Antena ya V yahinduwe ni iki?
Antene ya V ihinduriwe ni ubwoko bufatika bwa antene ya dipole ikoreshwa hagati. Aho gushyira ibintu bibiri bitanga urumuri mu murongo ugororotse utambitse, aho amashanyarazi azamurwa mu mwanya wo hejuru mu gihe amaboko abiri ya antene amanuka yerekeza hasi.
Iyo urebye ku ruhande, imiterere isa n'inyuguti ya V igaragara hejuru, ari na yo ituma antene yitwa. Iyi gahunda igabanya umwanya wo kuyishyiramo kandi ubusanzwe isaba inkingi imwe gusa yo hagati, bigatuma ikurura itumanaho rya HF, kuyishyira mu kibuga, kuyikurikirana no kuyishyiramo aho umwanya cyangwa inyubako zo kuyishyigikira ari nke.
Nubwo antene za V zihindagurika zikunze kujyana n'umurongo wa HF wa 3–30 MHz, frequency yazo ikoreshwa igenwa n'uburebure bw'amashanyarazi aho kuba igenwa n'intera imwe idahinduka. Imiterere y'ibanze imwe ishobora gupimwa cyangwa guhindurwa ku zindi porogaramu za RF.
Imiterere n'amahame ngenderwaho y'imikorere
Antene isanzwe ya V ihinduriwe igizwe n'ibintu bibiri biyobora amashanyarazi bifite uburebure bungana, bihujwe n'aho bigaburira biri ku gasongero. Aho bigaburira hagati hashyirwa ku giti cy'umurinzi, umunara, inkingi yo hejuru y'inzu, cyangwa ikindi kintu kidatwara amashanyarazi, mu gihe impera z'ibintu byombi zimanuwe kandi zigafatwa n'ibyuma bikingira amashanyarazi.
Antene muri rusange yakozwe nk'umusemburo w'urumuri. Umuyoboro wa RF uba ukomeye cyane hafi y'aho umuyoboro unyura kandi ugenda ugabanuka buhoro buhoro ugana ku mpera zifunguye. Ibintu bibiri bifite imiyoboro y'amashanyarazi y'icyerekezo gitandukanye, bigatuma habaho amashami ya elegitoroniki ahuzanya kugira ngo akore imiterere rusange y'imirasire ya antene.
Bitandukanye na antene igenda, dipole ya V isanzwe ihinduka ishyigikira ikwirakwizwa ry'umuyoboro w'amashanyarazi uhagaze. Bityo, imikorere yayo iterwa cyane n'uburebure bw'ibintu, impedance y'aho amashanyarazi anyura, inguni y'umurambararo, umurambararo w'umuyoboro w'amashanyarazi, uburebure bw'aho ashyirwa, n'ibintu biyikikije.
Inguni y'Umutwe n'Ubumeteri bwo Gushyiraho
Inguni iri hagati y'amaboko abiri ya antene yitwa inguni y'isonga cyangwa inguni irimo. Imiterere isanzwe ikoreshwa ikoresha inguni iri hagati ya 90° na 120°, nubwo agaciro kayo gaterwa n'umuvuduko wagenwe, impedance, umwanya uhari, n'imiterere y'imirasire wifuza.
Kugabanya inguni y'isonga bigabanya aho umurongo ugana, ariko binahindura uburyo amaboko abiri ya antene ahurira. Uko amaboko agenda yegerana, impedance y'aho umuyoboro unyura n'umuvuduko w'amajwi bishobora guhinduka, kandi kwiyongera k'umuvuduko w'amajwi gushobora kugabanuka gato.
Ubusanzwe, agasongero kagomba gushyirwa hejuru kandi katagera ku nyubako ziyobora amashanyarazi zikikije uko bishoboka kose. Nta tegeko rusange rivuga ko kagomba kuguma munsi ya kimwe cya kane cy'uburebure bw'umurambararo. Ahubwo, uburebure bwo gushyiraho bugomba gutoranywa hakurikijwe inguni ikenewe yo kuzamura, uburyo bwo gukwirakwiza, inkunga ihari, n'imiterere y'ubutaka.
Insinga zigomba kandi kuguma hejuru y'ubutaka mu mutekano kandi kure y'abantu, inyubako, insinga z'amashanyarazi n'ibintu by'icyuma.
Ingano n'uburebure bw'ibice
Antene nyinshi za V zihinduriwe zikozwe zifite uburebure bwa conductor hafi kimwe cya kabiri cy'uburebure ku murongo wagenwe. Mu by'ukuri, uburebure busanzwe bukunze guhindurwa gato kubera ko umurambararo wa conductor, insulation, uburebure bwo gushyiraho, inguni yo hejuru, n'ibikoresho biri hafi bigira ingaruka ku murambararo wa resonant.
Uburebure bw'umurambararo bw'ahantu hihariye bufitanye isano n'umuvuduko wa:
[\lambda = \frac{c}{f}]
aho:
- (\lambda) ni uburebure bw'umurambararo;
- (c) ni umuvuduko w'urumuri;
- (f) ni inshuro y'imikorere.
Iki gipimo gitanga igereranya ry’ibanze, ariko ingano za antene za nyuma zigomba kwemezwa binyuze mu gupima igihombo cya elegitoroniki cyangwa ibipimo by’igihombo cyo kugaruka na VSWR.
Ishusho y'imirasire
Imiterere y'imirasire ya antene ya V ihinduriwe ifitanye isano n'iya dipole y'igice cy'umuraba utambitse, ariko kunama ibintu hasi bihindura ikwirakwizwa ry'umurima w'ibice bitatu.
Dipole igororotse itambitse muri rusange itanga imirasire myinshi ku nsinga kandi ipfundika ku mpera zayo. Mu buryo bwa V buhinduriwe inyuma, amaboko amanuka akunda kuzuza zimwe muri izi pfundika, bigatuma habaho ubwinshi bwa azimuth bungana kandi akenshi bungana.
Bityo, antene ntigomba kwitwa ko ikora mu cyerekezo kimwe. Bitewe n'inguni y'isonga, uburebure hejuru y'ubutaka, imiterere y'ubutaka, n'inshuro imikorere ikorwa, imiterere itambitse ishobora kuba ifite icyerekezo kimwe cyangwa ikagumana icyerekezo kiringaniye.
Uburebure bwo gushyiraho bigira ingaruka zikomeye ku miterere y'uburebure. HF inverted V iri hasi cyane ishobora gutanga imirasire ikomeye y'inguni nini, ishobora kuba ingirakamaro mu itumanaho rya Near Vertical Incidence Skywave. Gushyiraho urwego rwo hejuru bishobora gushyigikira inguni zo hasi zo guhaguruka zikwiriye itumanaho rya kure.
Polarization
Antene ya V ihindagurika ifatwa nk'aho ishingiye ku buryo butambitse cyane kuko ibice by'amashanyarazi biva mu bice bibiri bihanamye bikomezanya.
Ariko, amaboko ahanamye nayo ashyiramo ibice by’ubutaka bihagaze. Uruhare rwabyo ruterwa n’inguni y’umusozo, icyerekezo cya antene, uburebure bw’aho bishyirwa, ubwiza bw’ubutaka, n’ibidukikije biyikikije. Kubera iyo mpamvu, ubwiyongere nyabwo mu gushyiraho nyabwo bushobora kuba butambitse neza mu cyerekezo cyose.
Guhuza uburyo bwo kugaburira no kwirinda ingaruka
Kubera ko V ihinduriwe ku murongo ari antene iringaniye, ni byiza kuyikoresha umurongo ugororotse cyangwa gukoresha balun ikwiye mugihe uyihuza n'insinga ya coaxial idahagaze neza.
Balun ifasha kugabanya umuvuduko w’amashanyarazi usanzwe ku murongo w’amashanyarazi. Iyo hatabayeho kugenzura neza umuvuduko w’amashanyarazi, insinga ya coaxial ishobora kuba igice cya sisitemu yo kurabagirana, igahindura impedance ya antene, imiterere y’imirasire, polarization, n’imikorere y’urusaku.
Impedansi y'injira igirwaho ingaruka na:
- Inguni y'umurambararo
- Uburebure n'umurambararo w'ibice
- Uburebure hejuru y'ubutaka
- Uburyo bwo gutwara amashanyarazi ku butaka
- Inyubako zegereye
- Imiterere y'umurongo w'ibiryo
- Inshuro zo gukora
Nyuma yo gushyiraho, injeniyeri zigomba gupima igihombo cyo kugaruka cyangwa VSWR no kugabanya ibintu cyangwa guhindura umuyoboro uhuye nibiba ngombwa.
Ibyiza bya Antena ya V yahinduwe
Imiterere ya V ihinduriwe inyuma itanga inyungu nyinshi zifatika:
- Isaba inkunga imwe gusa yo hagati
- Ifata umwanya muto ugororotse ugereranyije na dipole igororotse
- Kubaka byoroshye kandi bihendutse
- Bikwiriye gushyirwamo ibintu bishobora kwimurwa cyangwa gushyirwaho
- Itanga uburyo bwagutse bwo gukwirakwiza azimuth
- Ishobora gukorerwa gukoreshwa mu itsinda rimwe cyangwa mu matsinda menshi
- Ifite akamaro mu itumanaho rya HF na porogaramu za NVIS
Imbibi z'igishushanyo
Antene ifite kandi imbogamizi nyinshi:
- Impedansi y'aho feed-point ihinduka bitewe n'inguni y'umusozo
- Inyungu ishobora kuba iri hasi gato ugereranyije n'iya dipole ihagaze neza
- Imikorere ishingiye ku burebure bw'aho ishyirwa n'imiterere y'ubutaka
- Insinga nke zishobora gutera impungenge ku mutekano no guhomba
- Inyubako z'icyuma zegereye aho zishobora guhindura imiterere y'imirasire
- Verisiyo za Resonant muri rusange zifite umuvuduko muto wo gukora
- Uburyo budakwiye bwo gukoresha umurongo w'itumanaho bushobora guteza imirasire isanzwe
Porogaramu zisanzwe
Antene za V zihinduriwe zikunze gukoreshwa muri:
- Itumanaho rya radiyo ya HF
- Sisitemu zo kohereza no kwakira za Shortwave
- Radiyo z'abatarabigize umwuga
- Itumanaho ryihutirwa n'iry'akazi mu rwego rw'akazi
- Sisitemu za Skywave zegereye aho ibintu bihagaze
- Gukurikirana radiyo no kugenzura spectrum
- Sitasiyo z'itumanaho zigendanwa
- Igerageza ryo kwigisha antena, kwigana, no gupima
Akamaro k'Ubwubatsi
Antene ya V ihinduriwe inyuma igaragaza uburyo impinduka nto mu miterere y'antene ishobora kugira ingaruka ku kubuza, uburinganire, kwiyongera, no gukwirakwira kw'imirasire.
Gusobanukirwa iyi mibanire ni ingirakamaro atari mu gushushanya insinga na antena gusa, ahubwo no mu guteza imbere no gusuzuma antena za interineti, antena z'amahoni, antena z'amajwi, sisitemu za radar, na porogaramu zo gupima RF.
RF MISOitanga ibisubizo bya antene na mikoroonde mu gupima RF, itumanaho, radar, gupima antene, no guhuza sisitemu. Gusobanukirwa neza inyigisho z'ibanze za antene bifasha injeniyeri guhitamo ibicuruzwa bikwiye no gusuzuma neza ingano y'umuvuduko, inyungu, polarisation, ubugari bw'imirasire, VSWR, n'imikorere y'imirasire.
Kugira ngo umenye byinshi kuri antene, sura:
Igihe cyo kohereza: Nyakanga-17-2026
