Ehe. Nekudaro, ekutanga antenna masisitimu akashandisa flat feeder, ayo aive asiri coaxial tambo.
RF coaxial tambo dzinoda kunzwisiswa muzvikamu zviviri.
RF: RF inoreva magetsi emagetsi anogona kupenya munzvimbo, kubva pa300kHz kusvika 300GHz.
RF iredhiyo frequency current, shorthand ye high-frequency alternating electromagnetic wave.
Alternating current inochinja isingasviki ka1000 pasekondi inonzi low-frequency current, uye iyo inochinja kanopfuura ka10000 pasekondi inonzi high{3}}frequency current. RF ndeyepamusoro-frequency current.
RF (300K-300G) ibhendi repamusoro-soro riri mukati meyepamusoro-frequency (inopfuura 10K).
Muchidzidzo chemagetsi, kana ikozvino inoyerera kuburikidza nekonduri, magnetic field inoumbwa yakapoteredza conductor; kana kuchinjanisa ikozvino kuyerera kuburikidza nekondukita, inochinjisa magineti yemagetsi inoumbwa yakatenderedza conductor. Iyi inonzi electromagnetic wave.
Electromagnetic waves ane mafrequency ari pasi pe100kHz anotorwa nePasi uye haakwanise kutapurirana zvine mutsindo. Zvisineyi, masaisai emagetsi ane mafrequency ari pamusoro pe100kHz anogona kupararira nemumhepo uye achiratidzwa neinosphere kumucheto kwekunze kwemhepo, achigonesa kutapurirana{3}kurefu.
Tinodaidza mafungu-frequency electromagnetic waves ane-distance transmission capabilities radio frequency (RF).
RF tekinoroji inoshandiswa zvakanyanya mukutaurirana isina waya; cable terevhizheni masisitimu anoshandisa RF kutapurirana.
Coaxial tambo: Nekuti maviri conductor (inner conductor/outer conductor) ane asymmetrical maererano nevhu, aine mumwe wemukati conductor ari paaxis yeimwe cylindrical outer conductor, inonzi "coaxial cable."
Chimiro checoaxial tambo ndechekuti munda wemagetsi wakavharirwa mukati meiyo yekunze conductor, ichibvumira kushandiswa pakakwirira.
Cherechedza: Kondakita yekunze yecoaxial tambo zvose kondakita uye shielding layer (ichiita sese loop uye inopa anti-kukanganisa kushanda).
Iyo coaxial tambo inoshandiswa kufambisa masaini eRF inonzi "RF coaxial tambo."
Chiratidzo chinotambirwa neantenna chinopfuudzwa kumberi kwekupedzisira kuburikidza nemutsara wekudyisa, uye chiratidzo chinobuda kubva kumucheto kumberi chinopfuudzwa kune akasiyana siyana ekugamuchira michina kuburikidza nemutsetse wekudyisa.
Mazuva ano, tinowanzo kuona macontainer and transmission feeder achishandiswa mumasisitimu ekusimudzira masaini sekutanga-tambo dzemasaini enhare (China Mobile, China Unicom, China Telecom, etc.), tunnels, nedzimba dzepasi.