I-coaxial switch sisixhobo sokwenziwa kwe-electromechanical relay esetyenziselwa ukutshintsha imiqondiso yeRF ukusuka kwelinye ijelo ukuya kwelinye.Olu tshintsho lusetyenziswa kakhulu kwiimeko zokuhambisa umqondiso ezifuna amaza omoya aphezulu, amandla aphezulu kunye nokusebenza okuphezulu kweRF.Ikwasetyenziswa rhoqo kwiinkqubo zovavanyo lweRF, ezinje ngee-eriyali, unxibelelwano ngesathelayithi, unxibelelwano, izikhululo ezisisiseko, ii-avionics, okanye ezinye iinkqubo ezifuna ukutshintsha imiqondiso yeRF ukusuka kwelinye icala ukuya kwelinye.
Tshintsha izibuko
Xa sithetha malunga nokutshintsha kwe-coaxial, sihlala sisithi nPmT, oko kukuthi, i-n pole m yokuphosa, apho u-n linani lokufaka amazibuko kwaye m linani leezibuko eziphumayo.Umzekelo, iswitshi yeRF enezibuko elinye lokungenisa kunye namazibuko amabini aphumayo abizwa ngokuba yiSPDT/1P2T.Ukuba iswitshi yeRF inegalelo elinye kunye neziphumo ezili-14, kufuneka sikhethe iswitshi yeRF yeSP14T.
Tshintsha iiparamitha kunye neempawu
Ukuba isignali ifuna ukutshintshwa phakathi kweziphelo ze-eriyali ezimbini, sinokwazi ngoko nangoko ukukhetha iSPDT.Nangona umda wokukhetha ucuthelwe kwi-SPDT, kusafuneka sijongane neeparamitha ezininzi eziqhelekileyo ezibonelelwa ngabavelisi.Kufuneka sifunde ngokucophelela ezi parameters kunye neempawu, ezifana ne-VSWR, i-Ins.Loss, i-isolation, i-frequency, uhlobo lwe-connector, umthamo wamandla, i-voltage, uhlobo lokuphunyezwa, i-terminal, isalathisi, isiphaluka solawulo kunye nezinye iiparamitha ezikhethiweyo.
Ukuphindaphinda kunye nodidi lwesihlanganisi
Sidinga ukumisela uluhlu lwamafrikhwensi enkqubo kwaye sikhethe i-coaxial switch efanelekileyo ngokwe-frequency.Ubuninzi bokusebenza kokutshintsha kwe-coaxial kunokufikelela kwi-67GHz, kwaye uchungechunge oluhlukeneyo lokutshintsha kwe-coaxial kuneendlela ezahlukeneyo zokusebenza.Ngokuqhelekileyo, sinokugweba i-frequency yokusebenza yokutshintsha kwe-coaxial ngokohlobo lwesidibanisi, okanye uhlobo lokudibanisa lumisela uluhlu lwamaza okutshintsha kwe-coaxial.
Kwimeko yesicelo se-40GHz, kufuneka sikhethe isinxibelelanisi se-2.92mm.Izihlanganisi ze-SMA zisetyenziswa kakhulu kuluhlu lwamaza phakathi kwe-26.5GHz.Ezinye izihlanganisi ezisetyenziswa ngokuqhelekileyo, ezifana ne-N-head kunye ne-TNC, zinokusebenza kwi-12.4GHz.Ekugqibeleni, isidibanisi se-BNC sinokusebenza kuphela kwi-4GHz.
DC-6/8/12.4/18/26.5 GHz: Isidibanisi se-SMA
DC-40/43.5 GHz: 2.92mm isidibanisi
DC-50/53/67 GHz: 1.85mm isidibanisi
Umthamo wamandla
Kwisicelo sethu kunye nokukhethwa kwesixhobo, umthamo wamandla udla ngokuba yipharamitha ephambili.Ubungakanani bamandla okutshintsha okunokumelana ngokuqhelekileyo kumiselwa yinkqubo yoyilo lomatshini, izinto ezisetyenzisiweyo, kunye nohlobo lwesihlanganisi.Ezinye izinto zikwanciphisa amandla okutshintsha, okufana nokuphindaphinda, ubushushu bokusebenza kunye nokuphakama.
I-Voltage
Sele sisazi uninzi lweeparamitha eziphambili ze-coaxial switch, kwaye ukukhethwa kwezi parameters zilandelayo kuxhomekeke ngokupheleleyo kukhetho lomsebenzisi.
Ukutshintsha kwe-coaxial kubandakanya ikhoyili ye-electromagnetic kunye nemagnethi, efuna amandla ombane we-DC ukuqhuba iswitshi kwindlela yeRF ehambelana nayo.Iindidi zombane ezisetyenziselwa uthelekiso lwe-coaxial switch zezi zilandelayo:
Uluhlu lwe-coil voltage
5VDC 4-6VDC
12VDC 13-17VDC
24VDC 20-28VDC
28VDC 24-32VDC
Uhlobo Lokuqhuba
Kutshintsho, umqhubi sisixhobo sombane esitshintsha iindawo zoqhagamshelwano zeRF ukusuka kwenye indawo ukuya kwenye.Kuninzi lokutshintsha kweRF, ivalve yesolenoid isetyenziselwa ukusebenza kuqhagamshelo lomatshini kuqhagamshelwano lweRF.Xa sikhetha iswitshi, sidla ngokujongana neentlobo ezine ezahlukeneyo zokuqhuba.
Failsafe
Xa kungekho mbane wolawulo lwangaphandle usetyenziswayo, itshaneli enye ihlala ivuliwe.Yongeza unikezelo lwamandla lwangaphandle kwaye utshintshe ukukhetha itshaneli ehambelanayo;Xa i-voltage yangaphandle ilahleka, umtshintshi uya kutshintshela ngokuzenzekelayo kwisitishi esiqhelekileyo sokuqhuba.Ngoko ke, kuyimfuneko ukubonelela unikezelo lwamandla oluqhubekayo lwe-DC ukugcina iswitshi itshintshelwe kwamanye amazibuko.
Ukuqhobosha
Ukuba i-latching switch idinga ukugcina imo yayo yokutshintsha, kufuneka iqhubeke ngokufaka i-current de i-pulse i-voltage ye-DC isetyenzisiwe ukutshintsha imeko yangoku yokutshintsha.Ngoko ke, indawo yokuLatching drive ingahlala ikwimo yokugqibela emva kokuba umbane unyamalala.
Latching Self Sika-off
Ukutshintsha kufuna kuphela okwangoku ngexesha lenkqubo yokutshintsha.Emva kokuba ukutshintshwa kugqityiwe, kukho ukuvala ngoku ngokuzenzekelayo ngaphakathi kokutshintsha.Ngeli xesha, utshintsho alukho okwangoku.Oko kukuthi, inkqubo yokutshintsha idinga amandla ombane angaphandle.Emva kokuba umsebenzi uzinzile (ubuncinci i-50ms), susa i-voltage yangaphandle, kwaye umtshintshi uya kuhlala kwitshaneli echaziweyo kwaye awuyi kutshintshela kwitshaneli yokuqala.
Ngesiqhelo Vula
Le ndlela yokusebenza ye-SPNT isebenza kuphela.Ngaphandle kwamandla ombane, zonke iitshaneli zokutshintsha aziqhubeki;Yongeza unikezelo lwamandla lwangaphandle kwaye utshintshe ukukhetha itshaneli echaziweyo;Xa i-voltage yangaphandle incinci, iswitshi ibuyela kwimeko yokuba zonke iitshaneli aziqhubeki.
Umahluko phakathi kweLatching kunye neFailsafe
Amandla olawulo lweFailsafe asusiwe, kwaye iswitshi itshintshelwa kumjelo oqhelekileyo ovaliweyo;I-voltage yokulawula iLatching iyasuswa kwaye ihleli kwitshaneli ekhethiweyo.
Xa kusenzeka impazamo kwaye amandla eRF ephela, kwaye iswitshi kufuneka ikhethwe kwisitishi esithile, iFailsafe switch inokuqwalaselwa.Le modi ingaphinda ikhethwe ukuba enye ishaneli isetyenziswa ngokuqhelekileyo kwaye enye ishaneli ayisebenzisi ngokufanayo, kuba xa ukhetha umjelo oqhelekileyo, umtshintshi awudingi ukubonelela nge-voltage ye-drive kunye nekhoyo, enokuphucula ukusebenza kwamandla.
Ixesha lokuposa: Dec-03-2022