amandla athunyelwa kumthwalo ongadibaniyo (P4)

Ukulahleka Kokufakwa: Oku kuthetha amandla okufaka (P1) athunyelwa kwizibuko ezidluliselweyo (P2), ezincitshiswa ngamandla athunyelwa kwizibuko ezidibeneyo nezihlukanisiweyo.

Amaxabiso ezi mpawu kwi-dB zezi:

Ukudibanisa = C = 10 log (P1/P3)

Isikhokelo = D = 10 log (P3/P4)

Ukuzahlula = I = 10 log (P1/P4)

Ukulahleka Kokufakwa = L = 10 log (P1/P2)

Iintlobo zeeCouplers

Abadibanisi Abakhokelayo:

Olu hlobo lwe-coupler lunee-port ezintathu ezifikelelekayo, njengoko kubonisiwe kuMfanekiso 2, apho i-port yesine ivaliwe ngaphakathi ukuze inike i-directivity ephezulu. Umsebenzi osisiseko we-coupler eqondisayo kukuvavanya isignali ehlukanisiweyo (engasemva). Ukusetyenziswa okuqhelekileyo kukulinganisa amandla abonakalisiweyo (okanye ngokungathanga ngqo, i-VSWR). Nangona inokudityaniswa ngasemva, olu hlobo lwe-coupler alutshintshi. Ekubeni enye yee-ports ezidibeneyo ivaliwe ngaphakathi, kukho isignali enye edibeneyo kuphela ekhoyo. Kwicala eliya phambili (njengoko kubonisiwe), i-port edibeneyo ivavanya i-reverse wave, kodwa ukuba idibene kwicala eliya phambili (i-RF Input ngasekunene), i-port edibeneyo iya kuba ngumzekelo we-front wave, encitshiswe yi-coupling factor. Ngolu qhagamshelo, isixhobo singasetyenziswa njenge-sampler yokulinganisa isignali, okanye ukuhambisa inxalenye yesignali yemveliso kwi-feedback circuitry.

Umfanekiso 2: Isixhumi esiLawulayo se-50-Ohm

Iingenelo:

1, Ukusebenza kungalungiselelwa indlela eya phambili

2, Ulawulo oluphezulu kunye nokuzahlula

3. Ulawulo lwe-coupler luchaphazeleka kakhulu kumdlalo we-impedance obonelelwa kukuphela kwezibuko elizimeleyo. Ukubonelela ngaloo kuphelisa ngaphakathi kuqinisekisa ukusebenza okuphezulu.

Iingxaki:

1, Ukudibanisa kufumaneka kuphela kwindlela eya phambili

2, Akukho mgca udibeneyo

3, Umlinganiselo wamandla ezibuko ezidityanisiweyo ungaphantsi kunezibuko zokufaka kuba amandla asetyenziswa kwizibuko ezidityanisiweyo aphantse anyamalale ngokupheleleyo ekuphelisweni kwangaphakathi.

I-Si Chuan Keenlion Microwave lukhetho olukhulu lweDirectional Coupler kwiindlela ezinqamlezileyo kunye ne-broadband, ezigubungela amaza ukusuka kwi-0.5 ukuya kwi-50 GHz. Zenzelwe ukuphatha amandla okufaka ukusuka kwi-10 ukuya kwi-30 watts kwinkqubo yokudlulisela ye-50-ohm. Uyilo lweMicrostrip okanye lwe-stripline luyasetyenziswa, kwaye lulungiselelwe ukusebenza kakuhle.

Iiyunithi ziza nezihlanganisi ze-SMA okanye ze-N ezisemgangathweni, okanye izihlanganisi ze-2.92mm, 2.40mm, kunye ne-1.85mm zezixhobo ezisebenzisa i-frequency ephezulu.

Singakwazi nokwenza ngokwezifisoIsiqhagamsheli Esikhokelayongokweemfuno zakho. Ungangena kwiphepha lokwenza ngokwezifiso ukuze unikezele ngeenkcukacha ozifunayo.

https://www.keenlion.com/customization/