Antenna inokwanisa kufambisa kana kugamuchira electromagnetic (EM) mafungu.Mienzaniso yeaya mafungu emagetsi anosanganisira chiedza chinobva kuzuva, uye masaisai anogamuchirwa nenharembozha yako.Meso ako ari kugamuchira antennas anoona mafungu emagetsi pane imwe frequency."Unoona mavara (tsvuku, girini, bhuruu) mumafungu ega ega. Tsvuku nebhuruu angori mafambiro akasiyana emasaisai ayo maziso ako anogona kuona.
Ese masaisai emagetsi anopararira mumhepo kana muchadenga nekumhanya kwakafanana.Iyi kumhanya inosvika $671 miriyoni paawa (1 bhiriyoni yemakiromita paawa).Kumhanya uku kunonzi kumhanya kwechiedza.Sipidhi iyi inomhanya zvakapetwa kamirioni kupfuura kumhanya kwemasaisai eruzha.Kumhanya kwechiedza kwaizonyorwa muequation ye "C".Tichayera urefu hwenguva mumamita, mumasekonzi, uye mumakirogiramu.Equations yeramangwana tinofanira kurangarira.
Tisati tatsanangura frequency, isu tinofanirwa kutsanangura kuti electromagnetic waves chii.Iyi inzvimbo yemagetsi inopararira kubva kune imwe nzvimbo (antenna, zuva, shongwe yeredhiyo, chero).Kufamba mundima yemagetsi kune simba remagineti rakabatana nayo.Iyi minda miviri inoumba electromagnetic wave.
Chadenga chinobvumira masaisai aya kuita chero chimiro.Asi iyo inonyanya kukosha chimiro ndeye sine wave.Izvi zvakarongwa muMufananidzo 1. Mafungu eElectromagnetic anosiyana nenzvimbo nenguva.Kuchinja kwenzvimbo kunoratidzwa muMufananidzo 1. Kuchinja kwenguva kunoratidzwa mumufananidzo 2.
mufananidzo 1. Sine wave yakarongwa sebasa renzvimbo.
mufananidzo 2. Ronga sine wave sekushanda kwenguva.
Masaisai ari periodic.Iyo wave inodzokorora kamwe sekondi yega yega mu "T" chimiro.Yakarongwa sebasa munzvimbo, nhamba yemamita mushure mekudzokororwa kwemafungu inopiwa pano:
Izvi zvinonzi wavelength.Frequency (yakanyorwa "F") ingori nhamba yezvikamu zvakakwana zvinopedzwa nesaisa musekondi imwe (makore mazana maviri ekutenderera anoonekwa sechiitiko chenguva yakanyorwa 200 Hz kana 200 "hertz" pasekondi).Masvomhu, iyi ndiyo fomula yakanyorwa pazasi.
Kuti munhu anokurumidza kufambisa sei zvinoenderana nesaizi yavo yenhanho (wavelength) yakapetwa nechiyero chenhanho (frequency).Kufamba kwemafungu kwakafanana nekumhanya.Inokurumidza sei masaisai oscillates ("F") anopetwa nehukuru hwematanho anotorwa nemasaisai nguva yega yega ( ) inopa kumhanya.Iyo inotevera formula inofanirwa kuyeukwa:
Kupfupikisa, frequency ndiyo chiyero chekukurumidza kunoita masaisai.Ese masaisai emagetsi anofamba nekumhanya kwakafanana.Naizvozvo, kana electromagnetic wave oscillates nekukurumidza kupfuura wave, iyo inokurumidza wave inofanirawo kuve nepfupi wavelength.Kureba kwewavelength zvinoreva kuderera kwehuwandu.
Nguva yekutumira: Zvita-01-2023
