Mabda'a anteenooyinka isgaarsiinta iyo qalabyada,
sida ugu wanaagsan ee loo helo loona gudbiyo calaamadaha 3g/4g amplifiers signalka
Mareegta:https://www.lintratek.com/
Marka hore, mabda'a anteenada:
1.1 Qeexida anteenada:
Qalab si wax ku ool ah u iftiimin kara hirarka korantada ee jihada meel bannaan ama si wax ku ool ah u heli kara hirarka korantada ee jiho gaar ah oo meel bannaan ah.
1.2 Hawlaha anteenada:
Ø Beddelka tamarta - beddelka mowjadaha la hagayo iyo hirarka bannaan ee bannaan;Shucaaca jihada (soo dhaweynta) - wuxuu leeyahay tilmaamo gaar ah.
1.3 Mabda'a shucaaca anteenada:
1.4 Halbeegyada Anteenada
Halbeegga shucaaca
Ø Balac koronto badhkeed, saamiga hore iyo gadaal;
Ø Habka polaration-ka, takoorka kala-soocidda;
Ø Qodobka jihaynta, faa'iidada anteenada;
Ø Lobe ugu weyn, lafaha sare, xakamaynta sidelobe, buuxinta eber, bim hoos u dhigid…
Qiyaasta wareegga
Saamiga mawjadda taagan ee korantada VSWR, milicsiga isugeynta Γ, soo celinta khasaaraha RL;
Ø Input impedance Zin, khasaaraha gudbinta TL;
Ø go'doomin Iso;
Ø Dalabka saddexaad ee daahsoon ee isku xidhka PIM3…
Antenna sidelobe
Ballaca Tooska ah
Saamiga hore iyo gadaal: Wuxuu qeexayaa saamiga awoodda shucaaca hore ee anteenada iyo ta dib u ifaysa ee gudaha ± 30°.
Xidhiidhka ka dhexeeya faa'iidada iyo cabbirka anteenada iyo ballaadhkeeda
Isku dhejinta "taayirka", inta badan ee calaamaduhu u urursan yihiin, korodhka sare ee faa'iidada, way sii weynaataa cabbirka anteenada, iyo cidhiidhi dhuuban;
Qaar ka mid ah qodobbada muhiimka ah ee faa'iidada anteenada:
Anteenadu waa aalad dadban mana soo saari karto tamar.Faa'iidada anteenada ayaa si fudud u ah kartida si wax ku ool ah tamarta xoogga loogu saaro si ay u iftiimiso ama u hesho hirarka korantada ee jihada gaarka ah.
Ø Faa'iidada anteenada waxaa dhaliya kor u kaca gariiriyeyaasha.Mar kasta oo faa'iidada laga helo, ayaa dheeraysa dhererka anteenada.Ku kordhi faa'iidada 3dB oo laba jibaar mugga.
Mar kasta oo faa'iidada anteenadu ay kor u kacdo, toosnaanta ayaa sii wanagsanaysa, tamarta xoogga badan ayaa sii badanaysa, waxaana sii yaraanaya lakabka.
1.5 Qiyaasta Shucaaca
Polarization: waxa loola jeedaa jihada ama isbeddelka vector beerta korantada ee meel bannaan.
1.6 Wareegtada
Soo celi khasaaraha
Laba, alaabta anteenada
2.1 Habka Magacaabista Anteenada:
Qaybaha anteenada: ODP (anteeno saxan jihada dibadda ah), OOA (anteeno dibadda ah), IXD (anteenada saqafka gudaha gudaha), OCS (anteeno laba jiho ah), OCA (anteeno bannaanka ah), OYI (anteeno Yagi dibadda ah), ORA (tuurka dibadda anteenada dusha sare), IWH (anteenada gidaarka lagu rakibay) iyo wixii la mid ah.
Xagasha awooda badhkeed: 032,065,090,105,360(anteenada saldhiga saldhiga) 020,030,040,050,060,075,090,120,160,360 (anteenada ku celiska ah)
Qaabka polarization: R (dual polarization), V (hal polarization)
Faa'iido: Qiimaha ugu badan waa 21dbi ku salaysan qiimaha dhabta ah
Noocyada wadajirka ah: D (madaxa Diin), N (madaxa nooca N), S (madaxa SMA), T (TNC madaxa) iyo wixii la mid ah
Xaddiga soo noqnoqda:
Koodhka qeexitaanka: Xarfaha Roomaanku waxay muujinayaan jiilka badeecada.Xarfaha iyo tirooyinka soo socdaa waxay muujinayaan xagasha quusta, qaabka, iyo macluumaadka kale.Nooca F;V nidaaminta korantada;Hababka korantada fog ee RV
2.2 Saldhig anteeno
Anteenada Dual-Frequency Antenna
Anteenada Saddex-soo noqnoqda
Anteenada saqafka
Anteenada darbiga ah
Anteenada Yagi
Anteenada Grid
Broadband Omnidirectional Antenna Log-Periodic Antenna Plate Antenna
3.1 Awood qaybiye
Qaybiyaha korantadu waa aalad u qaybisa tamarta hal calaamad wax soo saar laba ama in ka badan.Asal ahaan waa beddelka impedance.
Ø Ma la rogi karaa awood qaybiye si loogu beddelo isku-darka?
Marka loo isticmaalo sida synthesizer ah, ma aha oo kaliya u baahan go'doomin sare, saamiga mawjada taagan hoose, laakiin sidoo kale diiradda saarayaa looga baahan yahay in ay u adkeysan awood sare.Iyadoo la tixgelinayo in dekedaha wax-soo-saarka ee qaybiyaha awoodda dalool ee inta badan la isticmaalo aysan ku habboonayn, mawjadda taagan ee weyn;Sababtoo ah iska caabbinta awoodda hoose ee qaybiyaha awoodda microstrip, kuma talineyno isticmaalka qaybiyaha awoodda si aad u bedesho isku-darka.
Qaybiyaha Awooda godka
Afar, hordhaca lamaanaha
4.1 Lamaanayaal
Ø Lammaanuhu waa nooc ka mid ah qayb ka mid ah qaybinta tamarta signalka wax soo saarka iyada oo loo marayo qaybta korantada iyo isku xidhka magnetic field si ay u noqdaan qayb ka mid ah wax soo saarka dhamaadka isku-xidhka, iyo inta soo hartay wax soo saarka dhamaadka si loo dhamaystiro qaybinta korontada.
Ø Awood qaybsiga lammaanaha oo aan si siman loo qaybin.Waxa kale oo loo yaqaannaa sampler power.
Lammaanaha jihada
Lammaanayaasha jihooyinka ayaa caadi ahaan loo adeegsadaa jihada socodka la cayimay ee calaamadaha microwave-ka ee muunad, ujeedada ugu weyni waa in la kala saaro oo la go'doomiyo calaamadda, ama si liddi ku ah isku dhafka calaamadaha kala duwan, maqnaanshaha culeyska gudaha, lamaanayaasha jihada badanaa waa shabakad afar-deked ah.
Lamaanaha daloolka
Sifooyin: Qaadista awood sare, wax qabad hooseeya.
Sababta:
1. Godka waxaa ka buuxa hawo, iyo habka gudbinta, kala-baxa warbaahinta ee ay sababtay dhexdhexaadiyaha hawada ayaa aad uga hooseeya.
2. Suunka siliga isku xidhan waxa uu guud ahaan ka samaysan yahay kirishbooye leh korantada wanaagsan (sida qalinka oo lagu dhejiyo dusha naxaasta), khasaaraha kirishtaanku asal ahaan waa dayac.
3. Mugga daloolka weyn, kuleylka degdega ah.U adkaysiga awoodda sare.
Attenuator
Ø Attenuator-ku waa unug laba-deked ah oo is-weydarsada
Attenuators inta badan la isticmaalo waa nuugista nuugista.
Attenuator-ka coaxial waxaa inta badan loo adeegsadaa injineernimada, oo ka kooban shabakad attenuation "π" ama "T".
Attenuators Coaxial sida caadiga ah waxay leeyihiin laba nooc oo attenuators go'an iyo variable.
Ø Attenuators waxaa inta badan loo isticmaalaa si loo xakameeyo gudbinta tamarta ee calaamadaha microwave ee nidaamka ogaanshaha iyo isticmaalka tamarta xad-dhaaf ah, sidaas darteed fidin baaxadda firfircoon ee cabbirka signalada, sida mitir koronto, spectrum analyzer, amplifiers, qaatayaasha, iwm.
Mareegta:https://www.lintratek.com/
#Amplifier 4g #Ku celiska 4g
衰减器
Ø衰减器是二端口互易元件
Ø衰减器最常用的是吸收式衰减器.
Ø工程中通常使用的是同轴型衰减器，由“π”型或“T”型衰减网络组成。
Ø同轴衰减器通常有固定及可变衰减两种。
Ø衰减器主要用于检测系统中控制微波信号传输能量、消耗超额扃量，因老的手菕，因耷的手臏了。围，诸如功率计，频谱分析仪，放大器，接收器等。
Waqtiga boostada: Jan-18-2024