Chii chinonzi Inverted V Antenna?
Antena yeV yakapindurwa imhando yeantenna yedipole inopihwa pakati. Panzvimbo pekugadzira zvinhu zviviri zvinopenya mumutsara wakatwasuka, nzvimbo yekudyisa inosimudzwa kusvika panzvimbo yepamusoro apo maoko maviri eantenna anodzika pasi akananga pasi.
Kana uchitarisa kubva padivi, chimiro chacho chakafanana nebhii rakaiswa pasi rakatarisa pasi richinzi "V," izvo zvinoita kuti antenna izita racho. Kurongeka uku kunoderedza nzvimbo yekuisa yakataramuka uye kazhinji kunoda danda rimwe chete rekutsigira, zvichiita kuti rikwezve kutaurirana kweHF, kuiswa mumunda, kutarisa redhiyo, uye kuiswa uko nzvimbo kana zvivakwa zvekutsigira zviri zvishoma.
Kunyangwe maantenna eV akapindurwa achiwanzobatanidzwa nebhendi re3–30 MHz HF, frequency yavo yekushanda inotemerwa nehurefu hwemagetsi kwete nefrequency imwe chete yakatarwa. Iyo geometry imwecheteyo inogona kuenzaniswa kana kugadziriswa kune mamwe maRF application.
Maumbirwo uye Nheyo yeKushanda
Antena yeV yakajairwa ine zvinhu zviviri zvinofambisa mhepo zvine hurefu hwakaenzana, zvakabatana nenzvimbo yekudyisa yakaenzana pamusoro. Nzvimbo yekudyisa yepakati yakaiswa padanda resimbi, shongwe, rutsigiro rwedenga, kana chimwe chimiro chisina kufambisa mhepo, nepo magumo ezvinhu zviviri izvi achidzikiswa uye akasimbiswa nemidziyo inodzikisa mhepo.
Antena inowanzogadzirwa se resonant dipole. RF current yakasimba pedyo nenzvimbo yekudyisa uye inodzikira zvishoma nezvishoma ichienda kumagumo akavhurika. Zvinhu zviviri izvi zvine mafungu emagetsi ane divi rakapesana, zvichigadzira minda yemagetsi inobatana kuti igadzire pateni yemwaranzi yeantenna.
Kusiyana neantenna inotenderera, V dipole inopindurwa neresonant inotsigira kugoverwa kwemagetsi anomira. Saka mashandiro ayo anokanganiswa zvakanyanya nehurefu hwezvinhu, feed-point impedance, apex angle, dhayamita yemuchina, hurefu hwekuisa, uye zvinhu zvakakomberedza.
Apex Angle uye Kuisa Geometry
Kona iri pakati pemaoko maviri eantenna inonzi apex angle kana kuti incorporated angle. Magadzirirwo akajairika anoshandisa kona inosvika 90° kusvika 120°, kunyange zvazvo kukosha kwakanyanya kunoenderana nefrequency yakatarwa, impedance, nzvimbo iripo, uye pateni yemwaranzi inodiwa.
Kuderedza kona yepamusoro kunopfupisa tsoka yakatambanuka, asi kunochinjawo kubatana kuri pakati pemaoko maviri eantenna. Sezvo maoko achifamba pedyo, feed-point impedance uye resonant frequency zvinogona kuchinja, uye peak gain inogona kuderedzwa zvishoma.
Musoro wedenga unofanira kuiswa wakareba uye usina zvivakwa zvinofambisa mvura zvakakomberedza sezvinobvira. Hapana mutemo wepasi rose unoti unofanira kuramba uri pasi pehafu yewavelength. Pane kudaro, kukwirira kwekuisa kunofanira kusarudzwa zvichienderana nekona yekukwira inodiwa, nzira yekupararira, rutsigiro rwuripo, uye mamiriro epasi.
Magumo ewaya anofanirawo kugara akachengeteka pamusoro pevhu uye kure nevanhu, zvivakwa, tambo dzemagetsi, nezvinhu zvesimbi.
Kureba kweMaitiro uye Kureba kweElement
Maantenna mazhinji eV akapindurwa akagadzirwa nehurefu hwese hweconductor hunosvika hafu yewavelength pahuwandu hwekushanda hwakagadzirirwa. Mukuita, hurefu hwemuviri hunowanzo gadziriswa zvishoma nekuti dhayamita yeconductor, insulation, urefu hwekuisa, apex angle, uye zvinhu zviri pedyo zvinokanganisa frequency ye resonant.
Hurefu hwemafungu emhepo hunofungidzirwa kuti huri munzvimbo isina chinhu hunoenderana nehuwandu hunotevera:
[\lambda = \frac{c}{f}]
kupi:
- (\lambda) ndiyo wavelength;
- (c) inomhanya kwechiedza;
- (f) ndiyo nguva inoshandiswa.
Iyi equation inopa fungidziro yekutanga, asi zviyero zvekupedzisira zve antenna zvinowanzo simbiswa kuburikidza ne electromagnetic simulation kana zviyero zvekurasikirwa kwekudzoka uye VSWR.
Muenzaniso weMwaranzi
Magadzirirwo emwaranzi eantenna yeV yakapindurwa ane hukama neaya edipole yehafu-wave yakatambanudzwa, asi kukotamira zvinhu pasi kunochinja kugoverwa kwemunda wemativi matatu.
Dipole yakatwasuka yakatwasuka inowanzo buritsa mwaranzi yakawanda padivi rewaya uye maburi akadzika kubva kumigumo yayo. Muchimiro cheV chakapindurwa, maoko anotsvedza pasi anowanzo kuzadza mamwe emaburi aya, zvichiita kuti azimuth coverage ikure uye yakaenzana.
Saka antenna haifanirwe kutsanangurwa yega seyakanangana neimwe. Zvichienderana nekona yepamusoro, kukwirira pamusoro pevhu, hunhu hwevhu, uye frequency yekushanda, pateni yakatambanuka inogona kunge iri yedivi rimwe chete kana kuti inogona kuchengetedza kutungamira kuri pakati nepakati.
Kureba kwekuisa kune simba guru pakuita kwekukwirira. HF yakaderera inverted V inogona kuburitsa mwaranzi yakasimba ye-high-angle, iyo inogona kubatsira pakutaurirana kweNear Vertical Incidence Skywave. Kuisa kwakakwirira kunogona kutsigira ma-take-off angle akaderera akakodzera kutaurirana kure.
Kupatsanurana
Antena yeV yakachinjika yakafanana inowanzoonekwa seyakapatsanurwa zvakanyanya nekuti zvikamu zvemagetsi zvakachinjika zvinobva muzvinhu zviviri zvinotsvedza zvinosimbisana.
Zvisinei, maoko akatsvedza anounzawo zvikamu zvemunda wakamira. Mupiro wavo unoenderana nekona yepamusoro, kurongeka kweantenna, kukwirira kwekuisa, kuratidzwa kwepasi, uye nharaunda yakapoteredza. Nekuda kweizvi, polarization chaiyo mukuisa chaiyo ingasave yakatwasuka zvakakwana munzira dzese.
Kudyisa uye Kufananidza Impedance
Nekuti inverted V iantenna yakaenzana, zviri nani kuiisa netambo yekutumira yakaenzanirana kana kushandisa balun yakakodzera kana ichiibatanidza netambo ye coaxial isina kuenzana.
Balun inobatsira kuderedza simba remagetsi rinowanikwa mumagetsi. Pasina simba remagetsi rakakodzera, tambo ye coaxial inogona kuva chikamu che radiating system, ichichinja antenna impedance, radiation pattern, polarization, uye noise performance.
Iyo input impedance inokanganiswa ne:
- Kona yepamusoro
- Kureba uye dhayamita yechinhu
- Kureba pamusoro pevhu
- Kufambisa kwepasi
- Zvivakwa zviri pedyo
- Kurongeka kwemutsara wekudya
- Kushanda kakawanda
Mushure mekuiswa, mainjiniya vanofanira kuyera kurasikirwa kwekudzoka kana VSWR uye kuchekerera zvinhu kana kugadzirisa network inoenderana kana zvichidikanwa.
Mabhenefiti eInverted V Antenna
Kugadziriswa kweV kwakapindurwa kunopa mabhenefiti akawanda anoshanda:
- Inoda rutsigiro rumwe chete rwepamusoro-soro
- Inogara munzvimbo isina kutwasuka pane dipole yakatwasuka
- Kuvaka kuri nyore uye kwakachipa
- Yakakodzera kuiswa kunotakurika uye kwakasimba
- Inopa ruzivo rwakakura rwe azimuth
- Inogona kugadzirwa kuti ishande nebhendi rimwe chete kana kuti nebhendi dzakawanda
- Inobatsira pakukurukurirana kweHF uye mashandisirwo eNVIS
Miganhu Yekugadzira
Antenna ine zvimwe zvipingamupinyi:
- Kuchinja kweimpedance yefeed-point ne apex angle
- Kuwana kunogona kunge kwakaderera zvishoma pane kwe dipole yakatwasuka yakaiswa zvakanaka
- Kushanda zvakanaka kunoenderana nekukwirira kwekuisa uye mamiriro epasi
- Mativi asina waya anogona kukonzera matambudziko ekuchengetedza uye kurasikirwa
- Zvivako zvesimbi zviri pedyo zvinogona kukanganisa maitiro emwaranzi
- Shanduro dzeResonant dzinowanzova nebandwidth shoma yekushanda
- Kufamba kwenzira isina kunaka kunogona kukonzera mwaranzi yemhando yakajairika
Maitiro Akajairika
Maantenna eV akapindurwa anowanzo shandiswa mu:
- Kutaurirana neredhiyo yeHF
- Masisitimu ekutumira nekugamuchira mawave eShortwave
- Nhepfenyuro dzeredhiyo dzevasina kudzidza
- Kukurukurirana kwepanjodzi uye kwemumunda
- Masisitimu eSkywave ari pedyo neVertical Incidence
- Kutarisa redhiyo uye kutarisa kwe spectrum
- Zviteshi zvekutaurirana zvinotakurika
- Kudzidziswa kweAntena, kutevedzera, uye kuyedza kuyedza
Kukosha kweUinjiniya
Antena yeV yakapindurwa inoratidza kuti shanduko diki mu geometry yeantena inogona sei kukanganisa impedance, polarization, gain, uye radiation coverage.
Kunzwisisa hukama uhwu hakungobatsiri chete pakugadzira waya nemaantenna, asiwo pakugadzira nekuongorora maantenna ebroadband, maantenna ehorn, maantenna arrays, radar systems, uye mapuratifomu ekuyera RF.
RF MISOinopa mhinduro dze antenna ne microwave component pakuongorora RF, kutaurirana, radar, kuyerwa kwe antenna, uye kubatanidzwa kwesystem. Kunzwisisa kwakajeka kwedzidziso ye antenna kunobatsira mainjiniya kusarudza zvigadzirwa zvakakodzera uye kuongorora nemazvo frequency range, gain, polarization, beamwidth, VSWR, uye radiation-pattern performance.
Kuti udzidze zvakawanda nezve antenna, ndapota shanyira:
Nguva yekutumira: Chikunguru-17-2026
