Kwiminyaka yakutshanje, kunye nophuhliso olukhawulezayo lonxibelelwano olungenazintambo kunye neteknoloji ye-radar, ukwenzela ukuba kuphuculwe umgama wokuhanjiswa kwenkqubo, kuyimfuneko ukwandisa amandla okuhambisa inkqubo. Njengenxalenye yenkqubo ye-microwave iyonke, izihlanganisi zeRF coaxial kufuneka zikwazi ukumelana neemfuno zothumelo lwamandla aphezulu. Kwangaxeshanye, iinjineli zeRF nazo kufuneka ziqhube rhoqo uvavanyo lwamandla aphezulu kunye nemilinganiselo, kunye nezixhobo/izixhobo zemicrowave ezisetyenziselwa uvavanyo olwahlukeneyo kufuneka zikwazi ukumelana namandla aphezulu. Zeziphi izinto ezichaphazela amandla e-RF coaxial connectors? Makhe ndijonge
● Ubungakanani bomnxibelelanisi
Kwimiqondiso yeRF yefrikhwensi efanayo, izihlanganisi ezinkulu zinokunyamezela okukhulu kwamandla. Ngokomzekelo, ubungakanani bombhobho wokudibanisa unxulumene nomthamo wangoku wekhonkco, ohambelana ngqo namandla. Phakathi kweziqhagamshelo ezahlukeneyo zeRF coaxial ezisetyenziswa ngokuqhelekileyo, i-7/16 (DIN), 4.3-10, kunye nezihlanganisi zodidi lwe-N zinkulu ngokobungakanani, kwaye ubungakanani bepinhole obuhambelanayo nabo bukhulu. Ngokuqhelekileyo, ukunyamezela kwamandla e-N-type connectors malunga ne-SMA 3-4 amaxesha. Ukongeza, izihlanganisi zohlobo lwe-N zisetyenziswa ngokuqhelekileyo, yiyo loo nto uninzi lwamacandelo anjenge-attenuators kunye nemithwalo engaphezulu kwe-200W zizidibanisi zohlobo lwe-N.
● Amaxesha okusebenza
Ukunyamezela kwamandla e-RF coaxial connectors kuya kuncipha njengoko isantya somqondiso sinyuka. Utshintsho kwi-frequency yesignali yothumelo lukhokelela ngokuthe ngqo kutshintsho kwilahleko kunye nomlinganiselo wamaza ombane, oko kuchaphazela amandla othumelo kunye nesiphumo solusu. Umzekelo, isinxibelelanisi se-SMA ngokubanzi sinokumelana malunga ne-500W yamandla kwi-2GHz, kwaye amandla aphakathi anokumelana ngaphantsi kwe-100W kwi-18GHz.
●Umlinganiselo wamaza ombane omileyo
Isidibanisi seRF sichaza ubude bombane obuthile ngexesha loyilo. Kumgca wobude obulinganiselweyo, xa i-impedance yeempawu kunye ne-impedance yomthwalo ingalingani, inxalenye ye-voltage kunye nekhoyo ukusuka ekupheleni komthwalo ibonakaliswe ngasemva kwicala lamandla, elibizwa ngokuba yi-wave. Amaza abonakalisiweyo; I-voltage kunye neyangoku ukusuka kumthombo ukuya kumthwalo kuthiwa ngamaza esiganeko. I-wave yesiphumo ye-wave yesiganeko kunye ne-wave wave ebizwa ngokuba yi-standing wave. Umlinganiselo wexabiso lombane ophezulu kunye nexabiso elincinci le-wave wave libizwa ngokuba yi-voltage stand wave ratio (inokuba yi-coefficient yamaza omileyo). Amaza abonakalisiweyo athatha indawo yomthamo wetshaneli, ebangela ukuba umthamo wamandla othumelo ucuthwe.
●Ilahleko yokufaka
Ilahleko yokufaka (IL) ibhekisa ekulahlekelweni kwamandla emgceni ngenxa yokwaziswa kweziqhagamshelo zeRF. Ichazwa njengomlinganiselo wamandla emveliso ukuya kumandla ongeniso. Kukho izinto ezininzi ezandisa ilahleko yokufaka isiqhagamshelo, ikakhulu ezibangelwa: ukungahambelani kokuphazamiseka kophawu, impazamo yokuchaneka kwendibano, umsantsa wokudibana kobuso, i-axis tilt, i-lateral offset, i-eccentricity, ukuchaneka kokucubungula kunye ne-electroplating, njl. Ngenxa yobukho belahleko, kukho umahluko phakathi kwegalelo kunye namandla emveliso, okuya kuchaphazela nokumelana nombane.
●Uxinzelelo lomoya ophakamileyo
Utshintsho kuxinzelelo lomoya lubangela utshintsho kwi-dielectric constant of the air segment, kwaye kuxinzelelo oluphantsi, umoya lula i-ionized ukuvelisa i-corona. Ukuphakama komphakamo, kokukhona kusezantsi uxinzelelo lomoya kunye nokuncinci umthamo wamandla.
●Ukuchasana noqhagamshelwano
Ukuxhathisa uqhagamshelwano lwesidibanisi se-RF kubhekiselele ekuxhathiseni iindawo zoqhagamshelwano ze-conductor zangaphakathi nangaphandle xa isidibanisi sidibene. Ngokuqhelekileyo kwinqanaba le-miliohm, kwaye ixabiso kufuneka libe lincinci kangangoko. Ikakhulu ivavanya iipropathi zomatshini zabafowunelwa, kunye neziphumo zokuchasana nomzimba kunye nokumelana nokudityaniswa kwe-solder kufuneka kususwe ngexesha lokulinganisa. Ubukho bokumelana noqhagamshelwano kuya kubangela ukuba abafowunelwa bafudumale, kube nzima ukuhambisa imiqondiso emikhulu yamandla e-microwave.
●Izinto ezidibeneyo
Uhlobo olufanayo lokudibanisa, usebenzisa izinto ezahlukeneyo, luya kuba nokunyamezela kwamandla okuhlukeneyo.
Ngokubanzi, ngenxa yamandla e-antenna, qwalasela amandla ngokwawo kunye namandla okudibanisa. Ukuba kukho imfuneko yamandla aphezulu, unakoyenza ngokwezifisoikhonkco yensimbi engenasici, kunye ne-400W-500W ayikho ingxaki.
E-mail:info@rf-miso.com
Ifowuni: 0086-028-82695327
iwebhusayithi: www.rf-miso.com
Ixesha lokuposa: Oct-12-2023
