MaAntenna chishandiso chekutaurirana chakajairika muhupenyu hwedu. Zvisinei, vanhu vazhinji havanyatsoanzwisisa, pamwe vachingoziva chete kuti anoshandiswa kutumira nekugamuchira masaini.
Sezvineiwo, sezvo musayendisiti wekuRussia Popov akabudirira kugadzira antenna muna 1894, chishandiso ichi chine nhoroondo yemakore 124.
Nhasi uno, kungave kuri kwebasa revanhuwo zvavo rezuva nezuva nehupenyu hwavo, kana kuti kune masayendisiti ari kuita tsvakurudzo yesainzi, hatigone kurarama tisina mupiro weantennas wakanyarara.
Rudzii rwe "waya" chaizvo inonzi antenna, uye sei yakachinja hupenyu hwedu zvakanyanya kudaro?
Kutaura zvazviri, chikonzero chinoita kuti maantenna ave nesimba kudaro ndechekuti mafungu emagetsi ane simba. Uye chikonzero chikuru chinoita kuti mafungu emagetsi ave nesimba ndechekuti ndiwo ega "simba risinganzwisisike" rinogona kupararira pasina kushandisa chero nzira. Kunyangwe ari munzvimbo isina chinhu, anogona kufamba akasununguka uye anosvika ipapo ipapo.
Dhizaini yekupararira kwemafungu emagetsi
Kuti ushandise zvizere "simba iri risinganzwisisike," unoda antenna. Zvichitaurwa zviri nyore, antenna i "converter" - inoshandura mafungu anotungamirwa anopararira pamutsetse wekutumira kuita mafungu emagetsi anopararira munzvimbo yakasununguka, kana kuti anoita shanduko inodzokera shure.
Basa re antenna
Chii chinonzi wave inotungamirirwa? Zvichitaurwa zviri nyore, wave inotungamirirwa iwave yemagetsi inofamba netambo. Antena inoita sei kuti mafungu anotungamirirwa nemafungu emuchadenga akwanise kuchinja?
Ona mufananidzo uri pazasi:
Basic physics inotiudza kuti kana waya mbiri dzakafanana dziine simba remagetsi rinochinja-chinja, mafungu emagetsi anobuda.
Kana waya mbiri dzakabatana zvakanyanya, mwaranzi inenge isina simba (masimba emagetsi anokonzerwa nemafungu emagetsi anokonzerwa nemafungu ari kumativi akasiyana anenge akanganisana).
Kana waya mbiri idzi dzakapararira, mwaranzi inowedzera (masimba emagetsi anokonzerwa nemafungu ari munzira imwe chete ariwo munzira imwe chete).
Kana kureba kwewaya kwawedzera kusvika pachikamu chimwe muzvina chewavelength, simba remwaranzi rakasimba rinogona kuwanikwa!
Pane simba remagetsi, pane simba remagineti; pane simba remagineti, pane simba remagetsi. Kutenderera uku kunoenderera mberi, zvichikonzera minda yemagetsi nemafungu emagetsi.
Dhayagiramu inoratidzwa pazasi:
Kuchinja kwenzira yemagetsi ari kuyerera muwaya kunoita kuti magetsi ashanduke.
Waya mbiri dzakatwasuka dzinogadzira simba remagetsi dzinonzi dipoles.
Kazhinji, maoko ese ari maviri akaenzana pakureba, saka anonzi symmetrical dipoles.
Dipole ine urefu hwakafanana nehuri kuratidzwa pazasi inonzi half-wave symmetrical dipole.
Kanereta yedipole ine hafu-wave yakafanana
Kubatanidza mativi maviri ewaya kunoishandura kuita antenna yedipole yakapetwa ine hafu-wave.
Kanereta yedipole yakapetwa nehafu-wave yakafanana
Antena yeDipole yakafanana ndiyo inonyanya kushandiswa uye inonyanya kushandiswa. Kutaura chokwadi, chinhu chinopenya hachisi antenna yakakwana. Chinhu chinopenya ndicho chinhu chikuru cheantenna, uye chimiro chayo chinosiyana zvichienderana nekugadzirwa kweantenna. Uye kune mhando dzakasiyana dzeantenna... dzakawanda...
Munyaya inotevera, tichapa sumo yakadzama yemhando dzakasiyana dzeantennas uye hunhu hwadzo.
Kuti udzidze zvakawanda nezve antenna, ndapota shanyira:
Nguva yekutumira: Mbudzi-28-2025
