Izindaba
-
I-LoRa VS LoRaWan
I-LoRa imfushane ku-Long Range.Ibanga eliphansi, ubuchwepheshe bokuxhumana eduze nebanga lebanga.Kuwuhlobo lwendlela, isici sayo esikhulukazi okuyibanga elide lokudluliswa okungenantambo ochungechungeni olufanayo (i-GF, i-FSK, njll.) lusakazekela kude, inkinga yokulinganisa i-dist...Funda kabanzi -
Ukwethulwa okuningiliziwe Komthwalo Wokunqanyulwa Kwe-PIM Ophansi
Ukulayisha okuphansi kwe-intermodulation okunamandla aphezulu, Umthwalo Wokunqanyulwa kwe-PIM ophansi ohlanganisa iyunithi yokunciphisa i-intermodulation ephansi kanye nomthwalo wokumayo wokuzungeza wamandla aphansi oxhumeke ekuphumeni kweyunithi yokuncishiswa kwe-intermodulation ephansi.Imodeli yokusetshenziswa inesakhiwo esilula futhi ...Funda kabanzi -
Izinzuzo Zobuchwepheshe be-5G
Yaziswe yi-China Ministry of Industry and Information Technology: I-China ivule iziteshi eziyisisekelo ze-5G eziyizigidi ezingu-1.425, futhi kulo nyaka izokhuthaza ukuthuthukiswa okukhulu kwezinhlelo zokusebenza ze-5G ngo-2022. kuzwakala sengathi i-5G iyangena ngempela empilweni yethu yangempela, kungani si...Funda kabanzi -
Umphumela we-Passive intermodulation (PIM) eziteshini eziyisisekelo
Amadivayisi asebenzayo ayaziwa ukuthi anemiphumela engaqondile ohlelweni.Kuthuthukiswe amasu anhlobonhlobo ukuze kuthuthukiswe ukusebenza kwemishini enjalo phakathi nezigaba zokuklama nokusebenza.Kulula ukungakunaki ukuthi i-passive device ingase futhi yethule umphumela ongaqondile...Funda kabanzi -
Iyini i-RF attenuator?
I-Attenuator iyingxenye ye-elekthronikhi esetshenziswa kakhulu ezintweni zikagesi, futhi umsebenzi wayo oyinhloko ukuhlinzeka ngokunciphisa.Kuyinto edla amandla, ephenduka ibe ukushisa ngemva kokusetshenziswa kwamandla.Izinjongo zayo eziyinhloko yilezi: (1) Lungisa usayizi we-si...Funda kabanzi -
Ukuxhumana phakathi kwe-RF Combiner ne-Hybrid Coupler
Isihlanganisi sebhendi yefrikhwensi ehlukile isho ukuhlanganiswa kwamandla esiginali yamabhendi amabili ahlukene.Isibonelo, i-RF Combiner CDMA kanye ne-GSM power synthesis;Ukuhlanganiswa kwamandla kwe-CDMA/GSM kanye ne-DCS.Ngenxa yokuhlukaniswa kwamafrikhwensi okukhulu kwamasiginali amabili, iRF Combiner...Funda kabanzi -
Ukubaluleka kwezihlungi ze-RF
Kungani izihlungi ze-RF ziba zibaluleke kakhulu? Ukukhula ngokushesha kwedatha engenantambo yeselula kanye namanethiwekhi e-4G LTE kuholele ekukhuleni kwesidingo samabhendi amasha kanye nokuhlanganiswa kwenkampani yenethiwekhi ukuhlanganisa amabhendi ukuze kufakwe ithrafikhi engenantambo.Inethiwekhi ye-3G isebenzisa kuphela amabhendi amahlanu, i...Funda kabanzi -
Isakhiwo se-RF Cavity Filter kanye nomhlangano wendabuko
Amathuluzi nezinsimbi ezisetshenziswayo yilawa: amathuluzi: isikrudrayiva sikagesi, i-screwdriver ye-Phillips, i-RF cavity filter allen wrench, i-screwdriver yokulungisa iphutha le-flat-blade, njll.;izinsimbi: abahlaziyi benethiwekhi ye-vector, njenge-E5071B, MS4622B, i-RF Cavity Filter, njll;umakhenikha wendabuko...Funda kabanzi -
Umehluko phakathi kwesihlukanisi samandla, i-coupler nesihlanganisi
Isihlukanisi samandla, i-couple nesihlanganisi ziyizingxenye ezibalulekile zohlelo lwe-RF, ngakho-ke singathanda ukwabelana ngomehluko wako phakathi kwazo ngencazelo nomsebenzi wazo.1.Isihlukanisi samandla: Sihlukanisa ngokulinganayo amandla esiginali yembobo eyodwa kumbobo yokuphumayo, ebizwa nangokuthi izihlukanisi zamandla futhi, uma u...Funda kabanzi -
Umthelela wokudizayina kwe-RF ye-passive device kanye nokukhiqizwa ezinhlelweni zokusebenza
Ngokuya ngezimiso zokuklama nokukhiqiza kanye nezinqubo zokukhiqiza, izinto ezisetshenziswayo ezisetshenziswa kunethiwekhi yamanje zingahlukaniswa zibe izinhlobo ze-cavity kanye ne-microstrip.Amadivayisi we-Cavity ikakhulukazi ahlanganisa izingxenye ze-cavity, izihlungi ze-cavity, ama-cavity couplers kanye ne-hybrid, namadivayisi we-microstrip ikakhulukazi afaka...Funda kabanzi -
Indlela Yokuklama Isihlungi Se-Dielectric?
I-Dielectric Filter iyifayibha ebonakalayo edlulisa i-wavelength eyodwa ngokukhetha futhi ibonise ezinye ngokusekelwe Ekuphazameni ngaphakathi kwesakhiwo.Futhi kuthiwa isihlungi sokuphazanyiswa.I-Microwave dielectric effects ceramics ithuthukisa usayizi wamadivayisi kanye nokuminyana kokupakisha ...Funda kabanzi -
Yini I-6G Ezoyiletha Kubantu?
I-4G ishintsha impilo, i-5G ishintsha umphakathi, ngakho-ke i-6G izobashintsha kanjani abantu, futhi izolethani kithi?U-Zhang Ping, isifundiswa se-Chinese Academy of Engineering, ilungu leKomidi Lokweluleka le-IMT-2030(6G) Promotion Group, kanye noprofesa e-Beijing Universi...Funda kabanzi
