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Sichuan Keenlion Microwave Technology——Umhlanganisi

I-Sichuan Keenlion Microwave Technology Yasungulwa ngo-2004, i-Sichuan Keenlion Mircrowave techenology CO., Ltd. ingumkhiqizi ohamba phambili wezingxenye zePassive Mircrowave eSichuan Chengdu, eChina.

Sihlinzeka ngezingxenye ze-mirrowave ezisebenza kahle kakhulu kanye nezinsizakalo ezihlobene nezicelo ze-microwave ekhaya naphesheya. Imikhiqizo ibiza kakhulu, kufaka phakathi isihlukanisi samandla ahlukahlukene, ama-couplers aqondisayo, izihlungi, izihlanganisi, ama-duplexer, izakhi ezenziwe ngokwezifiso zokungenzi lutho, ama-isolator nama-circulator. Imikhiqizo yethu iklanyelwe ngokukhethekile izindawo ezihlukahlukene eziyingozi kanye namazinga okushisa. Imininingwane ingakhiwa ngokuya ngezidingo zamakhasimende futhi iyasebenza kuwo wonke amabhendi amafrikhwensi ajwayelekile nadumile anomkhawulokudonsa ohlukahlukene ukusuka ku-DC kuye ku-50GHz.

Umhlanganisi

Ohlelweni lokuxhumana lweselula olungenazintambo, umsebenzi oyinhloko wesihlanganisi ukuhlanganisa amasiginali amabhendi amaningi bese uwakhiphela ohlelweni olufanayo lokusabalalisa endlini.

Kuhlelo lokusebenza lobunjiniyela, inethiwekhi ye-800MHz C, inethiwekhi ye-900MHz G noma amanye amafrikhwensi ahlukile adinga ukukhishwa ngesikhathi esisodwa. Ngokusebenzisa isihlanganisi, isethi yesistimu yokusabalalisa yasendlini ingasebenza kubhendi yefrikhwensi ye-CDMA, ibhendi yefrikhwensi ye-GSM noma amanye amabhendi amafrikhwensi ngesikhathi esifanayo.

Isibonelo, ohlelweni lwe-antenna yomsakazo, amasignali okokufaka nokuphumayo kwamabhendi amafrikhwensi amaningana ahlukene (afana no-145mhz no-435mhz) ahlanganiswa ngesihlanganisi, bese exhunywa nesiteshi somsakazo ngesiphakeli, esingagcini nje ngokugcina isiphakeli, kodwa futhi sigwema inkinga yokushintsha izimpondo ezihlukene.

 

 

Eumphumela

Kuzinhlelo zokusebenza zobunjiniyela, kuyadingeka ukuhlanganisa inethiwekhi ye-800MHz C kanye nenethiwekhi ye-900MHz G. Ngokusebenzisa isihlanganisi, isethi yesistimu yokusabalalisa yasendlini ingasebenza kubhendi ye-CDMA nebhendi ye-GSM ngesikhathi esisodwa. Kwesinye isibonelo, ohlelweni lwe-antenna yomsakazo, amasiginali okufakwayo nokuphumayo kwamabhendi amafrikhwensi amaningana ahlukene (afana no-145mhz no-435mhz) ahlanganiswa ngesihlanganisi, bese exhunywa nesiteshi somsakazo ngesiphakeli, esingagcini nje ngokugcina isiphakeli, kodwa futhi sigwema inkinga yokushintsha izimpondo ezihlukene..

 

Incazelo yesifaniso yesimiso

Isihlanganisi ngokuvamile sisetshenziswa ekugcineni kokudlulisa. Umsebenzi wayo ukuhlanganisa amasiginali e-RF amabili noma ngaphezulu athunyelwa kuma-transmitter ahlukene abe yinye bese uwathumela emishinini ye-RF edluliswa uthi, kuyilapho ugwema ukuxhumana phakathi kwamasignali echweba ngalinye.

Izihlanganisi ngokuvamile zinezimbobo zokufaka ezimbili noma ngaphezulu kanye nembobo yokuphuma eyodwa kuphela. Ukuhlukaniswa kwembobo kuyinkomba ebalulekile yokuchaza ikhono lamasiginali amabili ukuthi angathinti. Ngokuvamile kuyadingeka ukuthi ibe ngaphezu kuka-20dB.

Isihlanganisi sebhuloho le-3dB sinezimbobo zokufaka ezimbili nezimbobo zokukhipha ezimbili, njengoba kukhonjisiwe kuMfanekiso 2. Sivame ukusetshenziselwa ukuhlanganiswa kwamafrikhwensi amabili enkampani yenethiwekhi engenantambo futhi iwafake ku-antenna noma isistimu yokusabalalisa. Uma kusetshenziswa imbobo yokukhipha eyodwa kuphela, enye imbobo yokuphumayo idinga ukuxhunywa ekulayisheni okungu-50W. Ngalesi sikhathi, kukhona ukulahleka kwe-3dB ngemva kokuhlanganiswa kwesignali. Kwesinye isikhathi womabili amachweba okukhiphayo adinga ukusetshenziswa, ngakho-ke akukho mthwalo futhi akukho ukulahleka kwe-3dB.

Hlanganisa ukwamukela nokuthumela isignali yeselula kothi olulodwa. Kuhlelo lwe-GSM, ngenxa yokuthi i-transceiver ayikho esikhaleni sesikhathi esifanayo, iselula ingashiya i-duplexer ukuze ihlukanise i-transceiver, futhi isebenzise kuphela isihlanganisi se-transceiver esilula ukuhlanganisa ukuthumela nokwamukela amasignali ku-antenna eyodwa ngaphandle kokuphazamisana.

Kumjikelezo owamukelayo, uthi ithola isignali, ingene esiteshini esamukelayo ngesihlanganisi, ixube nesiginali ye-oscillator yendawo eyamukelwe (okungukuthi isignali ye-VCO etholiwe ekhiqizwe i-frequency synthesizer), ishintsha isignali yefrikhwensi ibe isignali yefrikhwensi ephakathi, bese i-quadrature yehlisa isiginali ukuze ikhiqize amasiginali atholiwe we-I ne-Q; Bese kwenziwa i-GMSK (isihlungi se-Gaussian ubuncane be-frequency shift keying) ukuze kuguqulwe isignali ye-analog ibe isignali yedijithali, bese ithunyelwa kuyunithi yokucubungula i-baseband.

Kumjikelezo wokudlulisa, ingxenye ye-baseband ithumela ukusakazwa kwedatha yohlaka lwe-TDMA (ngenani elingu-270.833kbit / s) ukuze kuguqulwe i-GSMK ukuze kwakhe amasiginali wokudlulisela we-I kanye ne-Q, abese ethunyelwa kusiguquli sokudlulisela phezulu ukuze kushintshwe ibhendi yefrikhwensi yokudlulisela. Ngemuva kokukhulisa amandla, isidlulisi sithumela ngothi.

I-frequency synthesizer inikeza isignali ye-oscillator yendawo edingekayo ekuguquleni imvamisa yeyunithi yokudlulisa nokwamukela, futhi isebenzisa ubuchwepheshe be-loop ekhiywe ngesigaba ukuze kunzinze imvamisa. Ithola ireferensi yefrikhwensi kumjikelezo wereferensi yewashi.

Iwashi eliyireferensi yewashi ngokuvamile iwashi elingu-13mhz. Ngakolunye uhlangothi, ihlinzeka ngereferensi yewashi yesekethe ye-frequency synthesis kanye newashi lokusebenza lesekethe enengqondo.

Ukuhlukaniswa okuyinhloko

Isihlanganisi sefrikhwensi ekabili

① JCDUP-8019

I-GSM & 3G dual frequency combiner iyithuluzi elingaphakathi nelodwa eliphumayo. Isignali ye-GSM (885-960mhz) ingahlanganiswa nesignali ye-3G (1920-2170MHz).

② JCDUP-8028

I-DCS & 3G dual frequency combiner iyithuluzi eliphuma kabili elingaphakathi nelilodwa. Isignali ye-DCS (1710-1880mhz) ingahlanganiswa nesignali ye-3G (1920-2170MHz).

③ JCDUP-8026B

(TETRA / iden / CDMA / GSM) & (DCS / PHS / 3G / WLAN) isihlanganisi samafrikhwensi esikabili siyidivayisi ephumayo emibili nangaphandle. Imbobo eyodwa ihlanganisa i-tetra / iden, i-CDMA ne-GSM system frequency band (800-960MHz), futhi ingafaka i-tetra / iden, i-CDMA, i-GSM nanoma iyiphi inhlanganisela yakho; Elinye ichweba limboza ibhendi yefrikhwensi ye-DCS, PHS, 3G kanye nohlelo lwe-WLAN (1710-2500mhz), futhi lingafaka i-DCS, PHS, 3G, WLAN nanoma iyiphi inhlanganisela yazo.

④ JCDUP-8022

(CDMA / GSM / DCS / 3G) & WLAN dual frequency combiner iyithuluzi eliphuma kabili elingaphakathi nelilodwa. Imbobo eyodwa ihlanganisa i-CDMA, GSM, DCS kanye ne-3G system frequency band (824-960 / 1710-2170mhz), futhi ingafaka i-CDMA, GSM, DCS, 3G nanoma iyiphi inhlanganisela yakho; Esinye imbobo simboza ibhendi yefrikhwensi yesistimu ye-WLAN (2400-2500mhz) futhi singafaka amasiginali wesistimu ye-WLAN.

Isihlanganisi sefrikhwensi ezintathu

① JCDUP-8024 / JCDUP-8024B

I-GSM & DCS & 3G isihlanganisi samafrikhwensi amathathu iyisisetshenziswa esiphuma kathathu nesiphumayo esisodwa. Izimpawu ze-GSM (885-960mhz), DCS (1710-1880mhz) kanye ne-3G (1920-2170MHz) zingahlanganiswa.

② JCDUP-8018

I-GSM & 3G & WLAN isihlanganisi samafrikhwensi amathathu iyidivayisi ephumayo emithathu neyodwa. Izimpawu ze-GSM (885-960mhz), 3G (1920-2170MHz) kanye ne-WLAN (2400-2500mhz) zingahlanganiswa.

Isihlanganisi sefrikhwensi ezine

① JCDUP-8031

I-GSM & DCS & 3G & WLAN isihlanganisi sefrikhwensi ezine iyisisetshenziswa esine kokukodwa. I-GSM (885-960mhz), DCS (1710-1880mhz), 3G (1920-2170MHz) kanye ne-WLAN (2400-2483.5mhz) amasiginali amane angahlanganiswa.

Ngaphezu kwalokho, ekusetshenzisweni kwesihlanganisi, kufanele kuqashelwe ukuthi imodi yokuphakela isignali yesiteshi esiyisisekelo noma i-repeater ayinantambo, futhi umthombo wayo unobubanzi obubanzi. Ngakho-ke, i-passband encane iyadingeka kwezinye izimo ukuqinisekisa ukuhlanzeka kwesignali; Imodi yokuphakela isignali yesihlanganisi ikhebula, futhi isignali ithathwa ngokuqondile emthonjeni, okuyisignali ye-spectrum encane. Isibonelo, isiteshi se-CDMA / GSM sesihlanganisi i-jcdup-8026b sinobubanzi besiteshi obungu-800-960MHz. Uma ufinyelela isignali yefrikhwensi yenkampani yenethiwekhi ye-GSM, ngenxa yokuthi umthombo isignali yefrikhwensi yenkampani yenethiwekhi, indlela yokondla ikhebula, futhi kukhona lesi siginali yefrikhwensi yenkampani yenethiwekhi kuphela ngaphandle kwamanye amasignali okuphazamisa. Ngakho-ke, ukwakheka kwesiteshi esibanzi sesihlanganisi singenzeka ngokusebenza okungokoqobo.

Singakwazi futhi ukwenza ngokwezifiso izingxenye ze-rf passive ngokuya ngezidingo zakho. Ungafaka ikhasi lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.
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