IIsihlungi sokumisa ibhande, (BSF) ingolunye uhlobo lwesekethe ekhetha imvamisa esebenza ngendlela ephambene ncamashi nesihlungi se-Band Pass esike sayibheka. Isihlungi sokumisa ibhendi, esaziwa nangokuthi isihlungi sokunqatshelwa kwebhendi, sidlula wonke amafrikhwensi ngaphandle kwalawo angaphakathi kwebhendi yokumisa ecacisiwe ancishiswe kakhulu.
Uma le bhendi yokumisa iyingcingo kakhulu futhi incishiswe kakhulu ngama-hertz ambalwa, khona-ke isihlungi sokumisa ibhande sivame ukubizwa ngaso njengesihlungi se-notch, njengoba impendulo yaso yemvamisa ibonisa ukuthi inothi elijulile elinokukhethwa okuphezulu (ijika elibheke emaweni) kunebhande elibanzi eliyisicaba.
Futhi, njengesihlungi sokudlula ibhendi, isihlungi sokumisa ibhande (i-band reject noma notch) isihlungi se-oda lesibili (izigxobo ezimbili) esinamafrikhwensi amabili anqamukile, ngokuvamile aziwa ngokuthi -3dB noma amaphuzu anamandla ayingxenye akhiqiza umkhawulokudonsa webhendi yokumisa ebanzi phakathi kwalawa maphuzu amabili -3dB.
Khona-ke umsebenzi wesihlungi sokumisa ibhande usudlulisa kakhulu lawo maza ukusuka ku-zero (DC) kuze kufike endaweni yawo yokuqala (ephansi) yokunqamula imvamisa engu-ƒL, bese udlula wonke lawo mafrikhwensi ngaphezu kwe-frequency yayo yesibili (phezulu) yokunqamula ƒH, kodwa vimba noma wenqabe wonke lawo maza phakathi. Bese umkhawulokudonsa wezihlungi, i-BW ichazwa ngokuthi: (ƒH – ƒL).
Ngakho-ke ngesihlungi sokumisa ibhendi ebanzi, ibhande lokumisa langempela lezihlungi liphakathi kwamaphoyinti alo aphansi nangaphezulu -3dB njengoba lincipha, noma lenqaba noma iyiphi imvamisa phakathi kwalezi zikhathi ezimbili ezinqanyuliwe. Ngakho-ke ijika lokuphendula lemvamisa yesihlungi sokumisa ibhendi liyanikezwa.
Okuhleisihlungi sokumisa ibhandeingaba nokuncipha okungapheli kubhendi yayo yesitobhi kanye ne-zero attenuation kunoma iyiphi ibhendi yokudlula. Inguquko phakathi kwamabhendi amabili okudlula kanye nebhendi yokumisa izoba mpo (udonga lwesitini). Kunezindlela ezimbalwa esingaklama ngazo “Isihlungi Se-Band Stop”, futhi zonke zifeza injongo efanayo.
Amayunithi eza ajwayelekile anezixhumi ze-SMA noma ze-N zesifazane, noma izixhumi ezingu-2.92mm, 2.40mm, nezingu-1.85mm zezingxenye zefrikhwensi ephezulu.
Singakwazi futhi ukwenza ngendlela oyifisayo i-Isihlungi sokumisa ibhandengokwezidingo zakho. Ungafaka ikhasi lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.
Isikhathi sokuthumela: Aug-20-2022
