Izindaba

Ama-coupler aqondisayo awuhlobo olubalulekile lwedivayisi yokucubungula isignali. Umsebenzi wabo oyisisekelo uwukusampula amasiginali e-RF ngezinga elinqunywe kusengaphambili lokuhlangana, ngokuhlukaniswa okuphezulu phakathi kwezimbobo zesignali nezimbobo zesampula - okusekela ukuhlaziywa, ukukalwa nokucutshungulwa kwezinhlelo eziningi zokusebenza. Njengoba zingamadivaysi angenzi lutho, aphinde asebenze abheke emuva, amasignali afakwe emzileni oyinhloko ngokuya ngesiqondiso samadivayisi kanye nezinga lokuhlangana. Kukhona ukuhluka okumbalwa ekucushweni kwama-couplers aqondisayo, njengoba sizobona ngezansi.

Izincazelo

Ngokufanelekile, i-coupler ingaba engalahleki, ifaniswe futhi iphinde ihambisane. Izakhiwo eziyisisekelo zamanethiwekhi ezimbobo ezintathu nezine ziwukuhlukaniswa, ukuhlanganisa kanye nokuqondisa, amanani asetshenziselwa ukubonisa ama-couplers. I-coupler ekahle inokuqondiswa okungapheli kanye nokuhlukaniswa, kanye nento yokuhlanganisa ekhethelwe uhlelo oluhlosiwe.

Umdwebo osebenzayo ku-Fig. 1 ubonisa ukusebenza kwe-coupler eqondisayo, elandelwa incazelo yemingcele yokusebenza ehlobene. Umdwebo ophezulu uyi-coupler yembobo engu-4, ehlanganisa kokubili okuhlanganisiwe (kuya phambili) kanye nezimbobo ezihlukanisiwe (ezibuyela emuva, noma ezibonisiwe). Umdwebo ongezansi uyisakhiwo sembobo esingu-3, ​​esiqeda imbobo eqhelile. Lokhu kusetshenziselwa izinhlelo zokusebenza ezidinga kuphela okukhiphayo okuhamba phambili okuhamba phambili okukodwa. I-coupler enezimbobo ezi-3 ingaxhunywa ibheke emuva, lapho imbobo ebihlanganiswe ngaphambilini iba yimbobo ecezile:

Umfanekiso 1: Oyisisekeloi-coupler yokuqondisaukucupha

Izici zokusebenza:

I-Coupling Factor: Lokhu kukhombisa ingxenye yamandla okufaka (ku-P1) alethwa echwebeni elihlanganisiwe, i-P3

Ukuqondisa: Lesi isilinganiso sekhono le-coupler lokuhlukanisa amagagasi asakazekela eziqondisweni eziya phambili nangemuva, njengoba kubonwa ezimbobeni ezihlanganisiwe (P3) nezihlukanisiwe (P4)

Ukuhlukaniswa: Kubonisa amandla alethwe kumthwalo ongahlanganisiwe (P4)

Ukulahleka Kokufaka: Lokhu kubala amandla okufaka (P1) alethwa embobeni edlulisiwe (P2), encishiswa ngamandla alethwa kuzimbobo ezihlanganisiwe nezizimele.

Amanani alezi zici ku-dB yilawa:

Ukuhlanganisa = C = 10 log (P1/P3)

Ukuqondisa = D = 10 log (P3/P4)

Ukuhlukaniswa = I = 10 log (P1/P4)

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

Izinhlobo zabashadile

Abashadile abaqondisayo:

Lolu hlobo lwe-coupler lunezimbobo ezintathu ezifinyelelekayo, njengoba kuboniswe ku-Fig. 2, lapho imbobo yesine inqanyulwa ngaphakathi ukuze inikeze ukuqondisa okuphezulu. Umsebenzi oyisisekelo we-coupler eqondisayo ukusampula isignali ehlukanisiwe (ekuhlehlayo). Uhlelo lokusebenza olujwayelekile ukukalwa kwamandla abonisiwe (noma ngokungaqondile, i-VSWR). Nakuba ingaxhunywa ngokuhlehla, lolu hlobo lwe-coupler alunakushintshana. Njengoba elinye lamachweba ahlanganisiwe linqanyulwe ngaphakathi, kutholakala isignali eyodwa kuphela ehlanganisiwe. Kundlela eya phambili (njengoba kubonisiwe), imbobo ehlanganisiwe isampula igagasi elibuyela emuva, kodwa uma ixhunywe kusiqondisindlela esibuyela emuva (I-RF Input kwesokudla), imbobo ehlanganisiwe ingaba isampula yegagasi eliya phambili, elincishiswe isici sokuhlanganisa. Ngalolu xhumo, idivayisi ingasetshenziswa njengesampula yokulinganisa isignali, noma ukuletha ingxenye yesiginali yokuphumayo kumjikelezo wempendulo.

Umfanekiso 2: 50-Ohm Directional Coupler

Izinzuzo:

1, Ukusebenza kungenziwa elungiselelwe indlela eya phambili

2, Ukuqondisa okuphezulu nokuhlukaniswa

3, Ukuqondisa kwe-coupler kuthintwa kakhulu ukufana kokuphazamiseka okuhlinzekwe ukunqanyulwa kwembobo engayodwa. Ukunikeza lokho kunqanyulwa ngaphakathi kuqinisekisa ukusebenza okuphezulu

Ububi:

1, Ukuhlanganisa kutholakala kuphela endleleni eya phambili

2, Awukho umugqa ohlanganisiwe

3, Isilinganiso samandla embobo ehlanganisiwe singaphansi kwembobo yokokufaka ngenxa yokuthi amandla asetshenziswa embobeni ehlanganisiwe acishe ashabalala ngokuphelele ekunqanyulweni kwangaphakathi.

Si Chuan Keenlion Microwave ukukhethwa okukhulu kwe-Directional Coupler ekucushweni kwe-narrowband kanye ne-broadband, emboza amaza asuka ku-0.5 kuya ku-50 GHz. Zenzelwe ukuphatha amandla okufaka ama-watts asuka ku-10 kuye kwangama-30 kusistimu yokudlulisa engu-50-ohm. Imiklamo ye-Microstrip noma ye-stripline isetshenziswa, futhi yenzelwe ukusebenza kahle kakhulu.

Amayunithi eza ajwayelekile anezixhumi ze-SMA noma ze-N zesifazane, noma izixhumi ezingu-2.92mm, 2.40mm, nezingu-1.85mm zezingxenye zefrikhwensi ephezulu.

Singakwazi futhi ukwenza ngendlela oyifisayo i-I-Directional Couplerngokwezidingo zakho. Ungafaka ikhasi lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.

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