Xov xwm

Sichuan Keenlion Microwave Technology--Ua ke

Sichuan Keenlion Microwave Technology Founded hauv 2004, Sichuan Keenlion Mircrowave techenology CO., Ltd. yog cov chaw tsim khoom ntawm Passive Mircrowave Cheebtsam hauv Sichuan Chengdu, Suav.

Peb muab cov khoom siv hluav taws xob ua haujlwm siab thiab cov kev pabcuam cuam tshuam rau kev siv microwave hauv tsev thiab txawv teb chaws. Cov khoom lag luam muaj txiaj ntsig zoo, suav nrog ntau lub zog faib hluav taws xob, kev coj ua sib txuas, cov ntxaij lim dej, cov khoom sib txuas, duplexers, customized passive Cheebtsam, cais thiab circulators. Peb cov khoom tsim tshwj xeeb tsim rau ntau qhov chaw huab cua thiab qhov kub thiab txias. Cov lus qhia tshwj xeeb tuaj yeem tsim raws li cov neeg siv khoom xav tau thiab siv tau rau txhua tus qauv thiab nrov zaus bands nrog ntau qhov bandwidths los ntawm DC mus rau 50GHz.

Ua ke

Hauv kev sib txuas lus hauv xov tooj ntawm tes wireless, lub luag haujlwm tseem ceeb ntawm kev sib xyaw ua ke yog sib txuas cov tswv yim sib txuas lus thiab tso tawm mus rau tib qhov kev faib tawm sab hauv tsev.

Hauv daim ntawv thov engineering, 800MHz C network, 900MHz G network lossis lwm qhov sib txawv yuav tsum tau tso tawm tib lub sijhawm. Siv cov khoom sib xyaw ua ke, cov txheej txheem kev faib tawm sab hauv tsev tuaj yeem ua haujlwm hauv CDMA zaus band, GSM zaus band lossis lwm zaus bands tib lub sijhawm.

Piv txwv li, nyob rau hauv lub xov tooj cua kav hlau txais xov system, lub tswv yim thiab tso zis tawm tswv yim ntawm ob peb ntau zaus bands (xws li 145mhz thiab 435mhz) yog ua ke los ntawm lub combiner, thiab ces txuas nrog lub xov tooj cua chaw nres tsheb nrog ib tug feeder, uas tsis tsuas yog txuag ib tug feeder, tab sis kuj tsis txhob muaj teeb meem ntawm switching txawv antennas.

 

 

Ecuam ​​tshuam

Hauv kev siv engineering, nws yog qhov tsim nyog los ua ke 800MHz C network thiab 900MHz G network. Siv cov khoom sib xyaw ua ke, cov txheej txheem kev xa tawm sab hauv tsev tuaj yeem ua haujlwm hauv CDMA band thiab GSM band tib lub sijhawm. Piv txwv li, nyob rau hauv lub xov tooj cua kav hlau txais xov system, lub tswv yim thiab tso zis teeb liab ntawm ntau ntau zaus sib txawv bands (xws li 145mhz thiab 435mhz) yog ua ke los ntawm lub combiner, thiab ces txuas nrog lub xov tooj cua chaw nres tsheb nrog ib tug feeder, uas tsis tsuas yog txuag lub feeder, tab sis kuj zam qhov teeb meem ntawm kev hloov txawv antennas..

 

Cov ntsiab lus piv txwv piav qhia

Lub mixer feem ntau yog siv nyob rau hauv qhov kawg transmitting. Nws txoj haujlwm yog los ua ke ob lossis ntau dua RF cov cim xa los ntawm cov xa xov sib txawv rau hauv ib qho thiab xa mus rau cov khoom siv RF kis los ntawm tus kav hlau txais xov, thaum zam kev cuam tshuam ntawm cov teeb liab ntawm txhua qhov chaw nres nkoj.

Combiners feem ntau muaj ob lossis ntau qhov chaw tawm tswv yim thiab tsuas yog ib qho chaw tso tawm. Kev sib cais ntawm qhov chaw nres nkoj yog qhov ntsuas tseem ceeb los piav txog lub peev xwm ntawm ob lub cim tsis cuam tshuam rau ib leeg. Feem ntau nws yuav tsum muaj ntau tshaj 20dB.

3dB choj combiner muaj ob lub input ports thiab ob output ports, raws li qhia nyob rau hauv daim duab 2. Nws yog feem ntau siv los ua ke ob lub wireless cab kuj zaus thiab pub rau hauv kav hlau txais xov los yog tis system. Yog tias tsuas yog siv ib qho chaw tso zis tawm, lwm qhov chaw tso zis yuav tsum tau txuas nrog 50W load. Lub sijhawm no, muaj 3dB poob tom qab lub teeb liab ua ke. Qee zaum ob qhov chaw tso zis yuav tsum tau siv, yog li tsis muaj kev thauj khoom thiab tsis muaj 3dB poob.

Muab qhov tau txais thiab xa cov teeb liab xov tooj ntawm tes mus rau ib lub kav hlau txais xov. Hauv GSM system, vim tias lub transceiver tsis nyob rau tib lub sijhawm, lub xov tooj ntawm tes tuaj yeem tshem tawm lub duplexer rau kev cais cov transceiver, thiab tsuas yog siv cov transceiver yooj yim los sib txuas cov xa thiab txais cov cim rau hauv ib lub kav hlau txais xov tsis cuam tshuam rau ib leeg.

Rau qhov tau txais Circuit Court, tus kav hlau txais xov tau txais cov teeb liab, nkag mus rau qhov tau txais channel los ntawm kev sib xyaw ua ke, sib xyaw nrog cov teeb liab oscillator tau txais hauv zos (piv txwv li qhov tau txais VCO teeb liab tsim los ntawm cov zaus synthesizer), hloov cov teeb liab ntau zaus rau hauv qhov nruab nrab zaus teeb liab, thiab tom qab ntawd quadrature demodulates lub teeb liab los tsim qhov tau txais I thiab Q teeb liab; Tom qab ntawd GMSK (Gaussian lim yam tsawg zaus hloov pauv qhov tseem ceeb) demodulation yog nqa tawm los hloov cov teeb liab analog rau hauv cov teeb liab digital, thiab tom qab ntawd xa mus rau chav ua haujlwm hauv baseband.

Rau cov kis tau tus mob Circuit Court, lub baseband ib feem xa TDMA ncej cov ntaub ntawv kwj (nrog rau tus nqi ntawm 270.833kbit / s) rau GSMK modulation los tsim cov kis tau tus mob I thiab Q teeb liab, uas yog ces xa mus rau kis tau tus mob converter rau kev hloov mus rau kis zaus band. Tom qab fais fab amplification, lub transmitter xa tawm los ntawm tus kav hlau txais xov.

Lub tshuab hluav taws xob zaus muab cov teeb liab oscillator hauv zos tsim nyog rau kev hloov pauv zaus rau kev xa tawm thiab txais chav tsev, thiab siv cov thev naus laus zis ntsuas lub voj voog kom ruaj khov zaus. Nws tau txais kev siv zaus los ntawm lub moos siv hluav taws xob.

Lub moos siv Circuit Court feem ntau yog 13mhz moos. Ntawm qhov tod tes, nws muab lub moos siv rau kev sib txuas zaus thiab ua haujlwm moos rau logic circuit.

Kev faib loj

Dual zaus combiner

① JCDUP-8019

GSM & 3G dual zaus ua ke yog ob qho hauv thiab ib qho tawm. GSM teeb liab (885-960mhz) tuaj yeem ua ke nrog 3G teeb liab (1920-2170MHz).

② JCDUP-8028

DCS & 3G dual zaus ua ke yog ob qho hauv thiab ib qho tawm. DCS teeb liab (1710-1880mhz) tuaj yeem ua ke nrog 3G teeb liab (1920-2170MHz).

③ JCDUP-8026B

(TETRA / iden / CDMA / GSM) & (DCS / PHS / 3G / WLAN) dual zaus ua ke yog ob qho hauv thiab ib qho tawm. Ib qhov chaw nres nkoj npog tetra / iden, CDMA thiab GSM system zaus band (800-960MHz), thiab tuaj yeem nkag tetra / iden, CDMA, GSM lossis ib qho kev sib xyaw ua ke ntawm no; Lwm qhov chaw nres nkoj npog cov zaus band ntawm DCS, PHS, 3G thiab WLAN system (1710-2500mhz), thiab tuaj yeem nkag rau DCS, PHS, 3G, WLAN lossis ib qho kev sib txuas ntawm lawv.

④ JCDUP-8022

(CDMA / GSM / DCS / 3G) & WLAN dual zaus ua ke yog ob qho hauv thiab ib qho tawm. Ib qhov chaw nres nkoj npog CDMA, GSM, DCS thiab 3G system zaus band (824-960 / 1710-2170mhz), thiab tuaj yeem nkag mus rau CDMA, GSM, DCS, 3G lossis ib qho kev sib xyaw ua ke; Lwm qhov chaw nres nkoj npog WLAN system zaus band (2400-2500mhz) thiab tuaj yeem nkag WLAN cov teeb liab.

Peb zaus combiner

① JCDUP-8024 / JCDUP-8024B

GSM & DCS & 3G peb zaus sib xyaw ua ke yog peb lub hauv thiab ib qho tawm. GSM (885-960mhz), DCS (1710-1880mhz) thiab 3G (1920-2170MHz) cov teeb liab tuaj yeem ua ke.

② JCDUP-8018

GSM & 3G & WLAN peb zaus sib xyaw ua ke yog peb lub hauv thiab ib qho tawm. GSM (885-960mhz), 3G (1920-2170MHz) thiab WLAN (2400-2500mhz) cov teeb liab tuaj yeem ua ke.

Plaub zaus combiner

① JCDUP-8031

GSM & DCS & 3G & WLAN plaub zaus sib txuas yog plaub hauv ib qho khoom tawm. GSM (885-960mhz), DCS (1710-1880mhz), 3G (1920-2170MHz) thiab WLAN (2400-2483.5mhz) plaub zaus teeb liab tuaj yeem ua ke.

Nyob rau hauv tas li ntawd, nyob rau hauv daim ntawv thov ntawm combiner, nws yuav tsum tau muab sau tseg tias lub teeb liab pub hom ntawm lub hauv paus chaw nres tsheb los yog repeater yog wireless, thiab nws qhov chaw yog dav spectrum. Yog li ntawd, nqaim passband yog yuav tsum tau nyob rau hauv tej rooj plaub los xyuas kom meej lub purity ntawm lub teeb liab; Lub teeb liab pub hom ntawm cov khoom sib txuas yog cable, thiab cov teeb liab tau ncaj qha los ntawm qhov chaw, uas yog lub teeb liab nqaim. Piv txwv li, CDMA / GSM channel ntawm kev sib txuas jcdup-8026b muaj qhov dav ntawm 800-960MHz. Thaum nkag mus rau GSM tus cab kuj zaus teeb liab, vim hais tias lub hauv paus yog ib tug carrier zaus teeb liab, txoj kev pub mis yog cable, thiab muaj tsuas yog cov cab kuj zaus teeb liab nyob rau hauv lub channel yam tsis muaj lwm yam cuam tshuam cov teeb liab. Yog li ntawd, qhov dav channel tsim ntawm kev sib xyaw ua ke yog ua tau hauv kev siv tswv yim.

Peb kuj tuaj yeem kho cov rf passive Cheebtsam raws li koj xav tau. Koj tuaj yeem nkag mus rau nplooj ntawv customization los muab cov kev qhia tshwj xeeb uas koj xav tau.
https://www.keenlion.com/customization/

Emali:
sales@keenlion.com
tom@keenlion.com