Umgaqo we-eriyali zonxibelelwano kunye nezixhobo,
indlela yokufumana ngcono kunye nokuhambisa imiqondiso ye-3g / 4g ye-amplifiers ephindaphinda umqondiso?
Iwebhusayithi:https://www.lintratek.com/
Okokuqala, umgaqo we-antenna:
1.1 Inkcazo ye-eriyali:
Isixhobo esinokusasaza ngokufanelekileyo amaza ombane siye kwicala elithile esithubeni okanye sifumane ngokufanelekileyo amaza ombane avela kwicala elithile esithubeni.
1.2 Imisebenzi ye-eriyali:
Ø Uguqulo lwamandla - ukuguqulwa kwamaza akhokelwayo kunye namaza asimahla;Imitha ye-Directional (reception)- ine-directivity ethile.
1.3 Umgaqo wemitha ye-eriyali:
1.4 Iiparamitha ze-antenna
Ipharamitha yemitha
Ø Ububanzi bomqadi wesiqingatha samandla, umlinganiselo wangaphambili ukuya ngasemva;
Ø imo yepolarization, ucalucalulo oluxananazileyo;
Ø Into ethe ngqo, inzuzo ye-eriyali;
Ø Ilobe engundoqo, i-lobe yesibini, ukucinezelwa kwe-sidelobe, ukuzaliswa kweqanda, ukuthotywa komqadi…
Ipharamitha yesekethe
Umlinganiselo we-Voltage we-wave wave VSWR, i-reflection coefficient Γ, i-RL yokubuyisela ilahleko;
Ø I-impedance ye-Zin, ilahleko yokudluliselwa kwe-TL;
Ø ukubekwa wedwa Iso;
Ø Ulandelelwano lwesithathu lwe-Intermodulation PIM3...
I-Antenna ecaleni
Ububanzi beBeam obuthe tye
Umlinganiselo wangaphambili ukuya ngasemva: Ichaza umlinganiselo wamandla asasazeke phambili ukuya kwi-eriyali kunye namandla aphuma ngasemva ngaphakathi kwe-±30°.
Ubudlelwane phakathi kwenzuzo kunye nobungakanani be-eriyali kunye nobude bemitha
Ukunciphisa "isondo", okukhona kugxininiswe umqondiso, ukuzuza okuphezulu, ubukhulu be-antenna bukhulu, kunye ne-beamwidth encinci;
Amanqaku ambalwa abalulekileyo okufumana i-antenna:
I-eriyali sisixhobo sokwenziwa kwaye ayikwazi ukuvelisa amandla.Ukuzuza kwe-antenna kukukwazi nje ukugxila amandla ngokufanelekileyo ukuze usasaze okanye ufumane amaza ombane kwicala elithile.
Ø Ukuzuza kwe-eriyali kuveliswa ngokunyuka kwe-vibrators.Okukhona iphezulu inzuzo, kokukhona ubude be-eriyali.Yandisa inzuzo nge-3dB kwaye uyiphindaphinde ivolumu.
Ukuphakama kwenzuzo ye-eriyali, ingcono i-directivity, ngakumbi amandla agxininise, kunye ne-lobe encinci.
1.5 IiParameters zeRadiation
I-Polarization: ibhekiselele kwindlela ehamba ngayo okanye ekutshintsheni i-vector yendawo yombane esithubeni.
1.6 Iiparamitha zeSekethe
Buyisela ilahleko
Ezimbini, iimveliso ze-eriyali
2.1 Indlela yokuthiywa kwe-Antenna:
Iindidi ze-eriyali:ODP(i-eriyali yepleyiti eyalathiswayo yangaphandle),OOA(i-eriyali ye-omnidirectional yangaphandle),i-IXD(i-eriyali yesilingi yangaphakathi),OCS(i-eriyali ye-eriyali yangaphandle), i-OCA(i-eriyali yeqela langaphandle), i-OYI (i-eriyali ye-Yagi yangaphandle), i-ORA (ukuphosa ngaphandle I-eriyali yomphezulu), IWH(udonga lwangaphakathi olunyuswe i-eriyali) njalo njalo.
Isiqingatha samandla eengile :032,065,090,105,360(i-eriyali yesikhululo esisisiseko) 020,030,040,050,060,075,090,120,160,360 (i-eriyali ephindayo)
Imo yepolarization: R(i-polarization kabini), V(i-polarization enye)
Inzuzo: Ixabiso eliphezulu li-21dbi ngokusekelwe kwixabiso langempela
Iintlobo ezidityanisiweyo: D(intloko yeDin), N(N-uhlobo lwentloko), S(intloko ye-SMA), T(intloko ye-TNC) njalo njalo
Ibhendi yokuphindaphinda:
Ikhowudi yenkcazo: Iileta zamaRoma zibonisa ukuveliswa kwemveliso.Oonobumba kunye namanani alandelayo abonisa i-engile yediphu, imilo, kunye nolunye ulwazi.uhlobo F;V ulawulo lombane;Imodyuli ekude yombane yeRV
2.2 I-Antenna yesiKhululo esisisiseko
I-Antenna ye-Omnidirectional Dual-Frequency Antenna
I-Antenna ye-Three-Frequency
I-Antenna yesilingi
I-Antenna eNgqwesileyo eludongeni
Yagi Antenna
I-Antenna yegridi
I-Broadband Omnidirectional ye-Antenna ye-Log-Periodic Antenna Plate I-Antenna
3.1 ISahluli saMandla
Isahluli samandla sisixhobo esahlula amandla esignali enye yemveliso ibe ziziphumo ezimbini okanye ngaphezulu.Ngokwenyani sisiguquli se-impedance.
Ø Ngaba isahluli samandla singatshintshwa ukuze sithathe indawo yomhlanganisi?
Xa isetyenziswe njenge-synthesizer, ayifuni kuphela ukuba yedwa okuphezulu, umlinganiselo ophantsi wamaza, kodwa igxininisa imfuno yokumelana namandla aphezulu.Ithathela ingqalelo into yokuba izibuko eziphumayo zesiqhelo esisetyenziswayo esiqhekezayo samandla asihambelani, iliza elikhulu lokuma;Ngenxa yokunganyangeki kwamandla aphantsi kwe-microstrip power splitter, asikukhuthazi ukusebenzisa i-splitter yamandla ukubuyisela umhlanganisi.
I-Cavity Power Division
Isine, i-coupler intshayelelo
4.1 Umlingane
Ø I-Coupler luhlobo lwecandelo elihambisa amandla omqondiso wegalelo ngokusebenzisa intsimi yombane kunye nokudibanisa intsimi yemagneti ukuze ibe yinxalenye yesiphumo sokudibanisa isiphelo, kunye nenye isiphumo sokuphela kwesiphumo sokugqiba ukuhanjiswa kwamandla.
Ø Ulwabiwo lwamandla kwi-coupler ayohlulwa ngokulinganayo.Ikwabizwa ngokuba yisampula yamandla.
I-coupler yomkhombandlela
Ii-couplers ezihambelanayo ziqhele ukusetyenziswa kunye nolwalathiso oluchaziweyo lokuhamba kweempawu ze-microwave zesampulu, eyona njongo iphambili kukwahlula kunye nokwahlula isiginali, okanye ngokuchaseneyo ukuxuba imiqondiso eyahlukeneyo, ngokungabikho komthwalo wangaphakathi, i-couplers eyalathiswayo ihlala iyinethiwekhi enezibuko ezine.
Cavity coupler
Iimpawu: Ukuthwala amandla aphezulu, ukusebenza kwelahleko ephantsi.
Isizathu:
1. I-cavity igcwele umoya, kwaye kwinkqubo yokudluliselwa, ukuchithwa kweendaba ezibangelwa yi-air medium kuphantsi kakhulu.
2. Ibhanti yocingo oludityanisiweyo ngokuqhelekileyo lwenziwa ngumqhubi kunye ne-conductivity efanelekileyo yombane (njengesilivere yesilivere kwi-copper surface), kwaye ilahleko ye-conductor ayinanto.
3. Umthamo omkhulu wombhobho, ukutshatyalaliswa kobushushu okukhawulezayo.Ukumelana namandla aphezulu.
Umncedi
Ø I-attenuator yi-reciprocal element enezibuko ezimbini
Ezona zixhasi zixhaphakileyo zi-attenuators zokufunxa.
I-coaxial attenuator idla ngokusetyenziswa kubunjineli, equka i-“π” okanye “T” inethiwekhi yokuthomalalisa.
I-coaxial attenuators ihlala ineendidi ezimbini ze-fixed attenuators eziguquguqukayo.
Ø Izithinteli zisetyenziswa ikakhulu ukulawula amandla othumelo lwemiqondiso ye-microwave kwinkqubo yobhaqo kwaye isebenzise amandla agqithisileyo, ngaloo ndlela yandisa uluhlu oluguquguqukayo lomlinganiselo womqondiso, onje ngeemitha zamandla, abahlalutyi be-spectrum, i-amplifiers, abamkeli, njl.
Iwebhusayithi:https://www.lintratek.com/
#Isandisi 4g #Uphinda 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功率计，频谱分析仪，放大器，接收器等。
Ixesha lokuposa: Jan-18-2024