Izindaba

Ama-couplers aqondisayo awuhlobo olubalulekile lwedivayisi yokucubungula isignali. Umsebenzi wawo oyisisekelo ukusampula amasignali e-RF ngezinga elinqunyiwe lokuxhuma, ngokuhlukaniswa okuphezulu phakathi kwama-ports esignali nama-ports asampuliwe — okusekela ukuhlaziywa, ukulinganiswa kanye nokucubungula kwezinhlelo zokusebenza eziningi. Njengoba kuyimishini engenzi lutho, asebenza futhi ngendlela ephambene, ngamasignali afakwa endleleni eyinhloko ngokuya ngendlela amadivayisi aqondisa ngayo kanye nezinga lokuxhuma. Kunezinhlobo ezimbalwa zokuhlukahluka ekucushweni kwama-couplers aqondisa ngayo, njengoba sizobona ngezansi.

Izincazelo

Okungcono kakhulu, i-coupler ngeke ilahlekelwe, ifaniswe futhi ivumelane. Izakhiwo eziyisisekelo zamanethiwekhi amachweba amathathu namane ukuhlukaniswa, ukuhlanganiswa kanye nokuqondisa, amanani awo asetshenziselwa ukuchaza ama-coupler. I-coupler efanele inesiqondiso esingenamkhawulo kanye nokuhlukanisa, kanye nesici sokuxhuma esikhethiwe sohlelo lokusebenza oluhlosiwe.

Umdwebo osebenzayo ku-Fig. 1 ubonisa ukusebenza kwe-coupler eqondisayo, elandelwa yincazelo yamapharamitha okusebenza ahlobene. Umdwebo ophezulu uyi-coupler enama-port angu-4, ehlanganisa ama-port ahlanganisiwe (phambili) kanye nahlukanisiwe (angemuva, noma abonisiwe). Umdwebo ongezansi uyisakhiwo sama-port angu-3, ​​esisusa i-port ehlukanisiwe. Lokhu kusetshenziswa ezinhlelweni zokusebenza ezidinga kuphela umphumela owodwa ohlanganisiwe ophambili. I-coupler enama-port angu-3 ingaxhunywa ohlangothini oluphambene, lapho i-port eyayihlanganisiwe ngaphambili iba yi-port ehlukanisiwe:

Umfanekiso 1: Okuyisisekeloisixhumi esiqondisayoukucushwa

Izici zokusebenza:

Isici Sokuxhuma: Lokhu kubonisa ingxenye yamandla okufaka (ku-P1) ethunyelwa echwebeni elihlanganisiwe, i-P3

Ukuqondisa: Lokhu kuyisilinganiso sekhono le-coupler lokuhlukanisa amagagasi asakazeka eziqondisweni zangaphambili nangemuva, njengoba kubonwe emachwebeni ahlanganisiwe (P3) kanye nawahlukene (P4).

Ukuhlukaniswa: Kubonisa amandla alethwe kumthwalo ongahlanganisiwe (P4)

Ukulahlekelwa Kokufakwa: Lokhu kubhekisela kumandla okufaka (P1) alethwa echwebeni elidluliselwe (P2), elincishiswa amandla alethwa echwebeni elihlanganisiwe nelihlukanisiwe.

Amanani alezi zici ku-dB yilawa:

Ukuxhumanisa = C = 10 ilogi (P1/P3)

Isiqondiso = D = 10 log (P3/P4)

Ukuhlukaniswa = I = 10 log (P1/P4)

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

Izinhlobo Zabaxhumanisi

Ama-Couplers Aqondisayo:

Lolu hlobo lwe-coupler lunamachweba amathathu afinyelelekayo, njengoba kuboniswe ku-Fig. 2, lapho ichweba lesine liqedwa ngaphakathi ukuze linikeze isiqondiso esiphezulu. Umsebenzi oyisisekelo we-coupler eqondisayo ukusampula isignali ehlukanisiwe (engemuva). Ukusetshenziswa okuvamile ukulinganisa amandla abonisiwe (noma ngokungaqondile, i-VSWR). Nakuba ingaxhunywa ngokuphambene, lolu hlobo lwe-coupler aluhambisani. Njengoba enye yamachweba ahlanganisiwe iqedwa ngaphakathi, kutholakala isignali eyodwa ehlanganisiwe. Ngasohlangothini oluya phambili (njengoba kuboniswe), ichweba elihlanganisiwe lihlola igagasi elibuyela emuva, kodwa uma lixhunywe ohlangothini oluya emuva (Ukufakwa kwe-RF ngakwesokudla), ichweba elihlanganisiwe lizoba isampula yegagasi eliya phambili, elincishiswe yi-coupling factor. Ngalokhu kuxhumana, idivayisi ingasetshenziswa njenge-sampler yokulinganisa isignali, noma ukuletha ingxenye yesignali yokukhipha kumjikelezo wempendulo.

Umfanekiso 2: Isixhumi Esiqondisayo esingu-50-Ohm

Izinzuzo:

1. Ukusebenza kungalungiselelwa indlela eya phambili

2. Ukuqondisa okuphezulu kanye nokuhlukaniswa

3. Ukuqondiswa kwe-coupler kuthinteka kakhulu yi-impedance match enikezwa yi-termination echwebeni elihlukanisiwe. Ukunikeza lokho termination ngaphakathi kuqinisekisa ukusebenza okuphezulu.

Okubi:

1. Ukuxhumanisa kutholakala kuphela endleleni eya phambili

2, Akukho umugqa ohlangene

3. Isilinganiso samandla echweba elihlanganisiwe singaphansi kwechweba lokufaka ngoba amandla asetshenziswa echwebeni elihlanganisiwe acishe anyamalale ngokuphelele ekuphelisweni kwangaphakathi.

I-Si Chuan Keenlion Microwave iyi-Directional Coupler ehlukahlukene ekucushweni kwe-narrowband kanye ne-broadband, ehlanganisa amaza omsindo asukela ku-0.5 kuya ku-50 GHz. Zenzelwe ukuphatha amandla okufaka angu-10 kuya ku-30 ​​watts ohlelweni lokudlulisa olungu-50-ohm. Kusetshenziswa imiklamo ye-Microstrip noma ye-stripline, futhi ilungiselelwe ukusebenza kahle kakhulu.

Amayunithi eza nezixhumi ezijwayelekile ze-SMA noma ze-N zesifazane, noma izixhumi ezingu-2.92mm, 2.40mm, kanye ne-1.85mm zezingxenye zemvamisa ephezulu.

Singakwazi futhi ukwenza ngezifisoIsixhumi Esiqondisayongokwezidingo zakho. Ungangena ekhasini lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.

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