Ubume be-ai-eriyali ye-microstripngokubanzi iquka i-dielectric substrate, iradiyetha kunye nepleyiti yomhlaba. Ubunzima be-dielectric substrate buncinci kakhulu kune-wavelength. Uluhlu lwetsimbi oluncinci oluphantsi kwe-substrate ludibaniswe kwi-plate yomhlaba. Kwicala langaphambili, umgca wetsimbi onqabileyo onomlo othile wenziwa ngenkqubo ye-photolithography njenge-radiator. Ubume bepleyiti ekhanyayo ingatshintshwa ngeendlela ezininzi ngokweemfuno.
Ukunyuka kobuchwepheshe bokudibanisa ii-microwave kunye neenkqubo ezintsha zokwenziwa kwemveliso kukhuthaze uphuhliso lwee-eriyali ze-microstrip. Xa kuthelekiswa ne-eriyali zendabuko, i-antennas ye-microstrip ayincinci kuphela ngobukhulu, ilula ngobunzima, iphantsi kwiprofayili, ilula ukuhambelana, kulula ukuyidibanisa, iphantsi kweendleko, kwaye ifanelekile kwimveliso yobuninzi, kodwa ineenzuzo zezinto ezahlukeneyo zombane.
Iindlela ezine ezisisiseko zokutyisa ze-eriyali ze-microstrip zezi zilandelayo:
1. (I-Microstrip Feed): Le yenye yezona ndlela zixhaphakileyo zokutyisa kwii-eriyali ze-microstrip. Isiginali ye-RF igqithiselwa kwindawo esasazekayo ye-eriyali ngomgca we-microstrip, ngesiqhelo ngokudibanisa phakathi komgca we-microstrip kunye nepetshi yokusasazeka. Le ndlela ilula kwaye iguquguquka kwaye ifanelekile ukuyila kwee-antenna ezininzi ze-microstrip.
2. (I-Aperture-coupled Feed): Le ndlela isebenzisa i-slots okanye imingxuma kwi-microstrip antenna base plate ukondla umgca we-microstrip kwi-radiation element ye-antenna. Le ndlela inokubonelela nge-impedance ehambelanayo kunye nokusebenza kakuhle kwemitha, kwaye inokunciphisa ububanzi obuthe tye kunye nobubanzi be-lobes esecaleni.
3. (I-Proximity Coupled Feed): Le ndlela isebenzisa i-oscillator okanye i-inductive element kufuphi nomgca we-microstrip ukondla umqondiso kwi-antenna. Inokubonelela ngokuhambelana okuphezulu kwe-impedance kunye nebhendi yefrikhwensi ebanzi, kwaye ifanelekile kuyilo lwee-eriyali ezibanzi.
4. (I-Coaxial Feed): Le ndlela isebenzisa iingcingo ze-coplanar okanye i-coaxial cables ukondla iimpawu ze-RF kwindawo ephumayo ye-eriyali. Le ndlela ihlala ibonelela ngokuhambelana kakuhle kwe-impedance kunye nokusebenza kakuhle kwemitha, kwaye ifanelekile ngakumbi kwiimeko apho kufuneka ujongano lwe-eriyali enye.
Iindlela ezahlukeneyo zokondla ziyakuchaphazela ukuthelekisana kwe-impedance, iimpawu zokuphindaphinda, ukusebenza kakuhle kwemitha kunye noyilo lomzimba lwe-eriyali.
Indlela yokukhetha indawo yokutya ye-coaxial ye-eriyali ye-microstrip
Xa uyila i-eriyali ye-microstrip, ukukhetha indawo ye-coaxial feed point kubalulekile ekuqinisekiseni ukusebenza kwe-eriyali. Nazi ezinye iindlela ezicetyiswayo zokukhetha amanqaku e-coaxial feed kwii-antenna ze-microstrip:
1. I-Symmetry: Zama ukukhetha i-coaxial feed point embindini we-eriyali ye-microstrip ukugcina i-symmetry ye-eriyali. Oku kunceda ekuphuculeni ukusebenza kakuhle kwemitha ye-eriyali kunye nokudibana kokuphazamiseka.
2. Apho indawo yombane inkulu kakhulu: Indawo yokutya ye-coaxial ikhethwa ngokufanelekileyo kwindawo apho intsimi yombane ye-antenna ye-microstrip iyona inkulu, enokuphucula ukusebenza kakuhle kokutya kunye nokunciphisa ilahleko.
3. Apho ubuninzi bangoku: Indawo yokutya i-coaxial inokukhethwa kufuphi nendawo apho i-eriyali ye-microstrip iphezulu ukufumana amandla aphezulu emitha kunye nokusebenza kakuhle.
4. Indawo yombane engu-Zero kwimowudi enye: Kuyilo lwe-antenna ye-microstrip, ukuba ufuna ukufezekisa imo yemitha ye-radiation enye, i-coaxial feed point idla ngokukhethwa kwindawo ye-zero yombane kwimowudi enye ukufezekisa ukuhambelana okungcono kwe-impedance kunye ne-radiation. uphawu.
5. Uhlalutyo lokuphindaphinda kunye ne-waveform: Sebenzisa izixhobo zokulinganisa ukwenza ukutshayela rhoqo kunye nentsimi yombane / uhlalutyo lwangoku lokusasazwa ukumisela indawo efanelekileyo ye-coaxial feed point.
6. Qwalasela isalathiso se-beam: Ukuba iimpawu ze-radiation ezine-directivity ethile ziyafuneka, indawo ye-coaxial feed point inokukhethwa ngokuhambelana ne-beam yokufumana ukusebenza kwe-eriyali efunekayo.
Kwinkqubo yoyilo lwangempela, ngokuqhelekileyo kuyimfuneko ukudibanisa iindlela ezingentla kwaye unqume indawo efanelekileyo ye-coaxial feed point ngokusebenzisa uhlalutyo lokulinganisa kunye neziphumo zangempela zokulinganisa ukufezekisa iimfuno zoyilo kunye nezalathisi zokusebenza ze-antenna ye-microstrip. Kwangaxeshanye, iintlobo ezahlukeneyo ze-eriyali ze-microstrip (ezifana ne-antenna yokupakisha, i-eriyali ye-helical, njl.njl.) zinokuba neengqwalasela ezithile xa ukhetha indawo ye-coaxial feed point, efuna uhlalutyo oluthile kunye nokuphucula ngokusekelwe kuhlobo oluthile lwe-antenna kunye isicelo imeko. .
Umahluko phakathi kwe-eriyali ye-microstrip kunye ne-eriyali yokupakisha
I-eriyali yeMicrostrip kunye ne-eriyali yokupakisha zii-eriyali ezincinci ezimbini eziqhelekileyo. Banomahluko othile kunye neempawu:
1. Ulwakhiwo kunye noyilo:
- I-eriyali ye-microstrip idla ngokuba ne-microstrip patch kunye ne-ground plate. I-patch ye-microstrip isebenza njengento ekhanyayo kwaye ixhunywe kwi-plate yomhlaba ngokusebenzisa umgca we-microstrip.
- Ii-eriyali zokupakisha zidla ngokuba ziindawo zokuqhuba ezikrolwa ngokuthe ngqo kwi-dielectric substrate kwaye azifuni migca emincinci njengee-eriyali ze-microstrip.
2. Ubungakanani kunye nokumila:
-Ii-eriyali zeMicrostrip zincinci ngokwesayizi, zihlala zisetyenziswa kwiibhendi ze-microwave frequency, kwaye zinoyilo olubhetyebhetye ngakumbi.
- Ii-eriyali zePatch zisenokwenziwa ukuba zenziwe zincinci, kwaye kwezinye iimeko ezithile, imilinganiselo yazo inokuba mincinci.
3. Uluhlu lokuphindaphinda:
- Uluhlu oluphindaphindiweyo lwee-eriyali ze-microstrip zinokusuka kumakhulu e-megahertz ukuya kwiigigahertz ezininzi, ezineempawu ezithile zebroadband.
-I-eriyali zokupakisha zihlala zisebenza ngcono kwiibhendi ezithile zamaza kwaye zisetyenziswa ngokubanzi kusetyenziso oluthile lwamaza.
4. Inkqubo yokuvelisa:
- Ii-antenna ze-Microstrip zidla ngokusetyenziswa iteknoloji yebhodi yesekethe eprintiweyo, enokuveliswa ngobuninzi kwaye ibe neendleko eziphantsi.
- I-antenna ze-Patch zivame ukwenziwa ngezinto ezisekelwe kwi-silicon okanye ezinye izinto ezikhethekileyo, zineemfuno ezithile zokucubungula, kwaye zifanelekile kwimveliso encinci ye-batch.
5. Iimpawu zepolarization:
- Ii-antenna ze-Microstrip zinokuthi zenzelwe i-polarization yomgca okanye i-polarization yesetyhula, ibanike iqondo elithile lokuguquguquka.
- Iimpawu ze-polarization ze-patch antennas zihlala zixhomekeke kwisakhiwo kunye nokwakheka kwe-eriyali kwaye aziguquki njengee-eriyali ze-microstrip.
Ngokubanzi, ii-eriyali ze-microstrip kunye ne-patch antenna zahlukile kwisakhiwo, uluhlu lwamaza, kunye nenkqubo yokuvelisa. Ukukhetha uhlobo olufanelekileyo lwe-eriyali kufuneka lusekelwe kwiimfuno ezithile zesicelo kunye nokuqwalaselwa koyilo.
Iingcebiso zemveliso ye-antenna yeMicrostrip:
RM-MPA1725-9(1.7-2.5GHz)
RM-MPA2225-9(2.2-2.5GHz)
RM-MA25527-22 (25.5-27GHz)
RM-MA424435-22(4.25-4.35GHz)
Ixesha lokuposa: Apr-19-2024
