Qonda imisebenzi kunye neemeko zokusetyenziswa kwe-waveguide probes

Imbali

I-antenna ye-broadband horn yi-eriyali esetyenziselwa ukuhanjiswa kwamaza ombane, kwaye imbali yayo inokulandwa ukusukela kwiminyaka yoo-1930s. I-eriyali ye-broadband horn yaqala ukuyilwa sisazi ngeenkwenkwezi saseMelika uKarl Guthe Jansky ngo-1932. Wasebenzisa i-eriyali “yephondo” eyilelwe ngokukodwa ukwamkela nokulinganisa amaza erediyo kwindalo iphela. Uyilo lwe-eriyali yephondo le-broadband iphefumlelwe sisigodlo sesandi kwaye imile njengexilongo ukwandisa umqondiso ofunyenwe yi-eriyali. Kumashumi ambalwa eminyaka alandelayo, ii-eriyali ze-broadband horn zaqhubeka ziphuculwa kwaye zaphuhliswa, zaba lunxibelelwano olubalulekileyo olungenazingcingo kunye nesixhobo sokujonga ngeenkwenkwezi. Namhlanje, ii-antenna ze-broadband horn zisetyenziswa ngokubanzi kunxibelelwano olungenazingcingo, iinkqubo ze-radar, imilinganiselo yokuphazamiseka kwerediyo, ii-oveni ze-microwave kunye nezinye iindawo, kwaye uyilo kunye nokusebenza kwazo kuye kwaphuculwa ngokuqhubekayo kwaye kwaphuculwa. Imbali yee-antenna ze-broadband horn inokuthiwa yinxalenye ebalulekileyo yembali yophuhliso lonxibelelwano olungenazingcingo kunye nokuqwalaselwa kweenkwenkwezi.

Ulwakhiwo kunye noMgaqo:

Eyona nto iphambili ye-antenna yophondo lwe-broadband yisakhiwo sayo esifana nophondo. Ngokuqhelekileyo iquka isakhiwo sesikhokelo esibume sophondo olukhulayo ngokuthe ngcembe, apho i-caliber yephondo ikhula ngokuthe ngcembe. Ubude kunye nokumila kwesakhiwo sesikhokelo kuxhomekeke kwibhendi yefrikhwensi efunwayo kunye neemfuno zokusebenza.

Umgaqo wokusebenza we-antenna ye-broadband horn isekelwe kwimilo yephondo ekhulisa ngokuthe ngcembe kwisakhiwo sesikhokelo. Njengoko umqondiso udlula kwi-antenna yesigodlo, isakhiwo sesikhokelo ngokuthe ngcembe sandisa umqondiso ukusuka kwiindawo ezincinci ukuya kwiindawo ezinkulu. Oku kwandiswa kwenza ukuba i-eriyali yophondo ikwazi ukugqama ngokufanelekileyo kwaye ifumane imiqondiso kwibhendi ebanzi yamaza kuba imiqondiso yeefrikhwensi ezahlukeneyo inokusasazwa kwaye yamkelwe kumacandelo ahlukeneyo eempondo.

Iimpawu kunye nezicelo:

1. Iimpawu zeBroadband: Uyilo lwe-eriyali yophondo olubanzi luyenza ikwazi ukusebenza ngaphakathi kwebhendi ebanzi. Inokugubungela iibhendi zamaza amaninzi, ukusuka kumakhulu emegahertz ukuya kwiigigahertz ezininzi okanye ngaphezulu. Oku kwenza ukuba ii-eriyali zephondo elibanzi zilungele usetyenziso olufuna ukusetyenzwa kwemiqondiso ebanzi, njengonxibelelwano, irada kunye nemilinganiselo yeRF.

2. Iimpawu zemitha ethe tye: I-eriyali yophondo lweBroadband ineempawu zemitha ethe tyaba, oko kukuthi, inepateni yemitha efanayo phakathi koluhlu olubanzi. Oku kuthetha ukuba inokukhanya kwaye ifumane imiqondiso ngokufanelekileyo kuluhlu olubanzi lwezalathiso ngaphandle kokuphazamiseka okubalulekileyo.

3. Imitha yemitha yecala eliphantsi: I-eriyali ye-Broadband horn idla ngokuba nemitha ye-side-lobe ephantsi, oko kukuthi, akukho mitha eyongezelelweyo icacileyo ngaphandle kweyona ndawo iphambili. Oku kwenza kube luncedo kwizicelo apho iimpawu eziphazamisayo kufuneka zincitshiswe okanye zipheliswe.

4. Ukunyamezela amandla aphezulu: Ii-eriyali zephondo le-Broadband zihlala zikwazi ukunyamezela amandla aphezulu. Ukukwazi kwabo ukuphatha iimpawu eziphezulu zamandla kubenza bafaneleke kwizicelo eziphezulu ezifana ne-radar kunye neenkqubo zonxibelelwano.

5. Ilula kwaye inokwethenjelwa: Ulwakhiwo lwe-eriyali yophondo olubanzi lulula kwaye kulula ukulwenza nokulufaka. Ngokuqhelekileyo zenziwe ngezinto zetsimbi, ezifana ne-aluminium okanye ubhedu, ukwenzela ukuhlala kunye nokuthembeka.

Shwankathela:

I-eriyali yophondo olubanzi yi-eriyali enokuthi isebenze ngaphakathi kwebhendi ebanzi. Ineempawu zebhendi ebanzi, iimpawu zemitha ethe tyaba, imitha yemitha yecala eliphantsi, amandla aphezulu okuphatha, kwaye ilula kwaye ithembekile. I-eriyali zophondo lwe-Broadband zisetyenziswa ngokubanzi kunxibelelwano, irada, umlinganiselo werediyo yerediyo kunye nophando lwezenzululwazi kunye neminye imimandla yokukhanya kunye nokufumana imiqondiso yebroadband.