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Yintoni iIsihluzi seRF?

Isihluzo serediyo siyinxalenye ebalulekileyo yetekhnoloji engenazingcingo. Sisetyenziswa kunye nerediyo yokwamkela umsakazo ukucoca ezinye iibhendi zerediyo ezingafunekiyo kwaye sifumana kuphela i-frequency echanekileyo. Izihluzo zeRF zenzelwe ukusebenza ngokulula kuluhlu lwe-frequency ukusuka kwi-frequency ephakathi ukuya kwi-frequency ephezulu kakhulu (umz. i-megahertz kunye ne-gigahertz). Ngenxa yeempawu zayo zokusebenza, isetyenziswa kakhulu kwizikhululo zerediyo, unxibelelwano olungenazingcingo, umabonwakude kunye nezinye izixhobo.

Ngokubanzi, uninzi lwee-RF filters zenziwe zii-resonators ezidibeneyo, kwaye izinto ezisemgangathweni wazo zinokumisela inqanaba lokucoca kwi-RF. Ngokwesicelo kunye nobungakanani bezixhobo ezingenazingcingo, kukho iintlobo ezininzi ze-filter, ezizezi: i-cavity filter, i-plane filter, i-electroacoustic filter, i-dielectric filter, i-coaxial filter (ngaphandle kwentambo ye-coaxial), njl.

Iintlobo ezisisiseko zeRadio Frequency Filter

Isihluzo se-RF sisijikelezo esikhethekileyo esivumela imiqondiso echanekileyo ukuba idlule ngelixa isusa imiqondiso engafunekiyo. Ngokuphathelele i-topology yesihluzo, kukho iintlobo ezine ezisisiseko zesihluzo se-RF, ezizezi, isihluzo esidlulayo phezulu, isihluzo esidlulayo esisezantsi, isihluzo esidlulayo sebhendi kunye nesihluzo sokumisa ibhendi.

Isihluzi sePasi esezantsi:

Njengoko igama lisitsho, isihluzi esidlula kancinci sisihluzi esivumela kuphela amaza aphantsi ukuba adlule kwaye anciphise amanye amaza esignali ngexesha elinye. Xa isignali idlula kwi-bandpass, ukuncitshiswa kwamaza ayo kuxhomekeka kwizinto ezininzi, ezifana ne-filter topology, ulwakhiwo kunye nomgangatho wecandelo. Ukongeza, i-filter topology ikwamisela isantya sokutshintsha kwesihluzi ukusuka kwi-passband ukuze kufezekiswe ukucinywa kwayo kokugqibela.

Izihluzi eziphantsi ziza ngeendlela ezahlukeneyo. Eyona ndlela iphambili yokusebenzisa isihluzi kukuthintela i-harmonic ye-RF amplifier. Olu phawu lubalulekile kuba lunceda ekuthinteleni ukuphazamiseka okungeyomfuneko kwiibhendi ezahlukeneyo zothumelo. Ngokuyintloko, izihluzi eziphantsi zisetyenziselwa usetyenziso lwesandi kwaye zihluza ingxolo evela kuyo nayiphi na isekethe yangaphandle. Emva kokuba isignali ye-frequency ephezulu ihluziwe, i-frequency yesignali efunyenweyo iba nomgangatho ocacileyo.

Isihluzi seHigh Pass:

Ngokungafaniyo nesihluzi se-low pass, isihluzi se-high pass sivumela kuphela imiqondiso ye-high frequency ukuba idlule. Enyanisweni, isihluzi se-high pass kunye nesihluzi se-low pass ziyahambelana kakhulu, kuba zombini izihluzi zingasetyenziswa kunye ukuvelisa isihluzi se-band-pass. Uyilo lwesihluzi se-high pass luthe ngqo kwaye lunciphisa i-frequency engaphantsi kwe-threshold point.

Ngokubanzi, izihluzi ze-high pass zisetyenziswa kwiinkqubo ze-audio, apho zonke ii-frequency eziphantsi zihluzwa khona. Ukongeza, ikwasetyenziselwa ukususa izithethi ezincinci kunye ne-bass kwiimeko ezininzi; Ezi zihluzi zakhelwe ngokukodwa kwizithethi. Nangona kunjalo, ukuba kukho iprojekthi ye-DIY ebandakanyekayo, isihluzi se-high pass sinokuqhagamshelwa lula kwinkqubo.

Izihluzi zeBand Pass:

Isihluzo sebhendi sisixhobo esivumela imiqondiso evela kwiifrequencies ezimbini ezahlukeneyo ukuba idlule kwaye inciphise imiqondiso engekho kuluhlu lwayo olwamkelekileyo. Uninzi lwezihluzo zebhendi zixhomekeke kuyo nayiphi na imithombo yamandla yangaphandle kwaye zisebenzisa izinto ezisebenzayo, ezizezi iisekethe ezidibeneyo kunye neetransistors. Olu hlobo lwesihluzo lubizwa ngokuba sisihluzo sebhendi esisebenzayo. Kwelinye icala, ezinye izihluzo zebhendi azisebenzisi umbane wangaphandle kwaye zixhomekeke kakhulu kwizinto ezingasebenziyo, ezizezi inductors kunye nee-capacitors. Ezi zihluzo zibizwa ngokuba zizihluzo zebhendi ezingasebenziyo.

Izihluzi ze-bandpass zisetyenziswa kakhulu kwi-receivers ezingenazingcingo kunye nee-transmitters. Umsebenzi waso ophambili kwi-transmitter kukunciphisa i-bandwidth yesignali yokuphuma ukuya kwinqanaba elincinci, ukuze idatha efunekayo idluliselwe ngesantya esifunekayo kunye nefom. Xa i-receiver ibandakanyeka, isihluzi se-band-pass sivumela kuphela ukucacisa okanye ukuva inani elifunekayo lee-frequency, ngelixa sinqumla ezinye izibonakaliso ezivela kwii-frequency ezingafunekiyo.

Ngamafutshane, xa isihluzi sebhendi silungiselelwe, sinokunyusa umgangatho wesiginali ngokulula kwaye sinciphise ukhuphiswano okanye ukuphazamiseka phakathi kwemiqondiso.

Ukungavumi kwebhendi:

Ngamanye amaxesha ibizwa ngokuba yi-band stop filter, i-band stop filter sisihluzo esivumela uninzi lwee-frequencies ukuba zidlule ngaphandle kokutshintsha. Nangona kunjalo, inciphisa ii-frequencies ezingaphantsi koluhlu oluthile. Umsebenzi wayo uchasene ngokupheleleyo nowe-band-pass filter. Ngokusisiseko, umsebenzi wayo kukudlulisa i-frequency ukusuka kwi-zero ukuya kwindawo yokuqala yokusika ye-frequency. Phakathi, idlula zonke ii-frequencies ngaphezulu kwendawo yesibini yokusika ye-frequency. Nangona kunjalo, iyala okanye ivale zonke ezinye ii-frequencies phakathi kwezi ndawo zimbini.

Ngamafutshane, isihluzo yinto evumela imiqondiso ukuba idlule ngoncedo lwe-passband. Ngamanye amazwi, i-stopband kwisihluzo yindawo apho ezinye iifrequencies zingavunyelwa yiyo nayiphi na i-filter. Nokuba yi-high pass, i-low pass okanye i-band pass, isihluzo esifanelekileyo sisihluzo esingenalahleko kwi-pass band. Nangona kunjalo, enyanisweni, akukho sihluzo esifanelekileyo kuba i-bandpass iya kufumana ukulahleka kwe-frequency ethile kwaye akunakwenzeka ukufikelela ekucinezelweni okungapheliyo xa i-stopband ifikelelwe.

Kutheni iiRadio Frequency Filters zibaluleke kangaka?

Iifiltha zeRF zisetyenziselwa ukwahlulahlula iifrikhwensi zesignali, kodwa yintoni eyenza zibaluleke kangaka? Ngamafutshane, iifiltha zeRF zinokucoca iingxolo ezinokuchaphazela umgangatho okanye ukusebenza kwayo nayiphi na inkqubo yonxibelelwano okanye zinciphise ukuphazamiseka kwemiqondiso yangaphandle. Ukungabikho kwesihluzo seRF esifanelekileyo kunokonakalisa ukuhanjiswa kwefrikhwensi yesignali, kwaye ekugqibeleni kunokonakalisa inkqubo yonxibelelwano.

Ngoko ke, izihluzi zeRF zidlala indima ebalulekileyo kwiinkqubo zonxibelelwano ezingenazingcingo (umz. isathelayithi, iradar, iinkqubo ezingenazingcingo eziphathwayo, njl.njl.). Xa kufikwa ekusebenzeni kwezithuthi zomoya ezingenabantu (i-UAS), ukubaluleka kwezihluzi zeRF kucacile. Ukungabikho kwenkqubo efanelekileyo yokucoca kuya kuyichaphazela i-UAS ngeendlela ezininzi, ezifana:

Uluhlu lonxibelelwano lunokwehliswa luphazamiseko olubangelwa zizinto zangaphandle ezingqongileyo. Ukongeza, ukufumaneka kwenani elikhulu leesignali zeRF emoyeni kunokubangela umonakalo omkhulu kwinkqubo yonxibelelwano ye-UAV. Izibonakaliso ezinobungozi ezivela kwamanye amaqonga ziquka kodwa azikhawulelwanga ku:; Umsebenzi wesignali ye-Wi Fi onzulu kunye nezinye iinkqubo zonxibelelwano ezisebenza ngaphakathi kwe-UAS.

Ukuphazamiseka okuvela kwezinye iinkqubo zonxibelelwano kuya kuphazamisa ijelo lonxibelelwano le-UAS, ngaloo ndlela kunciphisa okanye kunciphise uluhlu lonxibelelwano lweenkqubo ezinjalo.

Ukuphazamiseka kuya kuchaphazela ukwamkelwa kwesignali ye-GPS ye-UAS; Oku kwandisa amathuba okuba kubekho iimpazamo ekulandeleni i-GPS. Kwimeko embi kakhulu, oku kunokubangela ukulahleka ngokupheleleyo kokwamkelwa kwesignali ye-GPS.

Ngesihluzo se-RF esifanelekileyo, ukuphazamiseka kwangaphandle kunye nokuphazamiseka kwesignali okubangelwa ziinkqubo zonxibelelwano ezikufutshane kunokupheliswa lula. Oku kugcina umgangatho wesantya sesignali esifunekayo ngelixa kucoca ngokulula zonke iifrikhwensi zesignali ezingafunekiyo.

Ukongeza, izihluzi zeRF nazo zidlala indima ebalulekileyo kwimeko-bume yefowuni ephathwayo. Xa kufikwa kwiifowuni eziphathwayo, zifuna inani elithile leebhendi zefrikhwensi ukuze zisebenze ngokufanelekileyo. Ngenxa yokunqongophala kwezihluzi zeRF ezifanelekileyo, iibhendi ezahlukeneyo zefrikhwensi aziyi kuhlala ngaxeshanye, nto leyo ethetha ukuba ezinye iibhendi zefrikhwensi ziya kwaliwa, oko kukuthi, iGlobal Navigation Satellite System (GNSS), ukhuseleko loluntu, iWiFi, njl. Apha, izihluzi zeRF zidlala indima ebalulekileyo ngokuvumela zonke iibhendi ukuba zihlale ngaxeshanye.

Ngokubanzi, izihluzi zilula kwaye zinceda ukuphucula ukusebenza kwesandisi-lizwi. Ukuba isihluzi seRF asiboneleli ngokusebenza okufunekayo, ungajonga ezinye iindlela ezahlukeneyo, enye yazo kukongeza ii-amplifier kuyilo lwakho. Ukusuka kwi-grid amplifier ukuya kuyo nayiphi na enye i-RF power amplifier, ungaguqula isandisi-lizwi esisezantsi sibe yisandisi-lizwi esiphezulu; Ukuze kuphuculwe ukusebenza ngokubanzi koyilo lweRF.

I-Si Chuan Keenlion Microwave iluhlu olukhulu kwiindlela ezinqamlezileyo kunye ne-broadband, igubungela amaza ukusuka kwi-0.5 ukuya kwi-50 GHz. Zenzelwe ukuphatha amandla okufaka ukusuka kwi-10 ukuya kwi-30 watts kwinkqubo yokudlulisela ye-50-ohm. Uyilo lwe-Microstrip okanye lwe-stripline luyasetyenziswa, kwaye lulungiselelwe ukusebenza kakuhle.

Singakwazi nokwenza ngokwezifiso iRF Filter ngokweemfuno zakho. Ungangena kwiphepha lokwenza ngokwezifiso ukuze unikeze iinkcukacha ozifunayo.

https://www.keenlion.com/customization/

I-Sichuan Keenlion Microwave Technology Co., Ltd.

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