Polarization yedenderedzwa rerudyi (RHCP) uye polarization yedenderedzwa reruboshwe (LHCP)tsanangura nzira iyo vector yemagetsi inotenderera nayo sezvo mafungu emagetsi achipararira. Kuzivikanwa kwakarurama kunokosha mu satellite links, radar, antenna measurement nedzimwe RF systems nekuti antenna dzinotumira nekugamuchira dzinofanira kushandisa polarization inoenderana kuti dziite kuti simba rifambiswe zvakanaka.
Gwaro iri rinotsanangura tsika yekuona, mutemo wekushandisa ruoko, hukama hwemunda nechikamu, chiyero cheaxial uye zvinhu zvikuru zvekutarisa pakusarudza antenna yakatenderera.
Mienzaniso yeRF MISO Denderedzwa Rakatenderera Nyeredzi Dzinopodzwa
RF MISO inopa mamodheru eantenna enyanga dzakatenderedzwa dzakatenderedzwa dzemabhandi ekushanda akasarudzwa. Mienzaniso iri pazasi inoratidza sarudzo dzakasiyana dzema frequency-range; gara uchisimbisa hunhu hweruoko, chiyero cheaxial, gain, interface uye mechanical data mudhatabhesi remodheru iripo usati wasarudza.
RM-CPHA82124-20Antena yenyanga ine denderedzwa ine polarized 8.2–12.4 GHz |
RM-CPHA1840-12| Antena yenyanga yakatenderera ine polarized 18–40 GHz |
RM-CPHA218-16Antena yenyanga yakatenderera ine mativi maviri kusvika gumi nemasere GHz
Ongorora chikamu chose: Maantenna eRF MISO anotenderera polarization horn, kusanganisira RHCP, LHCP uye sarudzo dze dual-circular-polarization zvichienderana nemuenzaniso.
Chii chinonzi denderedzwa polarization?
Polarization inotsanangura nzira inoteverwa ne electric-field vector panzvimbo yakatarwa muchadenga. Mu linear polarization, vector inoramba iri pamutsetse wakatwasuka. Mu perfect circular polarization, hukuru hwayo hunoramba huripo nepo vector ichitenderera nemadhigirii mazana matatu nemakumi matanhatu panguva yega yega RF cycle. Ma antenna anoshanda anowanzo gadzira nzira yakaita denderedzwa zvishoma, saka denderedzwa rinoongororwa nechiyero che axialWave yakatenderera ine polarized yakanaka ine 0 dB axial ratio; axial ratio yakaderera inoyerwa inoratidza polarization iri pedyo nedenderedzwa.
Kutenderera kwedenderedzwa kunogona kuumbwa nezvikamu zviviri zve orthogonal linear field zvine amplitude yakaenzana uye musiyano wechikamu we plus kana minus 90 degrees. Chiratidzo chehukama hwechikamu che quadrature chinoratidza kana wave iri RHCP kana LHCP pasi pemutemo wataurwa.
RHCP vs LHCP: Taura Musangano weKuona
Kubata ruoko kunogona kuita sekunge kwakadzokera shure kana nzvimbo imwe chete inotenderera ikaonekwa kubva kumativi akasiyana. Kuti usave neruzivo rwakadzama, gara uchitaura nzira yekutarisa. Pasi pemutemo weIEEE unoshandiswa zvakanyanya, kubata ruoko kunotsanangurwa paunenge uchitarisa.munzira yekupararira kwemafungu, kubva kunobva rwendo kuenda kwarunoenda.
Nzira inoshanda ndeyekutarisa chigunwe chako munzira yekupararira. Kana kutenderera kwemagetsi kuchitevera kumonyoroka kweminwe iri kurudyi rwako, wave iri RHCP pasi pemutemo uyu; kana ichitevera kumonyoroka kweruboshwe, iLHCP. Nekuti mamwe magwaro nedzidzo zvinoshandisa maonero akasiyana ekuona, simbisa mutemo uyu mupepa redata reantenna uye maitiro ekuyedza usati waenzanisa mhedzisiro.
Zvikamu zveMunda uye Hukama hweChikamu
Funga nezvezvikamu zviviri zvemafungu emuchadenga zvinofamba nepakati pez-axis. Chikamu chimwe chemagetsi chakatenderedzwa pamwe chete nex ne amplitude Ex; yechipiri yakatarisana pamwe chete ne y ne amplitude Ey. Vector sum yavo ndiyo inosarudza mamiriro ekupokana anokonzerwa.
Kana paine chikamu chimwe chete, mafungu anopokana nemutsara mumwe chete achitevedza axis iyoyo. Kana zvikamu zvese zviri zviviri zviripo, huwandu hwazvo hwehukuru nechikamu zvinosarudza kana mhedzisiro yacho iri pokana yemutsara mumwe chete, yakatenderera kana kuti yakatenderera.
Hukama hwemunda hunogona kupfupikiswa seizvi:
- Kana Exisiri zero uye Eyiri zero, polarization iri mumutsara pamwe chete na x.
- Kana Eyisiri zero uye Exiri zero, polarization iri mumutsara unoenderana ne y.
- Kana zvikamu zvese zviri muchikamu, huwandu hwavo hwevector hunoramba hwakatsetseka pakona yakatarwa.
- Kana zvikamu zvacho zviine amplitude yakaenzana uye musiyano wechikamu che plus kana minus 90 degrees, mhedzisiro yacho ipolarization yakanaka yedenderedzwa.
Kana zvikamu zve orthogonal zvisina kuenzana, kana kuti musiyano wechikamu usiri madhigirii makumi mapfumbamwe chaiwo, munda unotevera ellipse kwete denderedzwa. Ndosaka datasheet re antenna richifanira kutsanangura axial ratio pamusoro pe frequency uye, pazvinenge zvakakodzera, pamusoro pe angular coverage inotarisirwa. Handedness chete haitsananguri polarization quality.
Nei Kufananidza Polarization Kuchikosha
Antena inogamuchira inoburitsa simba guru rinowanikwa kana polarization yayo yakaenzana newave inouya. Mamiriro epolarization akapesana akakodzera akaenzana, saka kusawirirana kweRHCP/LHCP kunogona kukonzera kurasikirwa kukuru kwepolarization. Antena chaiyo inopa kurambwa kwepolarization yakakwana, uye kushanda kwakayerwa kunoenderanawo neaxial ratio, alignment, reflections uye nharaunda yekuyedza yakapoteredza.
Kupenya kubva panzvimbo dzinofambisa magetsi kunogona kuchinja mamiriro ekupokana, uye ma radomes, ma fixtures kana zvivakwa zviri pedyo zvinogona kukanganisa munda. Kuti usimbise zvakanaka, enzanisa ma antenna ese ari maviri pa boresight, shandisa reference inozivikanwa yepokana, enzanisa simba rakagamuchirwa reRHCP neLHCP configurations, uye yera axial ratio uye cross-polarization performance mubhendi rinodiwa.
Maitiro Ekusarudza RHCP kana LHCP Antenna
Usati wasarudza antenna yenyanga yakatenderera, tsanangura zvinodiwa pakushanda pane kusarudza nefrequency chete:
- Rudzi rwemafrequency:simbisa kufukidza kwebhendi yakazara, kwete chete frequency yepakati.
- Kupatsanurana:tsanangura RHCP, LHCP kana dual circular polarization uye mutemo wekubata ruoko.
- Chiyero cheAxial:tarisa muganho unodiwa pakati pehuwandu hwemafungu uye angular coverage.
- Kuwana uye kupatsanura hupamhi:bhajeti rematch link, kufukidzwa kwemari uye zvinodiwa pakuyera daro.
- Kufananidza kweImpedance:ongorora VSWR kana kurasikirwa kwekudzoka pamusoro pebhendi rese.
- RF interface uye simba:simbisa chinobatanidza kana kuti waveguide interface uye zvinodiwa pakugadzirisa simba.
- Kubatanidzwa kwemuchina:simbisai envelopu, interface yekuisa, kurongeka uye zvinodiwa zvakatipoteredza.
Taura nenyanzvi yeRF MISO Antenna
RF MISO ikambani inogadzira uye inopa antenna dzeRF ne microwave. Goveranai huwandu hwema frequency enyu, hunodiwa pakubata, gain, axial ratio, interface uye installation limits kuitira kuti timu yedu ikwanise kubatsira kuona standard model yakakodzera kana kukurukura zvinodiwa pakushandisa.
Ona antenna dzenyanga dzakatenderera dzinoita polarization|Bata RF MISO
Nguva yekutumira: Chivabvu-21-2024
