Nkhani

Sichuan Keenlion Microwave Technology——Wophatikiza

Sichuan Keenlion Microwave Technology Yakhazikitsidwa mu 2004, Sichuan Keenlion Mircrowave techenology CO., Ltd. ndi omwe amapanga zida za Passive Mircrowave ku Sichuan Chengdu, China.

Timapereka zigawo za mirrowave zogwira ntchito kwambiri ndi ntchito zina zofananira ndi ntchito za microwave kunyumba ndi kunja. Zogulitsazo ndizotsika mtengo, kuphatikiza zogawa mphamvu zosiyanasiyana, zolumikizira zowongolera, zosefera, zophatikizira, ma duplexer, zida zongopanga zokha, zodzipatula komanso zozungulira. Zogulitsa zathu zidapangidwa mwapadera kuti zizitha kusiyanasiyana komanso kutentha kwambiri. Zofotokozera zitha kupangidwa molingana ndi zomwe makasitomala amafuna ndipo zimagwira ntchito pamagulu onse odziwika komanso otchuka omwe ali ndi ma bandwidth osiyanasiyana kuchokera ku DC mpaka 50GHz.

Wophatikiza

Mu makina olumikizirana opanda zingwe, ntchito yayikulu yophatikizira ndikuphatikiza ma siginecha amitundu yambiri ndikuzitulutsa kunjira yogawa yamkati yomweyi.

Mukugwiritsa ntchito uinjiniya, netiweki ya 800MHz C, netiweki ya 900MHz G kapena ma frequency ena osiyanasiyana amafunika kutulutsa nthawi imodzi. Pogwiritsa ntchito chophatikizira, makina ogawa amkati amatha kugwira ntchito mu CDMA frequency band, GSM frequency band kapena ma frequency band ena nthawi imodzi.

Mwachitsanzo, mu pulogalamu ya mlongoti wawayilesi, zolowetsa ndi zotulutsa zamagulu angapo osiyanasiyana (monga 145mhz ndi 435mhz) zimaphatikizidwa kudzera pa chophatikizira, kenako ndikulumikizidwa ndi wayilesi ndi chophatikizira, chomwe sichimangopulumutsa chodyetsa, komanso chimapewa zovuta zosinthira tinyanga tosiyanasiyana.

 

 

Ezotsatira

Mu ntchito zomangamanga, m'pofunika kuphatikiza 800MHz C maukonde ndi 900MHz G maukonde. Pogwiritsa ntchito chophatikiza, makina ogawa amkati amatha kugwira ntchito mu CDMA band ndi GSM band nthawi yomweyo. Mwachitsanzo, mu pulogalamu ya mlongoti wa wailesi, zolowetsa ndi zotulutsa zamagulu angapo osiyanasiyana (monga 145mhz ndi 435mhz) zimaphatikizidwa kudzera pa chophatikizira, kenako ndikulumikizidwa ndi wayilesi ndi feeder, zomwe sizimangopulumutsa chodyetsa, komanso zimapewa vuto lakusintha ma antennas osiyanasiyana..

 

Kufotokozera kwachifaniziro cha mfundo

Chophatikizira nthawi zambiri chimagwiritsidwa ntchito kumapeto kwa kutumiza. Ntchito yake ndikuphatikiza ma siginecha awiri kapena angapo a RF omwe amatumizidwa kuchokera ku ma transmitter osiyanasiyana kukhala amodzi ndikuwatumiza ku zida za RF zomwe zimatumizidwa ndi mlongoti, ndikupewa kuyanjana pakati pa ma siginecha a doko lililonse.

Zophatikiza nthawi zambiri zimakhala ndi madoko awiri kapena kupitilira apo komanso doko limodzi lokha. Kudzipatula kwa doko ndi chizindikiro chofunikira chofotokozera kuthekera kwa ma siginecha awiri kuti asakhudze wina ndi mnzake. Nthawi zambiri imafunika kupitilira 20dB.

Chophatikizira cha 3dB cha mlatho chili ndi madoko awiri olowetsa ndi madoko awiri otulutsa, monga momwe tawonetsera pa Chithunzi 2. Amagwiritsidwa ntchito popanga ma frequency awiri opanda zingwe ndikuwadyetsa mu mlongoti kapena makina ogawa. Ngati doko limodzi lokha litagwiritsidwa ntchito, doko lina lotulutsa liyenera kulumikizidwa ndi katundu wa 50W. Panthawiyi, pali kutayika kwa 3dB chizindikiro chikaphatikizidwa. Nthawi zina madoko onse otulutsa amafunika kugwiritsidwa ntchito, kotero palibe katundu ndipo palibe kutayika kwa 3dB.

Phatikizani kulandira ndi kutumiza kwa chizindikiro cha foni yam'manja ku mlongoti umodzi. Mu dongosolo la GSM, chifukwa transceiver sali mu nthawi yofanana, foni yam'manja imatha kusiya duplexer kuti ikhale yopatula transceiver, ndipo ingogwiritsa ntchito chophatikizira chosavuta chophatikizira chophatikizira chophatikizira kutumiza ndi kulandira ma siginecha mu mlongoti umodzi popanda kusokonezana.

Kwa dera lolandirira, mlongoti umalandira chizindikiro, umalowa mu njira yolandirira kudzera mu chophatikizira, kusakaniza ndi chizindikiro cha oscillator cham'deralo (ie chizindikiro cholandirira VCO chopangidwa ndi ma frequency synthesizer), amasintha chizindikiro chapamwamba kwambiri kukhala chizindikiro chapakati, ndiyeno quadrature imatulutsa chizindikiro kuti apange zizindikiro zolandirira za I ndi Q; Kenako GMSK (Gaussian fyuluta osachepera pafupipafupi kusintha keying) ikuchitika kuti atembenuke chizindikiro analogi mu digito chizindikiro, ndiyeno kutumizidwa ku baseband processing unit.

Pamagawo otumizira, gawo la baseband limatumiza mtsinje wa data wa TDMA (ndi kuchuluka kwa 270.833kbit / s) kuti GSMK isinthe kuti ipange ma siginecha a I ndi Q, omwe amatumizidwa ku transmission up converter kuti asinthe ma frequency band. Pambuyo pakukulitsa mphamvu, chotumizira chimatumiza ndi mlongoti.

Ma frequency synthesizer amapereka chizindikiro cha oscillator chapafupi chomwe chimafunikira kutembenuka kwafupipafupi kwa gawo lopatsira ndi kulandira, ndipo amagwiritsa ntchito ukadaulo wotsekeka wagawo kuti akhazikike pafupipafupi. Imapeza zowerengera pafupipafupi kuchokera kudera lolozera koloko.

Mawotchi owonetsera mawotchi nthawi zambiri amakhala 13mhz wotchi. Kumbali imodzi, imapereka chiwongolero cha wotchi yama frequency synthesis circuit ndi wotchi yogwirira ntchito ya logic circuit.

Gulu lalikulu

Dual frequency combiner

① JCDUP-8019

GSM & 3G wapawiri pafupipafupi kuphatikiza ndi awiri mkati ndi chimodzi kunja chipangizo. Chizindikiro cha GSM (885-960mhz) chikhoza kuphatikizidwa ndi chizindikiro cha 3G (1920-2170MHz).

② JCDUP-8028

DCS & 3G wapawiri pafupipafupi kuphatikiza ndi ziwiri mkati ndi chimodzi kunja chipangizo. Chizindikiro cha DCS (1710-1880mhz) chikhoza kuphatikizidwa ndi chizindikiro cha 3G (1920-2170MHz).

③ JCDUP-8026B

(TETRA / iden / CDMA / GSM) & (DCS / PHS / 3G / WLAN) chophatikizira chapawiri pafupipafupi ndi chipangizo chimodzi mkati ndi chimodzi. Doko limodzi limakwirira tetra / iden, CDMA ndi GSM system frequency band (800-960MHz), ndipo imatha kulowetsa tetra / iden, CDMA, GSM kapena kuphatikiza kulikonse; Doko linalo limakwirira ma frequency band a DCS, PHS, 3G ndi WLAN system (1710-2500mhz), ndipo imatha kulowetsa DCS, PHS, 3G, WLAN kapena kuphatikiza kulikonse.

④ JCDUP-8022

(CDMA / GSM / DCS / 3G) & WLAN wapawiri pafupipafupi kuphatikiza ndi awiri mkati ndi chimodzi kunja chipangizo. Doko limodzi limakwirira CDMA, GSM, DCS ndi 3G system frequency band (824-960 / 1710-2170mhz), ndipo imatha kulowetsa CDMA, GSM, DCS, 3G kapena kuphatikiza kulikonse; Doko linalo limakwirira gulu la ma frequency a WLAN system (2400-2500mhz) ndipo limatha kulowetsa ma siginecha a WLAN.

Zophatikiza katatu pafupipafupi

① JCDUP-8024 / JCDUP-8024B

GSM & DCS & 3G atatu pafupipafupi kuphatikiza ndi atatu mkati ndi chimodzi kunja chipangizo. GSM (885-960mhz), DCS (1710-1880mhz) ndi 3G (1920-2170MHz) zizindikiro zikhoza kuphatikizidwa.

② JCDUP-8018

GSM & 3G & WLAN atatu pafupipafupi kuphatikiza ndi atatu mkati ndi chimodzi kunja chipangizo. GSM (885-960mhz), 3G (1920-2170MHz) ndi WLAN (2400-2500mhz) zizindikiro zikhoza kuphatikizidwa.

Ophatikiza ma frequency anayi

① JCDUP-8031

GSM & DCS & 3G & WLAN ophatikiza ma frequency anayi ndi chida china mu chimodzi. GSM (885-960mhz), DCS (1710-1880mhz), 3G (1920-2170MHz) ndi WLAN (2400-2483.5mhz) ma frequency anayi akhoza kuphatikizidwa.

Kuphatikiza apo, pakugwiritsa ntchito kophatikiza, ziyenera kudziwidwa kuti njira yodyetsera ma siginecha ya base station kapena obwereza ndi opanda zingwe, ndipo gwero lake ndi lalikulu sipekitiramu. Choncho, yopapatiza passband chofunika nthawi zina kuonetsetsa chiyero chizindikiro; Njira yodyetsera chizindikiro cha chophatikiza ndi chingwe, ndipo chizindikirocho chimatengedwa mwachindunji kuchokera kugwero, chomwe ndi chizindikiro chopapatiza. Mwachitsanzo, njira ya CDMA / GSM ya kuphatikiza jcdup-8026b ili ndi makulidwe a 800-960MHz. Mukapeza chizindikiro cha GSM chonyamulira pafupipafupi, chifukwa gwero ndi chizindikiro cha pafupipafupi chonyamulira, njira yodyetsera ndi chingwe, ndipo pali chizindikiro chokhacho chonyamulira panjira popanda zizindikiro zina zosokoneza. Chifukwa chake, kapangidwe kake kanjira kophatikizana ndi kotheka pakugwiritsa ntchito.

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