Attenuator waa qayb elektaroonik ah oo si weyn loogu isticmaalo qalabka elektiroonigga ah, shaqadeeda ugu weyni waa inay bixiso hoos u dhac. Waa curiye tamar qaadata, kaas oo isu beddela kulayl ka dib isticmaalka tamarta. Ujeeddooyinkeeda ugu waaweyn waa: (1) Hagaajin cabbirka calaamadda wareegga; (2) Habka isbarbardhigga wareegga cabbiraadda, waxaa loo isticmaali karaa in si toos ah loo akhriyo qiimaha attenuation ee shabakada la tijaabiyey; (3) Hagaajinta isbarbardhigga isbarbardhigga, haddii wareegyada qaarkood ay u baahan yihiin Marka culeyska culeyska yara deggan la isticmaalo, attenuator ayaa la gelin karaa inta u dhexeysa wareegga iyo culeyska culeyska dhabta ah si loo ilaaliyo isbeddelka impedance. Marka marka la isticmaalayo attenuator, waa maxay arrimaha u baahan fiiro gaar ah?
Aan si faahfaahsan u soo bandhigno hoos:
1. Jawaabta soo noqnoqda: bandwidth inta jeer, guud ahaan lagu muujiyay megahertz (MHz) ama gigahertz (GHz). Attenuators-ujeedada guud guud ahaan waxay leeyihiin xadhkaha xadhkaha goosha ee ku dhow 5 GHz, oo leh xadhkaha xawilaadda ugu badan ee 50 GHz.
2. Kala duwanaanshaha iyo qaab-dhismeedka:
Kala duwanaanshaha attenuation waxaa loola jeedaa saamiga attenuation, guud ahaan u dhexeeya 3dB, 10dB, 14dB, 20dB, ilaa 110dB. Qaaciddada attenuation-ka waa: 10lg (wax-soo-galin/wax-soo-saar), tusaale ahaan: 10dB sifada: wax-soo-saarka: wax-soo-saarka = dhumuc tiro = 10 jeer. Qaabdhismeedku guud ahaan wuxuu u qaybsan yahay laba nooc: attenuator saamile go'an iyo jaangooyooyin la hagaajin karo oo tallaabo ah. Attenuator go'an waxaa loola jeedaa attenuator leh saamiga go'an ee tiro badan oo kala duwan oo soo noqnoqda. Attenuator tillaabo waa attenuator leh qiime go'an iyo saamiga dhexda oo siman oo la hagaajin karo. Waxa loo kala qaybiyaa hab-maamuus-talaabo gacanta ah iyo tallaabo-habeeye-barnaamij leh.
3. Foomka madaxa xidhiidhka iyo cabbirka xidhiidhka:
Nooca xidhiidhiyaha waxa loo qaybiyaa nooca BNC, nooca N, nooca TNC, nooca SMA, nooca SMC, iyo wixii la mid ah.
Cabbirka isku xirka wuxuu u qaybsan yahay nidaamyada metric iyo Imperial, kor ku xusan waxaa lagu go'aamiyaa shuruudaha isticmaalka; Haddii noocyada isku xidhayaasha u baahan yihiin in la isku xidho, isku xidhka isku xidhka u dhigma waa la qalabayn karaa, tusaale ahaan: xidhiidhiyaha nooca BNC ilaa N, iwm.
4. Tusmada attenuation:
Tilmaamayaasha attenuation waxay leeyihiin shuruudo badan, oo ay ugu badan yihiin dhinacyada soo socda: saxnaanta attenuation, u adkeysiga awoodda, caabbinta sifada, isku halaynta, ku celcelinta, iwm.
Sida naqshadeeyaha eeattenuators, Jingxin waxay ku taageeri kartaa noocyada kala duwan ee attenuators iyadoo loo eegayo xalkaaga RF.
Waqtiga boostada: Dec-20-2021
