I-antenna yophondo ingenye yama-antenna asetshenziswa kabanzi anesakhiwo esilula, ububanzi bemvamisa ebanzi, amandla amakhulu kanye nokuzuza okuphezulu.Ama-antenna empondozivame ukusetshenziswa njenge-antenna yokuphakelayo ku-radio astronomy enkulu, ukulandelela ngesathelayithi, kanye ne-antenna yokuxhumana. Ngaphezu kokusebenza njenge-feed yezibonisi namalensi, kuyinto evamile kuma-array ahlukaniswe ngezigaba futhi isebenza njengendinganiso evamile yokulinganisa nokulinganisa inzuzo kwamanye ama-antenna.
I-antenna yophondo yakhiwa ngokuvula kancane kancane i-waveguide engunxande noma i-waveguide eyindilinga ngendlela ethile. Ngenxa yokwanda kancane kancane kobuso bomlomo we-waveguide, ukufana phakathi kwe-waveguide nendawo ekhululekile kuyathuthukiswa, okwenza i-coefficient yokubonisa ibe ncane. Ku-waveguide engunxande ephekiwe, ukudluliselwa kwemodi eyodwa kufanele kufezwe ngangokunokwenzeka, okungukuthi, amagagasi e-TE10 kuphela adluliselwayo. Lokhu akugcini nje ngokugxila amandla esignali futhi kunciphisa ukulahleka, kodwa futhi kugwema umthelela wokuphazamiseka phakathi kwemodi kanye nokusabalala okwengeziwe okubangelwa izindlela eziningi.
Ngokwezindlela ezahlukene zokusabalalisa ama-antenna empondo, angahlukaniswa ngezigabaama-antenna ophondo lomkhakha, ama-antenna e-pyramid horn,ama-antenna empondo ekhonjisiwe, ama-antenna empondo egobile, ama-antenna empondo ezigobile, ama-antenna empondo yemodi eminingi, njll. Lawa ma-antenna avamile empondo achazwe ngezansi. Isingeniso ngasinye ngasinye
I-antenna yophondo lwemboni
I-antenna yophondo lomkhakha we-e-plane
I-antenna yophondo lwe-E-plane sector yenziwe nge-waveguide engunxande evulwe nge-engeli ethile ngasensimini kagesi.
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna yophondo lomkhakha we-E-plane. Kungabonakala ukuthi ububanzi bomsebe waleli phethini ohlangothini lwe-E-plane buncane kunehlangothini lwe-H-plane, okubangelwa ukuvuleka okukhulu kwe-E-plane.
I-antenna yophondo lomkhakha we-H-plane
I-antenna yophondo lwe-H-plane sector yenziwe nge-waveguide engunxande evulwe nge-engeli ethile ngasenkabeni yamagnetic.
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna yophondo lwe-H-plane sector. Kungabonakala ukuthi ububanzi bomsebe waleli phethini ohlangothini lwe-H-plane buncane kunehlangothini lwe-E-plane, okubangelwa ukuvuleka okukhulu kwe-H-plane.
Imikhiqizo ye-antenna yophondo lomkhakha we-RFMISO:
RM-I-SWHA187-10
RM-I-SWHA28-10
I-Antenna Yesiphondo Sephiramidi
I-antenna yophondo lwephiramidi yenziwe ngomhlahlandlela wamaza ongunxande ovulwa nge-engela ethile ngezindlela ezimbili ngesikhathi esisodwa.
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna ye-pyramidal horn. Izici zayo zokukhanya ziyinhlanganisela yezimpondo ze-E-plane neze-H-plane.
I-antenna yophondo oluyindilinga
Uma ingxenye evulekile ye-waveguide eyindilinga imise okwempondo, ibizwa ngokuthi i-antenna ye-cone horn. I-antenna ye-cone horn ine-aperture eyindilinga noma eyi-elliptical ngaphezu kwayo.
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna yophondo oluyindilinga.
Imikhiqizo ye-antenna yophondo oluyindilinga lwe-RFMISO:
RM-I-CDPHA218-15
I-RM-CDPHA618-17
I-antenna yophondo oluhlanganisiwe
I-antenna ye-corrugated horn iyi-antenna ye-horn enobuso bangaphakathi obu-corrugated. Inezinzuzo ze-wide frequency band, i-cross-polarization ephansi, kanye nokusebenza kahle kokulinganisa imisebe, kodwa isakhiwo sayo siyinkimbinkimbi, futhi ubunzima bokucubungula kanye nezindleko ziphakeme.
Ama-antenna empondo ane-corrugated angahlukaniswa ngezinhlobo ezimbili: ama-antenna empondo ane-corrugated pyramidal kanye nama-antenna empondo ane-corrugated corrugated.
Imikhiqizo ye-antenna ye-RFMISO eboshwe ngophondo:
RM-CHA140220-22
I-antenna yophondo olugobile oluyi-pyramidal
I-antenna yophondo oluyindilinga olugobile
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna yophondo oluyindilinga oluyindilinga.
I-antenna yophondo olugobile
Uma imvamisa yokusebenza kwe-antenna evamile ye-horn ingaphezu kuka-15 GHz, i-lobe yangemuva iqala ukuhlukana futhi izinga le-lobe eseceleni liyakhuphuka. Ukwengeza isakhiwo se-ridge emgodini wesipika kungandisa i-bandwidth, kunciphise i-impedance, kwandise inzuzo, futhi kuthuthukise ukuqondiswa kwemisebe.
Ama-antenna e-Ridged horn ahlukaniswe kakhulu ngama-antenna e-double-ridged horn kanye nama-antenna e-four-ridged horn. Okulandelayo kusebenzisa i-antenna e-pyramidal double-ridged horn evame kakhulu njengesibonelo sokulingisa.
I-Antenna Ye-Piramidi Ephindwe Kabili Ye-Ridge Horn
Ukwengeza izakhiwo ezimbili zomphetho phakathi kwengxenye yomhlahlandlela wamagagasi kanye nengxenye yokuvula uphondo yi-antenna yophondo oluphindwe kabili. Ingxenye yomhlahlandlela wamagagasi ihlukaniswe yaba umgodi wangemuva kanye nomhlahlandlela wamagagasi wamagagasi. Umgodi wangemuva ungahlunga izindlela eziphezulu ezivuselelwe kumhlahlandlela wamagagasi. Umhlahlandlela wamagagasi wamagagasi wamagagasi unciphisa imvamisa yokusika yokudluliselwa kwemodi eyinhloko, ngaleyo ndlela kufezwe injongo yokwandisa ibhendi yamagagasi.
I-antenna yophondo olunezinsika incane kune-antenna yophondo olujwayelekile ebhendini elifanayo lemvamisa futhi inenzuzo ephezulu kune-antenna yophondo olujwayelekile ebhendini elifanayo lemvamisa.
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna yophondo oluphindwe kabili oluyi-pyramidal.
I-antenna yophondo lwemodi eningi
Ezinhlelweni eziningi, ama-antenna e-horn ayadingeka ukuhlinzeka ngamaphethini alinganayo kuzo zonke izindiza, ukuhlangana kwesigaba sendawo ezindizeni ze-$E$ kanye ne-$H$, kanye nokucindezelwa kwe-side lobe.
Isakhiwo se-multi-mode excitation horn singathuthukisa umphumela wokulinganisa umsebe wendiza ngayinye futhi sinciphise izinga le-side lobe. Enye yama-antenna e-multi-mode horn avame kakhulu yi-antenna ye-dual-mode conical horn.
I-Antenna Yesimpondo Esiyindilinga Esikabili
Uphondo lwekhoni olunemodi ekabili luthuthukisa iphethini yendiza ye-$E$ ngokwethula imodi yemodi ye-TM11 ye-oda eliphezulu, ukuze iphethini yalo ibe nezici zomsebe olinganayo olinganayo. Isithombe esingezansi siwumdwebo weskimu wokusatshalaliswa kwensimu kagesi ye-aperture yemodi ye-TE11 yemodi eyinhloko kanye nemodi ye-TM11 ye-oda eliphezulu ku-waveguide eyindilinga kanye nokusatshalaliswa kwayo kwensimu ye-aperture okwenziwe.
Indlela yokwakheka kophondo oluyindilinga olunezindlela ezimbili ayihlukile. Izindlela ezivamile zokusebenzisa zifaka phakathi uphondo lwePotter kanye nophondo lwePickett-Potter.
Isithombe esingezansi sibonisa imiphumela yokulingisa ye-antenna ye-Potter enophondo oluyindilinga olunemodi ekabili.
Isikhathi sokuthunyelwe: Mashi-01-2024
