Sebazi re antenna, antenna yemotokari ine zvivakwa zvekushanda zvakafanana kune mamwe ma antenna, uye ichasangana nematambudziko akafanana mukushandiswa.
1. Chekutanga, ndeupi hukama pakati pechinzvimbo chekuisa cheantenna yemotokari uye kutungamira kwayo?
Muchiono, antenna yemotokari yakaiswa pamotokari haina kwainotungamira munzira yakachinjika, asi nekuda kwechimiro chisina kujairika chemuviri wemotokari uye nzvimbo yekumisikidza antenna, kuisirwa chaiko kweiyo mobile antenna kune kumwe kutungamira, uye kuita kwe. iyi directivity yakasiyana neiyo yeinotungamira antenna.Mamiriro emhando yeantennas emota haana kurongeka uye anosiyana kubva pamota kuenda kumota.
Kana iyo antenna yakaiswa pakati pedenga remba, iwo antenna mwaranzi kumberi nekumashure nzira ichave yakasimba zvishoma pane yekuruboshwe nekurudyi nzira.Kana iyo antenna yakaiswa kune rimwe divi, iyo radiation mhedzisiro iri nani zvishoma kune yakatarisana.Naizvozvo, isu dzimwe nguva tinoona kuti kana isu tichienda nenzira imwechete, mhedzisiro yekutaurirana yakanaka, asi kana tadzokera kumashure, iyo yakananga yekutaurirana mhedzisiro yakasiyana kwazvo, nekuti iyo antenna radiation mhedzisiro pamativi ese emota akasiyana.
2. Nei zvikwangwani zvekutaurirana zvakananga zvichipindirana mukushandiswa kweV/UHF nhare?
Kazhinji, V/UHF frequency mafungu ane nzira dzakawanda panguva yekutapurirana, mamwe anosvika painogashira mutsetse wakatwasuka, uye mamwe anosvika pakugashira mushure mekufungisisa.Kana masaisai achipfuura nepadanda rakananga uye masaisai anoratidzwa ari muchikamu chimwe chete, kukwirira kwemasaisai maviri kunoguma nekusimbaradzana kwesimba rechiratidzo.Kana masaisai akananga uye anoratidzwa ari muzvikamu zvakapesana, nzvimbo yavo yepamusoro inodzima imwe neimwe kunze.Sezvo chinhambwe chiri pakati pekufambisa nekugamuchira chiteshi cheredhiyo chemotokari chichichinja nguva dzose kana ichifamba, kusimba kweredhiyo wave kunochinjawo zvakanyanya, izvo zvinoratidzwa muchiratidzo chepakati.
Nekumhanya kwakasiyana kwekufamba, nguva yekuchinjika shanduko yeredhiyo wave kusimba kwakasiyanawo.Mutemo wekuchinja ndewekuti: iyo yakakwirira yekushanda frequency, iyo ipfupi yewavelength, iyo inokurumidza kukurumidza kufamba, iyo yakakwirira frequency yeinopindirana chiratidzo.Naizvozvo, kana iyo discontinuity yechiratidzo ichikanganisa zvakanyanya kutaurirana, unogona kuderedza zvishoma nezvishoma kumhanya kwekufamba, tsvaga nzvimbo iyo iyo superposition chiratidzo chakasimba, misa mota kuti utaure zvakananga, wozodzokera munzira.
3. Iyo antenna yemotokari yakatwasuka kuisirwa kana kuiswa kwe oblique kuri nani?
Mota zhinji dzinoshandisa vertical antennas nekuda kwezvikonzero zvinotevera: chekutanga ndechekuti vertically polarized antenna theoretically haina gwara mugwara rakachinjika, kuitira kuti redhiyo yemotokari mukushandisa nhare haifanirwe kunetseka kurongedza kutungamira kweantenna;Chechipiri, iyo antenna yakatwasuka inogona kushandisa simbi ganda seyayo chaiyo oscillator, kuitira kuti kana yakamira antenna iri mukushandiswa chaiko, hafu chete yekugadzira inogona kuiswa, uye imwe yese inogona kutsiviwa nemuviri wemotokari, iyo isingangodzikisi. mutengo, asiwo unofambisa kugadzwa uye kushandiswa.Chechitatu ndechekuti antenna yakatwasuka inotora nzvimbo diki, uye kupikisa kwemhepo kweantenna kudiki, izvo zvinobatsira kukurumidza kufamba.
Kubva pakuona uku, chikamu chatakaisa ihafu chete yeantenna yakatwasuka.Naizvozvo, kana antenna yakakwidziridzwa diagonally kune rimwe divi, masaisai eredhiyo anoburitswa neantenna haasi mafungu akatwasuka, asi musanganiswa wemafungu akatwasuka uye akatwasuka polarized.Kana iyo antenna inogashira yerumwe rutivi inogamuchira vertically polarized mafungu, Simba rechiratidzo chinogamuchirwa rinoderedzwa (nekushomeka kwakadzikira polarization), uye neimwe nzira kune yakagamuchirwa chiratidzo.Pamusoro pezvo, iyo oblique antenna inoita kuti mwaranzi isaite, iyo inoratidzwa semwaranzi yekumberi yeantenna yakakura kupfuura yekumashure mwaranzi, zvichikonzera kunanga.
4. Maitiro ekugadzirisa kukanganiswa kweruzha kunounzwa neantenna yemotokari kana uchigamuchira masaini?
Kupindira kweAntenna ruzha kunowanzo kukamurwa kuita kupindira kwekunze uye kupindira kwemukati marudzi maviri.Kupindira kwekunze chiratidzo chekuvhiringidza chinogamuchirwa kubva kune antenna kunze kwemotokari, sekuvhiringidza kwemaindasitiri, kukanganiswa kwemagetsi emudhorobha, kumwe kukanganiswa kwemwaranzi yemotokari uye kupindira kwedenga, mhinduro yekukanganisa yakadaro ndiyo nzira yakanakisa yekugara kure nekukanganisa sosi.Kazhinji, FM modhi muV/UHF bhendi ine simba rakasimba rekuramba kukanganiswa kwerudzi urwu.Mushure mechiratidzo chinogona kuvhurwa, iyo yemukati inodzika dunhu remuchina inogona kubvisa kupindira.Nekukanganisa kwemukati, unogona kungoyedza uye nekuteerera kune isina kusimba redhiyo.Kana kukanganisa kusiri kukuru, kunoratidza kuti hapana dambudziko nekukanganiswa kwehurongwa hwemotokari.Kana pane zvimwe zvipingamupinyi zvemukati, kushandisa-on-board transceiver kunogadzirisa akawanda ematambudziko.
Nguva yekutumira: Nov-30-2022
