Isakhiwo se-ai-antenna encanengokuvamile iqukethe i-dielectric substrate, i-radiator kanye ne-ground plate.Ubukhulu be-dielectric substrate buncane kakhulu kunobude be-wavelength.Ungqimba oluncane lwensimbi olungaphansi kwe-substrate luxhunywe ku-ground plate.Ngaphambili, ungqimba oluncane lwensimbi olunomumo othize lwenziwa ngenqubo ye-photolithography njenge-radiator.Ukuma kwepuleti ekhanyayo kungashintshwa ngezindlela eziningi ngokuya ngezidingo.
Ukukhuphuka kobuchwepheshe bokuhlanganisa ama-microwave kanye nezinqubo ezintsha zokukhiqiza kukhuthaze ukuthuthukiswa kwama-microstrip antenna.Uma kuqhathaniswa nezimpondo zendabuko, ama-antenna e-microstrip awawona nje amancane ngosayizi, alula ngesisindo, aphansi ngephrofayili, kulula ukuwahlanganisa, kulula ukuwahlanganisa, aphansi ngezindleko, futhi afanele ukukhiqizwa ngobuningi, kodwa futhi anezinzuzo zezakhiwo zikagesi ezihlukene.
Izindlela ezine eziyisisekelo zokuphakela zezimpondo ze-microstrip zimi kanje:
1. (I-Microstrip Feed): Lena enye yezindlela ezivame kakhulu zokuphakela izimpondo ezincane.Isiginali ye-RF idluliselwa engxenyeni ekhazimulayo yothi ngomugqa we-microstrip, ngokuvamile ngokuhlangana phakathi komugqa we-microstrip nesichibi esikhipha imisebe.Le ndlela ilula futhi ivumelana nezimo futhi ifanele ukuklanywa kwama-antenna amaningi ama-microstrip.
2. (Okuphakelayo kwe-Aperture-coupled): Le ndlela isebenzisa izimbobo noma izimbobo ku-microstrip antenna base plate ukuze ifake umugqa we-microstrip engxenyeni ekhiphayo yothi.Le ndlela inganikeza ukufanisa okungcono kwe-impedance nokusebenza kahle kwemisebe, futhi inganciphisa nobubanzi be-beam obuvundlile nobume bama-lobe aseceleni.
3. (I-Proximity Coupled Feed): Le ndlela isebenzisa i-oscillator noma into engenisayo eduze komugqa we-microstrip ukuze ifake isignali othini.Inganikeza ukufanisa okuphezulu kwe-impedance kanye nebhendi yefrikhwensi ebanzi, futhi ifanele ukwakheka kwezimpondo ezibanzi.
4. (I-Coaxial Feed): Le ndlela isebenzisa izintambo ze-coplanar noma amakhebuli angama-coaxial ukuphakela amasignali e-RF engxenyeni ekhiphayo yothi.Le ndlela ivamise ukuhlinzeka ngokulinganisa okuhle kwe-impedance nokusebenza kahle kwemisebe, futhi ifaneleka ikakhulukazi ezimeni lapho kudingeka khona isixhumi esibonakalayo sothi olulodwa.
Izindlela zokuphakela ezihlukene zizothinta ukumedaniswa kwe-impedance, izici zemvamisa, ukusebenza kahle kwemisebe kanye nokwakheka komzimba kothi.
Ungalikhetha kanjani iphuzu le-coaxial feed ye-microstrip antenna
Lapho uklama i-antenna encane, ukukhetha indawo yephoyinti le-coaxial feed kubalulekile ukuze kuqinisekiswe ukusebenza kwe-antenna.Nazi ezinye izindlela eziphakanyisiwe zokukhetha amaphuzu okuphakelayo kwe-coaxial kuma-microstrip antenna:
1. I-Symmetry: Zama ukukhetha iphoyinti lokuphakelayo kwe-coaxial maphakathi ne-microstrip antenna ukuze ulondoloze ukulingana kwe-antenna.Lokhu kusiza ekuthuthukiseni ukusebenza kahle kwemisebe ye-antenna kanye nokumadanisa kokuphazamiseka.
2. Lapho indawo kagesi inkulu kakhulu: Iphoyinti lokuphakelayo kwe-coaxial likhethwa kangcono endaweni lapho inkambu kagesi ye-antenna ye-microstrip inkulu kakhulu, engathuthukisa ukusebenza kahle kokuphakelayo futhi yehlise nokulahlekelwa.
3. Lapho inani lamanje liphezulu kakhulu: Iphoyinti lesiphakeli se-coaxial lingakhethwa eduze nendawo lapho i-current ye-microstrip antenna iphezulu kakhulu ukuze kutholwe amandla emisebe aphezulu nokusebenza kahle.
4. Iphoyinti lenkundla kagesi elinguziro ngemodi eyodwa: Ekwakhiweni kwe-antenna ye-microstrip, uma ufuna ukuzuza emisebeni yemodi eyodwa, iphoyinti lokuphakelayo kwe-coaxial livamise ukukhethwa endaweni kagesi eyiziro ngemodi eyodwa ukuze uzuze ukufanisa okungcono kwe-impedance nemisebe.isici.
5. Ukuhlaziya imvamisa nokwakheka kwamagagasi: Sebenzisa amathuluzi okulingisa ukuze wenze ukushanela imvamisa kanye nenkambu kagesi/ukuhlaziywa kokusabalalisa kwamanje ukuze unqume indawo efanelekile yephoyinti lokuphakelayo kwe-coaxial.
6. Cabangela isiqondiso se-beam: Uma izici zemisebe ezinokuqondisa okuqondile zidingeka, indawo yephoyinti lokuphakela kwe-coaxial ingakhethwa ngokuya ngokuqondiswa kwe-beam ukuze kutholwe ukusebenza kwemisebe ye-antenna oyifunayo.
Enqubweni yangempela yokuklama, ngokuvamile kuyadingeka ukuhlanganisa izindlela ezingenhla futhi kunqunywe indawo yephoyinti lokuphakelayo kwe-coaxial elilungile ngokuhlaziywa kokulingisa kanye nemiphumela yangempela yokulinganisa ukuze kuzuzwe izidingo zokuklama nezinkomba zokusebenza ze-antenna encane.Ngasikhathi sinye, izinhlobo ezahlukahlukene zama-microstrip antenna (njengama-patch antenna, ama-helical antenna, njll.) zingase zibe nokucatshangelwa okuthile lapho kukhethwa indawo yephoyinti lokuphakela i-coaxial, okudinga ukuhlaziywa okuqondile kanye nokwenza kahle okusekelwe ohlotsheni oluthile lwe-antenna kanye isimo sohlelo lokusebenza..
Umehluko phakathi kwe-microstrip antenna kanye ne-patch antenna
I-Microstrip antenna kanye ne-patch antenna yizimpondo ezimbili ezivamile.Banomehluko nezici ezithile:
1. Isakhiwo nesakhiwo:
- I-microstrip antenna ivamise ukuba ne-microstrip patch kanye ne-ground plate.I-microstrip patch isebenza njengento ekhanyayo futhi ixhunywe ku-ground plate ngomugqa we-microstrip.
- Amapheshi wezimpondo ngokuvamile ama-conductor ama-patches aqoshwa ngokuqondile ku-dielectric substrate futhi awadingi imigqa ye-microstrip efana nezimpondo ze-microstrip.
2. Usayizi nokuma:
- Ama-antenna ama-Microstrip mancane ngosayizi, avame ukusetshenziswa kumabhendi efrikhwensi ye-microwave, futhi anomklamo ovumelana nezimo.
- I-patch antenna nayo ingaklanywa ukuthi yenziwe i-miniaturized, futhi kwezinye izimo, ubukhulu bayo bungaba buncane.
3. Ibanga lemvamisa:
- Ibanga lokuvama kwama-antenna ama-microstrip lingasukela kumakhulu ama-megahertz kuye kumagigahertz amaningana, anezici ezithile ze-broadband.
- Ama-antenna okuchibiyela ngokuvamile asebenza kangcono kumabhendi athile efrikhwensi futhi ngokuvamile asetshenziswa ezinhlelweni ezithile zefrikhwensi.
4. Inqubo yokukhiqiza:
- Ama-antenna e-Microstrip ngokuvamile enziwa kusetshenziswa ubuchwepheshe bebhodi lesifunda eliphrintiwe, elingakhiqizwa ngobuningi futhi libe nezindleko eziphansi.
- Ama-antenna ama-patch ngokuvamile enziwa ngezinto ezisekelwe ku-silicon noma ezinye izinto ezikhethekile, anezidingo ezithile zokucubungula, futhi afanele ukukhiqizwa kwenqwaba encane.
5. Izici ze-polarization:
- Ama-antenna e-Microstrip angadizayinelwa ukuhlukanisa phakathi komugqa noma i-polarization eyindilinga, okuwanika izinga elithile lokuguquguquka.
- Izici ze-polarization zama-patch antenna ngokuvamile zincike ekwakhekeni nasekuhlelekeni kothi futhi aziguquguquki njengama-microstrip antenna.
Ngokuvamile, ama-antenna ama-microstrip nama-patch antenna ahlukile ngesakhiwo, ububanzi bemvamisa, kanye nenqubo yokukhiqiza.Ukukhetha uhlobo olufanele lwe-antenna kudingeka kusekelwe ezidingweni ezithile zohlelo lokusebenza nokucatshangelwa komklamo.
Izincomo zomkhiqizo we-antenna ye-Microstrip:
I-RM-MPA1725-9 (1.7-2.5GHz)
I-RM-MPA2225-9 (2.2-2.5GHz)
RM-MA25527-22 (25.5-27GHz)
RM-MA424435-22(4.25-4.35GHz)
Isikhathi sokuthumela: Apr-19-2024
