Kuwana kweAntenna kunoreva kuwana simba rakasvibira kweantenna munzira yakatarwa kana tichienzanisa neantenna inokodzera nzvimbo. Inomiririra kugona kwemwaranzi kweantenna munzira yakatarwa, kureva kuti, kugamuchira masaini kana kushanda zvakanaka kweantenna munzira iyoyo. Kuwana kweAntenna kwakakwira, ndiko kuti antenna inoshanda zvakanaka munzira yakatarwa uye inogona kugamuchira kana kutumira masaini zvinobudirira. Kuwana kweAntenna kunowanzo ratidzwa mumadecibel (dB) uye chimwe chezviratidzo zvakakosha zvekuongorora mashandiro eAntenna.
Tevere, ndichakuratidzai kuti ndeapi mazano ekutanga ekuwana antenna uye maverengero ekuwana antenna, nezvimwewo.
1. Nheyo yekuwedzera antenna
Mukufunga kwedu, kuwedzera kweantenna inhamba yesimba rechiratidzo rinogadzirwa neantenna chaiyo uye antenna yenzvimbo yakakodzera panzvimbo yakati sandara pasi pesimba rekupinda rakafanana. Pfungwa yeantenna yenzvimbo inotaurwa pano. Chii ichocho? Kutaura zvazviri, iantenna iyo vanhu vanofungidzira kuti inoburitsa masaini zvakaenzana, uye pateni yayo yemwaranzi yechiratidzo ibhora rakapararira zvakaenzana. Kutaura zvazviri, maantenna ane nzira dzekuwana mwaranzi (dzinozonzi nzvimbo dzemwaranzi). Chiratidzo chiri pamusoro pemwaranzi chichava chakasimba kupfuura kukosha kwemwaranzi yeantenna yenzvimbo yedzidziso, nepo mwaranzi yechiratidzo kune dzimwe nzira ichidzikira. Kuenzanisa pakati pekukosha chaiko nekwakakosha kwedzidziso pano ndiko kuwedzera kweantenna.
Mufananidzo unoratidzaRM-SGHA42-10modhi yechigadzirwa Wana data
Zvakakosha kuziva kuti maantenna asingashande anowanzoonekwa nevanhuwo zvavo haangowedzere simba rekutumira chete, asiwo anoshandisa simba rekutumira. Chikonzero nei achiri kuonekwa seane simba rekuwedzera ndechekuti mamwe mafambiro haashande zvakanaka, nzira yemwaranzi yakabatana, uye mwero wekushandiswa kwechiratidzo unovandudzwa.
2. Kuverenga kwekuwedzera kweantenna
Kuwana antenna kunomiririra mwero wemwaranzi yakabatana yesimba rewireless, saka zvine chekuita ne antenna radiation pattern. Kunzwisisa kwakajairika ndekwekuti kana lobe huru yakatetepa uye lobe yedivi iri mu antenna radiation pattern ikaderera, kuwedzera kwekuwedzera. Saka ungaverenga sei kuwedzera kwe antenna? Kune general antenna, fomura G (dBi) = 10Lg {32000/(2θ3dB, E × 2θ3dB, H)} inogona kushandiswa kufungidzira kuwedzera kwayo. fomura,
2θ3dB, E uye 2θ3dB, H ndiwo hupamhi hwemwenje weantenna pamatanho maviri makuru zvichiteerana; 32000 idata rekuongorora nhamba.
Saka zvingarevei kana transmitter isina waya ye100mw iine antenna ine gain ye +3dbi? Kutanga, shandura simba re transmit kuita signal gain dbm. Nzira yekuverenga ndeiyi:
100mw=10lg100=20dbm
Wobva waverenga simba rese rekutumira, iro rakaenzana nehuwandu hwesimba rekutumira uye kuwedzera kweantenna. Nzira yekuverenga ndeiyi inotevera:
20dbm+3dbm=23dbm
Pakupedzisira, simba rekutumira rakaenzana rinoverengerwazve seizvi:
10^（23/10）≈200mw
Nemamwe mashoko, antenna ye +3dbi gain inogona kuwedzera simba rekutumira rakaenzana kaviri.
3. Maantenna anowanikwa pamwe chete
Maantenna emarouter edu akajairika asina waya maantenna anotenderera kumativi ese. Ruvara rwayo rwemwaranzi rwuri panzvimbo yakatwasuka yakatarisana neantenna, uko kuwedzera kwemwaranzi kwakanyanya, nepo mwaranzi iri pamusoro nepasi peantenna isina simba zvakanyanya. Zvakafanana nekutora chiratidzo chechiratidzo wochibata zvishoma.
Kuwana antenna kungori "kuumbwa" kwechiratidzo, uye saizi yekuwanikwa inoratidza mwero wekushandiswa kwechiratidzo.
Kunewo antenna yeplate yakajairika, iyo inowanzova antenna inotungamira. Ruvara rwayo rwemwaranzi rwuri munzvimbo yakaita sefeni pamberi peplate, uye masaini mune dzimwe nzvimbo haana simba zvachose. Zvakafanana nekuwedzera chifukidziro chechiedza kugirobhu remwenje.
Muchidimbu, maantenna ane simba rekuwedzera ane mabhenefiti ekushandisa nguva yakareba uye masaini ari nani, asi anofanira kurasikirwa nemwaranzi munzira dzakasiyana (kazhinji nzira dzinoraswa). Maantenna ane simba rekuwedzera nguva anowanzova nenzvimbo yakakura yekufambisa asi nzvimbo pfupi. Kana zvigadzirwa zvisina waya zvabuda mufekitori, vagadziri vanowanzozvigadzirisa zvichienderana nemamiriro ekushandiswa.
Ndingada kukurudzira zvimwe zvigadzirwa zveantenna zvine pundutso yakanaka kune wese munhu:
RM-BDHA056-11 (0.5-6GHz)
RM-DCPHA105145-20A（10.5-14.5GHz）
RM-SGHA28-10（26.5-40GHz）
Nguva yekutumira: Kubvumbi-26-2024
