I-antenna yophondo olunezinhlangothi ezimbili ingadlulisa futhi ithole amagagasi kagesi ahlukaniswe ngokuvundlile nangokwe-polarized ngenkathi igcina isimo sendawo singashintshi, ukuze iphutha lokuphambuka kwesimo sesistimu elibangelwa ukushintsha isikhundla se-antenna ukuze kuhlangatshezwane nezidingo zokushintsha kwe-polarization lisuswe, futhi ukuze ukunemba kwesistimu kuthuthukiswe. I-antenna yophondo olunezinhlangothi ezimbili inezinzuzo zokuzuza okuphezulu, ukuqondiswa okuhle, ukuhlukaniswa okuphezulu kwe-polarization, umthamo wamandla aphezulu, njll., futhi ifundwe kabanzi futhi yasetshenziswa. I-antenna ehlukaniswe ngokuvundlile ingasekela i-linear polarization, i-elliptical polarization kanye namagagasi e-circular polarization.
Imodi Yokusebenza:
| Imodi Yokwamukela |
| • Uma i-antenna ithola i-waveform eqondile eqondile ehlukaniswe ngomugqa, i-port eqondile kuphela engayithola, futhi i-port eqondile ihlukaniswe. • Uma i-antenna ithola i-waveform eqondile ehlukaniswe ngomugqa, i-port eqondile kuphela engayithola, futhi i-port eqondile ihlukaniswe. • Uma i-antenna ithola i-waveform ye-elliptical noma eyindilinga ye-polarization, ama-port aqondile navundlile athola izingxenye eziqondile nezivundlile zesignali, ngokulandelana. Kuye nge-polarization eyindilinga yesandla sobunxele (i-LHCP) noma i-polarization eyindilinga yesandla kwesokudla (i-RHCP) ye-waveform, kuzoba nokushiyeka noma ukuqhubekela phambili kwesigaba sama-degree angu-90 phakathi kwama-port. Uma i-waveform i-polarized eyindilinga ngokuphelele, ubukhulu besignali obuvela e-port buzoba bufana. Ngokusebenzisa i-coupler efanele (90 degrees) ye-hybrid, ingxenye eqondile kanye nengxenye evundlile kungahlanganiswa ukuze kubuyiselwe i-waveform eyindilinga noma eyindilinga. |
| Imodi Yokudlulisa |
| • Uma i-antenna iphakelwa yi-port eqondile, idlulisela i-waveform ye-polarization yomugqa oqondile. • Uma i-antenna iphakelwa yi-port evundlile, idlulisela i-waveform ye-polarization yomugqa ovundlile. • Uma i-antenna inikezwa ama-port aqondile navundlile ngomehluko wesigaba sama-degree angu-90, amasignali alinganayo e-amplitude, i-LHCP noma i-RHCP waveform idluliselwa ngokuya ngokusala noma ukuqhubeka kwesigaba phakathi kwezibonakaliso ezimbili. Uma ama-amplitude esignali ama-port amabili engalingani, i-elliptical polarization waveform iyadluliselwa. |
| Imodi Yokudlulisela |
| • Uma i-antenna isetshenziswa kwimodi yokudlulisa nokwamukela, ngenxa yokuhlukaniswa phakathi kwama-port aqondile navundlile, ingathumela futhi yamukele ngesikhathi esifanayo. |
I-RF MISOinikeza uchungechunge olubili lwama-antenna ahlukaniswe kabili, olulodwa olusekelwe esakhiweni se-quad-ridge kanti olunye olusekelwe ku-Waveguide Ortho-Mode Transducer (WOMT). Aboniswe kuMfanekiso 1 kanye noMfanekiso 2 ngokulandelana.
Umfanekiso 1 I-antenna yophondo olunezinhlangothi ezine ehlukaniswe kabili
Umfanekiso 2 I-antenna yophondo olunezinhlangothi ezimbili esekelwe ku-WOMT
Ukufana nomehluko phakathi kwama-antenna amabili kuboniswe kuThebula 1. Ngokuvamile, i-antenna esekelwe esakhiweni se-quad-ridge ingamboza i-bandwidth ebanzi yokusebenza, ngokuvamile engaphezu kwe-octave band, njenge-1-20GHz kanye ne-5-50GHz. Ngamakhono amahle kakhulu okuklama kanye nezindlela zokucubungula ezinembile kakhulu,I-RF MISOI-antenna ye-ultra-wideband dual-polarized ingasebenza kumaza aphezulu wamagagasi e-millimeter. I-bandwidth yokusebenza yama-antenna asekelwe ku-WOMT inqunyelwe yi-bandwidth yokusebenza ye-waveguide, kodwa inzuzo yayo, ububanzi be-beam, ama-side lobes kanye nokuhlukaniswa kwe-cross polarization/port-to-port kungaba ngcono. Njengamanje emakethe, ama-antenna amaningi asekelwe ku-WOMT ane-20% kuphela ye-bandwidth yokusebenza futhi awakwazi ukumboza ibhendi yemvamisa ye-waveguide ejwayelekile. I-antenna esuselwe ku-WOMT dual-polarized eyenzelwe yiI-RF MISOingamboza ibhendi yemvamisa ye-waveguide ephelele, noma ngaphezulu kwebhendi ye-octave. Kunezinhlobo eziningi ongakhetha kuzo.
Ithebula 1 Ukuqhathaniswa kwama-antenna ahlukaniswe kabili
| Into | Isekelwe ku-Quad-ridge | Isekelwe ku-WOMT |
| Uhlobo lwe-Antenna | Uphondo Oluyindilinga noma Oluyinxande | Zonke Izinhlobo |
| I-bandwidth yokusebenza | Ibhendi ebanzi kakhulu | I-bandwidth ye-Waveguide noma i-Extended Frequency WG |
| Inzuzo | 10 kuya ku-20dBi | Ongakukhetha, kufika ku-50dBi |
| Amazinga e-Side Lobe | 10 kuya ku-20dB | Okuphansi, kuncike ohlotsheni lwe-antenna |
| Ububanzi bomkhawulo | Ububanzi obubanzi ngaphakathi komkhawulokudonsa wokusebenza | Kuzinzile kakhulu eqenjini eliphelele |
| Ukuhlukaniswa kwe-cross polarization | 30dB Okuvamile | Okuphezulu, 40dB Okuvamile |
| Ukuhlukaniswa kwechweba eliya kwelinye ichweba | 30dB Okuvamile | Okuphezulu, 40dB Okuvamile |
| Uhlobo lwembobo | I-Coaxial | I-Coaxial noma i-waveguide |
| Amandla | Phansi | Phezulu |
I-antenna ye-quad-ridge dual-polarized horn ifanelekela izinhlelo zokusebenza lapho ububanzi bokulinganisa buhlanganisa ama-frequency band amaningi e-waveguide, futhi inezinzuzo ze-ultra-wideband kanye nokuhlolwa okusheshayo. Kuma-antenna a-dual-polarized asekelwe ku-WOMT, ungakhetha izinhlobo ezahlukene ze-antenna, njenge-conical horn, i-pyramid horn, i-open ended waveguide probe, i-lens horn, i-scalar horn, i-corrugated horn, i-corrugated feed horn, i-Gaussian antenna, i-dish antenna, njll. Kungatholakala izinhlobo ezahlukene ze-antenna ezifanele noma yiluphi uhlelo lokusebenza lwesistimu.I-RF MISOingahlinzeka ngemoduli yokuguqula i-waveguide eyindilinga kuya kwengunxande ukuze kusungulwe ukuxhumana okuqondile phakathi kwe-antenna ene-interface ejwayelekile ye-waveguide eyindilinga kanye ne-WOMT ene-interface ye-waveguide yesikwele. Ama-antenna e-WOMT asekelwe ku-dual-polarization horn aquketheI-RF MISOokungatholakala kukhonjisiwe kuThebula 2.
Ithebula 2 I-antenna ene-polarized ephindwe kabili esekelwe ku-WOMT
| Izinhlobo ze-antenna ezihlukaniswe kabili | Izici | Izibonelo |
| I-WOMT+Uphondo Olujwayelekile | •Ukunikeza i-bandwidth ephelele ye-waveguide ejwayelekile kanye ne-bandwidth ye-Extended Frequency WG •Imvamisa imboza kufika ku-220 GHz •Ama-lobes aphansi aseceleni •Amanani okuthola inzuzo ongawakhetha angu-10, 15, 20, 25 dBi |
|
| Uphondo Lokuphakelayo lwe-WOMT+Corrugated | •Ukunikeza i-bandwidth ephelele ye-waveguide ejwayelekile kanye ne-bandwidth ye-Extended Frequency WG •Imvamisa imboza kufika ku-220 GHz •Ama-lobes aphansi aseceleni •Ukuhlukaniswa okuphansi kwe-cross polarization • Thola amanani angu-10 dBi |  |
Ukuze ufunde kabanzi ngama-antenna, sicela uvakashele:
Isikhathi sokuthunyelwe: Septhemba 13-2024
