Coaxial switch is passive electromechanical relay inoshandiswa kushandura masaini eRF kubva kune imwe chiteshi kuenda kune imwe.Aya ma switch anoshandiswa zvakanyanya mumasaini ekufambisa mamiriro ayo anoda yakakwira frequency, yakakwirira simba uye yakakwira RF kuita.Iyo zvakare inowanzo shandiswa muRF bvunzo masisitimu, senge antenna, setiraiti kutaurirana, nharembozha, base zviteshi, avionics, kana mamwe maapplication anoda kushandura masaini eRF kubva kune imwe mugumo kuenda kune imwe.
Chinja chiteshi
Kana tichitaura nezve coaxial switches, tinowanzo kuti nPmT, kureva, n pole m kukanda, uko n ndiyo nhamba yezviteshi zvekupinza uye m ndiyo nhamba yezviteshi zvinobuda.Semuenzaniso, iyo RF switch ine imwe yekuisa chiteshi uye maviri anobuda madoko anonzi SPDT/1P2T.Kana iyo RF switch ine imwe yekupinza uye gumi nemana zvabuda, isu tinofanirwa kusarudza iyo RF switch yeSP14T.
Chinja parameter uye maitiro
Kana iyo siginecha ichida kuchinjirwa pakati pemigumo yeantenna, tinogona kubva taziva kusarudza SPDT.Kunyangwe chiyero chesarudzo chakadzikiswa kuSPDT, isu tichiri kuda kutarisana neakawanda akajairwa paramita anopihwa nevagadziri.Tinofanira kunyatsoverenga aya ma parameters uye maitiro, akadai seVSWR, Ins.Kurasikirwa, kuparadzaniswa, frequency, connector type, simba remagetsi, voltage, kushandiswa kwemhando, terminal, indication, control circuit uye mamwe maitiro ekusarudza.
Frequency uye connector type
Isu tinofanirwa kuona kuwanda kweiyo system uye sarudza yakakodzera coaxial switch zvinoenderana neiyo frequency.Iyo yakanyanya kushanda frequency yecoaxial switching inogona kusvika 67GHz, uye akasiyana akateedzana coaxial switch ane akasiyana ekushanda frequency.Kazhinji, isu tinogona kutonga frequency yekushanda yecoaxial switch zvinoenderana nerudzi rwekubatanidza, kana mhando yekubatanidza inotara frequency renji yecoaxial switch.
Kune 40GHz application mamiriro, isu tinofanirwa kusarudza 2.92mm yekubatanidza.SMA connectors anonyanya kushandiswa mu frequency renji mukati me26.5GHz.Zvimwe zvinobatanidza zvinowanzoshandiswa, zvakadai seN-musoro uye TNC, zvinogona kushanda pa12.4GHz.Pakupedzisira, iyo BNC yekubatanidza inogona kungoshanda pa4GHz.
DC-6/8/12.4/18/26.5 GHz: SMA connector
DC-40/43.5 GHz: 2.92mm chokubatanidza
DC-50/53/67 GHz: 1.85mm chokubatanidza
Simba rakawanda
Mukushandisa kwedu uye kusarudzwa kwechishandiso, simba remagetsi rinowanzoita kiyi parameter.Isimba rakawanda sei iro switch rinogona kumira rinowanzo kutsanangurwa neyakagadzirwa dhizaini yekuchinja, zvinhu zvinoshandiswa, uye rudzi rwekubatanidza.Zvimwe zvinhu zvakare zvinodzikamisa simba rekuchinja, senge frequency, tembiricha yekushandisa uye urefu.
Voltage
Isu takatoziva mazhinji eakakosha ma paramita e coaxial switch, uye kusarudzwa kweanotevera paramita kunoenderana zvachose nezvinodiwa nemushandisi.
Iyo coaxial switch ine electromagnetic coil uye magineti, inoda DC voltage kutyaira switch kune inoenderana RF nzira.Iwo marudzi emagetsi anoshandiswa pakuenzanisa coaxial switch ndeaya anotevera:
Coil voltage range
5VDC 4-6VDC
12VDC 13-17VDC
24VDC 20-28VDC
28VDC 24-32VDC
Drive Type
Mune switch, mutyairi ndeye electromechanical mudziyo unochinja RF yekubata mapoinzi kubva pane imwe nzvimbo kuenda kune imwe.Kune akawanda RF switch, solenoid valve inoshandiswa kuita pane mechaniki yekubatanidza pane iyo RF kubata.Patinosarudza chinja, tinowanzo tarisana nemhando ina dzakasiyana dzemadhiraivha.
Failsafe
Kana pasina ekunze control voltage inoiswa, imwe chiteshi inogara iripo.Wedzera kunze simba rekupa uye chinja kuti usarudze inoenderana chiteshi;Kana iyo yekunze voltage yanyangarika, switch inochinja otomatiki kune inowanzoita chiteshi.Naizvozvo, zvinodikanwa kupa inoenderera DC magetsi ekuti uchengetedze switch ichichinjirwa kune mamwe madoko.
Latching
Kana iyo latching switch ichida kuchengetedza mamiriro ayo ekuchinja, inoda kuramba ichiisa jekiseni kusvika pulse DC voltage switch yaiswa kushandura ikozvino shanduko.Naizvozvo, iyo Nzvimbo Latching drive inogona kuramba iri munzvimbo yekupedzisira mushure mekunge magetsi anyangarika.
Latching Self Cut-off
Iyo switch inongoda ikozvino panguva yekuchinja maitiro.Mushure mekuchinja kwapera, kune otomatiki yekuvhara ikozvino mukati meiyo switch.Panguva ino, shanduko haina ikozvino.Kureva kuti, shanduko yekuchinja inoda kunze voltage.Mushure mekunge kuvhiyiwa kwagadzikana (inenge 50ms), bvisa iyo yekunze voltage, uye switch icharamba iri pane yakatarwa chiteshi uye haichinji kune yekutanga chiteshi.
Kazhinji Open
Iyi yekushanda modhi SPNT inoshanda chete.Pasina control voltage, ese ekuchinja chiteshi haasi conductive;Wedzera kunze simba rekupa uye chinja kuti usarudze chiteshi chakataurwa;Kana iyo yekunze voltage idiki, switch inodzokera kune iyo nyika kuti ese machani haasi kuita.
Musiyano uripo pakati peLatching neFailsafe
Failsafe yekudzora simba inobviswa, uye switch inochinjirwa kune inowanzovharwa chiteshi;Iyo Latching control voltage inobviswa uye inoramba iri pane yakasarudzwa chiteshi.
Kana kukanganisa kukaitika uye simba reRF ranyangarika, uye switch inoda kusarudzwa mune chaiyo chiteshi, Failsafe switch inogona kutariswa.Iyi modhi inogona zvakare kusarudzwa kana imwe chiteshi ichishandiswa zvakajairika uye imwe chiteshi hachiwanzo kushandiswa, nekuti pakusarudza chiteshi chakajairwa, switch haidi kupa drive voltage uye yazvino, iyo inogona kuvandudza kugona kwemagetsi.
Nguva yekutumira: Zvita-03-2022