- Iyintoni inzuzo ye-antenna?
I-antennaI-gain ibhekisa kumlinganiselo wobuninzi bamandla esignali eveliswa yi-antenna yokwenyani kunye neyunithi efanelekileyo yokurhawuzelela kwindawo enye kwindawo phantsi kwemeko yamandla okufaka alinganayo. Ichaza ngokwenani inqanaba apho i-antenna isasaza khona amandla okufaka ngendlela egxininisiweyo. I-gain ngokucacileyo inxulumene kakhulu nephethini ye-antenna. Okukhona i-lobe ephambili yephethini incinci kwaye i-lobe esecaleni incinci, kokukhona i-gain iphezulu. I-Antenna gain isetyenziselwa ukulinganisa amandla e-antenna okuthumela nokufumana imiqondiso kwicala elithile. Yenye yezona parameter zibalulekileyo zokukhetha ii-antenna zesiseko sesitishi.
Ngokubanzi, ukuphuculwa kwe-gain kuxhomekeke kakhulu ekunciphiseni ububanzi bemitha yemitha ethe nkqo ngelixa kugcinwa ukusebenza kwemitha yemitha ethe nkqo kwindawo ethe tye. I-Antenna gain ibaluleke kakhulu kumgangatho wokusebenza kweenkqubo zonxibelelwano eziphathwayo kuba imisela inqanaba lesignali kumda weseli. Ukwandisa i-gain kunokunyusa ukugubungela kwenethiwekhi kwicala elithile, okanye kwandise i-gain margin ngaphakathi koluhlu oluthile. Nayiphi na inkqubo yeselula yinkqubo eneendlela ezimbini. Ukwandisa i-gain ye-antenna kunokunciphisa ngaxeshanye i-gain budget margin yenkqubo eneendlela ezimbini. Ukongeza, iiparameter ezimele i-antenna gain yi-dBd kunye ne-dBi. I-dBi yi-gain ngokumalunga ne-point source antenna, kwaye i-radiation kuzo zonke iindlela iyafana; i-dBd imalunga ne-gain ye-symmetrical array antenna dBi=dBd+2.15. Phantsi kweemeko ezifanayo, okukhona i-gain iphezulu, kokukhona amaza erediyo anokusasaza umgama omde.
Umzobo wokufumana i-antenna
Xa ukhetha i-antenna gain, kufuneka imiselwe ngokusekelwe kwiimfuno zesicelo esithile.
- Unxibelelwano olufutshane: Ukuba umgama wonxibelelwano mfutshane kwaye akukho zithintelo zininzi, i-antenna gain ephezulu isenokungafuneki. Kwimeko enjalo, i-gain ephantsi (efana0-10dB) ingakhethwa.
RM-BDHA0308-8（0.3-0.8GHz，8 Uhlobo.dBi）
Unxibelelwano oluphakathi: Kunxibelelwano oluphakathi, i-antenna gain ephakathi inokufuneka ukuze kulungiswe ukuncitshiswa kwesignali Q okubangelwa ngumgama wokudlulisela, ngelixa kuthathelwa ingqalelo imiqobo ekwindalo esingqongileyo. Kule meko, i-antenna gain inokubekwa phakathi10 kunye nama-20 dB.
RM-SGHA28-15(26.5-40 GHz ,15 Uhlobo lwe-dBi)
Unxibelelwano olude: Kwiimeko zonxibelelwano ezifuna ukugubungela umgama omde okanye ezinemiqobo engaphezulu, ukuzuza okuphezulu kwe-antenna kunokufuneka ukuze kubonelelwe ngamandla aneleyo esignali ukuze koyiswe imingeni yomgama wokudlulisela kunye nemiqobo. Kule meko, ukuzuza kwe-antenna kunokubekwa phakathi 20 kunye ne-30 dB.
RM-SGHA2.2-25(325-500GHz，25 Uhlobo lwe-dBi）
Indawo enengxolo ephezulu: Ukuba kukho ukuphazamiseka okukhulu kunye nengxolo kwindawo yonxibelelwano, ii-antennas ezifumana ingxolo ephezulu zinokunceda ukuphucula umlinganiselo wesignali-kwingxolo ngaloo ndlela ziphucule umgangatho wonxibelelwano.
Kufuneka kuqatshelwe ukuba ukwanda kokwanda kwe-antenna kunokuhamba kunye nokuncama kwezinye iinkalo, ezifana nolwalathiso lwe-antenna, ukugubungela, iindleko, njl. Ke ngoko, xa ukhetha ukuzuza kwe-antenna, kuyimfuneko ukuqwalasela izinto ezahlukeneyo nokwenza izigqibo ezifanelekileyo ngokusekelwe kwimeko ethile. Eyona ndlela ilungileyo kukwenza uvavanyo lwasentsimini okanye ukusebenzisa isoftware yokulinganisa ukuvavanya ukusebenza phantsi kwamaxabiso ahlukeneyo okufumana inzuzo ukuze ufumane indawo efanelekileyo yokuzuza yendalo.
Ukuze ufunde okungakumbi ngee-antenna, nceda undwendwele:
Ixesha lokuthumela: Novemba-14-2024
