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Ubuchwepheshe be-Microwave be-Sichuan Keenlion——Umhlanganisi

Ubuchwepheshe be-Microwave beSichuan Keenlion Obusungulwe ngo-2004, i-Sichuan Keenlion Mircrowave techenology CO., Ltd. ingumkhiqizi ohamba phambili wezingxenye ze-Passive Mircrowave eSichuan Chengdu, eShayina.

Sinikeza izingxenye ze-mirrowave ezisebenza kahle kakhulu kanye nezinsizakalo ezihlobene nezinhlelo zokusebenza ze-microwave ekhaya nakwamanye amazwe. Imikhiqizo ishibhile, kufaka phakathi i-power divider ehlukahlukene, ama-directional couplers, ama-filters, ama-combiners, ama-duplexers, izingxenye ezingasebenzi ezenziwe ngokwezifiso, ama-isolators nama-circulator. Imikhiqizo yethu yenzelwe ngokukhethekile izindawo ezahlukene kanye namazinga okushisa aphezulu. Imininingwane ingakhiwa ngokuya ngezidingo zamakhasimende futhi isebenza kuwo wonke ama-frequency band ajwayelekile nathandwayo anama-bandwidth ahlukahlukene kusukela ku-DC kuya ku-50GHz.

Umhlanganisi

Kuhlelo lokuxhumana lweselula olungenantambo, umsebenzi oyinhloko we-combiner ukuhlanganisa amasignali e-input multi band bese uwakhipha ohlelweni olufanayo lokusabalalisa lwangaphakathi.

Ekusetshenzisweni kobunjiniyela, inethiwekhi ye-800MHz C, inethiwekhi ye-900MHz G noma eminye imvamisa ehlukene kudingeka ikhishwe ngesikhathi esisodwa. Ukusebenzisa i-combiner, isethi yesistimu yokusabalalisa yangaphakathi ingasebenza kubhendi yemvamisa ye-CDMA, ibhendi yemvamisa ye-GSM noma eminye imvamisa ngesikhathi esifanayo.

Isibonelo, ohlelweni lwe-antenna yomsakazo, izimpawu zokufaka nezokukhipha zamabhendi amaningi ahlukahlukene emvamisa (njenge-145mhz kanye ne-435mhz) zihlanganiswa nge-combiner, bese zixhunywa nesiteshi somsakazo nge-feeder, okungagcini nje ngokusindisa i-feeder, kodwa futhi okugwema inkinga yokushintsha ama-antenna ahlukene.

 

 

Eumphumela

Ezinhlelweni zobunjiniyela, kuyadingeka ukuhlanganisa inethiwekhi ye-800MHz C kanye nenethiwekhi ye-900MHz G. Ukusebenzisa i-combiner, isethi yesistimu yokusabalalisa yangaphakathi ingasebenza kubhendi ye-CDMA kanye nebhendi ye-GSM ngesikhathi esisodwa. Isibonelo, ohlelweni lwe-antenna yomsakazo, izimpawu zokufaka nezokukhipha zamabhendi amaningi ahlukahlukene emvamisa (njenge-145mhz kanye ne-435mhz) zihlanganiswa nge-combiner, bese zixhunywa nesiteshi somsakazo nge-feeder, okungagcini nje ngokusindisa i-feeder, kodwa futhi kugwema inkinga yokushintsha ama-antenna ahlukene..

 

Incazelo yokufanisa eyisisekelo

I-combiner ivame ukusetshenziswa ekugcineni kokudlulisa. Umsebenzi wayo ukuhlanganisa amasignali e-RF amabili noma ngaphezulu athunyelwe kusuka kuma-transmitter ahlukene abe yinye bese ethunyelwa kumadivayisi e-RF adluliselwa yi-antenna, ngenkathi kugwenywa ukusebenzisana phakathi kwamasignali echweba ngalinye.

Ama-combiners ngokuvamile anezimbobo zokufaka ezimbili noma ngaphezulu kanye nembobo yokukhipha eyodwa kuphela. Ukuhlukaniswa kwembobo kuyinkomba ebalulekile yokuchaza ikhono lamasignali amabili lokungathintisani. Ngokuvamile kudingeka ukuthi kube ngaphezu kwama-20dB.

I-3dB bridge combiner inama-port amabili okufaka kanye nama-port amabili okukhipha, njengoba kuboniswe ku-Figure 2. Ivame ukusetshenziswa ukuhlanganisa amaza amabili okuthwala angenantambo bese uwafaka ku-antenna noma ohlelweni lokusabalalisa. Uma kusetshenziswa i-port eyodwa kuphela yokukhipha, enye i-port yokukhipha idinga ukuxhunywa kumthwalo we-50W. Ngalesi sikhathi, kukhona ukulahleka kwe-3dB ngemva kokuhlanganiswa kwesignali. Ngezinye izikhathi womabili ama-port okukhipha adinga ukusetshenziswa, ngakho-ke akukho mthwalo futhi akukho kulahleka kwe-3dB.

Hlanganisa ukwamukela nokuthumela ifoni yeselula yesignali ku-antenna eyodwa. Kuhlelo lwe-GSM, ngoba i-transceiver ayikho ngesikhathi esifanayo, ifoni ephathekayo ingashiya i-duplexer ukuze ihlukanise i-transceiver, bese isebenzisa kuphela i-transceiver combiner elula ukuhlanganisa izimpawu zokuthumela nokwamukela zibe yi-antenna eyodwa ngaphandle kokuphazamisana.

Kwisekethe yokwamukela, i-antenna ithola isignali, ingena esiteshini sokwamukela nge-combiner, ixubana nesignali ye-oscillator yendawo etholiwe (okungukuthi isignali ye-VCO etholiwe ekhiqizwe yi-frequency synthesizer), ishintsha isignali ye-high-frequency ibe isignali ye-frequency ephakathi, bese i-quadrature ikhipha isignali ukuze ikhiqize izimpawu ze-I ne-Q ezitholiwe; Bese kwenziwa i-demodulation ye-GMSK (Gaussian filter minimum frequency shift keying) ukuguqula isignali ye-analog ibe isignali yedijithali, bese ithunyelwa kuyunithi yokucubungula i-baseband.

Kwisekethe yokudlulisa, ingxenye ye-baseband ithumela ukusakaza kwedatha yohlaka lwe-TDMA (ngesilinganiso esingu-270.833kbit / s) ukuze kuguqulwe i-GSMK ukuze kwakheke izimpawu zokudlulisa ze-I kanye ne-Q, ezithunyelwa ku-transmission up converter ukuze kuguqulwe ibhendi yemvamisa yokudlulisa. Ngemva kokukhulisa amandla, i-transmitter iyithumela nge-antenna.

I-frequency synthesizer inikeza isignali ye-oscillator yendawo edingekayo ekuguqulweni kwemvamisa yeyunithi yokudlulisa nokwamukela, futhi isebenzisa ubuchwepheshe be-phase-locked loop ukuze iqinise imvamisa. Ithola ireferensi yemvamisa kusuka kusekethe yereferensi yewashi.

Isekethe yokubhekisela yewashi ngokuvamile iyiwashi elingu-13mhz. Ngakolunye uhlangothi, inikeza ireferensi yewashi yesekethe yokwenziwa kwemvamisa kanye newashi elisebenzayo lesekethe ye-logic.

Ukuhlukaniswa okuyinhloko

Isihlanganisi semvamisa ephindwe kabili

① JCDUP-8019

I-GSM kanye ne-3G dual frequency combiner iyidivayisi ehlanganisa amaza amabili kanye ne-one out. Isignali ye-GSM (885-960mhz) ingahlanganiswa nesignali ye-3G (1920-2170MHz).

② JCDUP-8028

I-DCS kanye ne-3G dual frequency combiner iyidivayisi ehlanganisa amaza amabili kanye ne-one out. Isignali ye-DCS (1710-1880mhz) ingahlanganiswa nesignali ye-3G (1920-2170MHz).

③ JCDUP-8026B

I-(TETRA / iden / CDMA / GSM) kanye ne-(DCS / PHS / 3G / WLAN) ihlanganisa amaza amabili angaphakathi nangaphandle. Imbobo eyodwa imboza ibhendi yemvamisa yesistimu ye-tetra / iden, i-CDMA kanye ne-GSM (800-960MHz), futhi ingafaka i-tetra / iden, i-CDMA, i-GSM noma iyiphi inhlanganisela yayo; Enye imbobo imboza ibhendi yemvamisa yesistimu ye-DCS, i-PHS, i-3G kanye ne-WLAN (1710-2500mhz), futhi ingafaka i-DCS, i-PHS, i-3G, i-WLAN noma iyiphi inhlanganisela yazo.

④ JCDUP-8022

I-(CDMA / GSM / DCS / 3G) kanye ne-WLAN dual frequency combiner iyidivayisi ehlanganisa ama-double in kanye ne-one out. I-port eyodwa ihlanganisa i-CDMA, GSM, DCS kanye ne-3G system frequency band (824-960 / 1710-2170mhz), futhi ingafaka i-CDMA, GSM, DCS, 3G noma iyiphi inhlanganisela yayo; I-port enye ihlanganisa i-WLAN system frequency band (2400-2500mhz) futhi ingafaka amasignali e-WLAN system.

Isihlanganisi semvamisa emithathu

① JCDUP-8024 / JCDUP-8024B

I-GSM & DCS & 3G three frequency combiner iyidivayisi ene-three in kanye ne-one out. Amasignali e-GSM (885-960mhz), i-DCS (1710-1880mhz) kanye ne-3G (1920-2170MHz) angahlanganiswa.

② JCDUP-8018

I-GSM & 3G & WLAN three frequency combiner iyidivayisi ene-three in kanye ne-one out. Amasignali e-GSM (885-960mhz), 3G (1920-2170MHz) kanye ne-WLAN (2400-2500mhz) angahlanganiswa.

Isihlanganisi semvamisa ezine

① JCDUP-8031

I-GSM & DCS & 3G & WLAN four frequency combiner iyidivayisi ene-four in one out. I-GSM (885-960mhz), i-DCS (1710-1880mhz), i-3G (1920-2170MHz) kanye ne-WLAN (2400-2483.5mhz) izimpawu ezine ze-frequency zingahlanganiswa.

Ngaphezu kwalokho, ekusetshenzisweni kwe-combiner, kufanele kuqashelwe ukuthi imodi yokondla isignali yesiteshi sesisekelo noma i-repeater ayinantambo, futhi umthombo wayo uyi-wide spectrum. Ngakho-ke, i-passband encane iyadingeka kwezinye izimo ukuqinisekisa ubumsulwa besignali; Imodi yokondla isignali ye-combiner yikhebula, futhi isignali ithathwa ngqo emthonjeni, okuyisignali encane ye-spectrum. Isibonelo, isiteshi se-CDMA / GSM se-combiner jcdup-8026b sinobubanzi besiteshi obungu-800-960MHz. Uma ufinyelela isignali yemvamisa yenkampani ye-GSM, ngoba umthombo uyisignali yemvamisa yenkampani yenethiwekhi, indlela yokondla yikhebula, futhi kukhona lesi signali yemvamisa yenkampani yenethiwekhi kuphela esiteshini ngaphandle kwezinye izimpawu zokuphazamiseka. Ngakho-ke, ukwakheka kwesiteshi esibanzi se-combiner kungenzeka ekusebenzeni okungokoqobo.

Singakwazi futhi ukwenza ngezifiso izingxenye ze-rf passive ngokwezidingo zakho. Ungangena ekhasini lokwenza ngezifiso ukuze unikeze imininingwane oyidingayo.
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