IIsihlungi Sokumisa Ibhendi, (BSF) olunye uhlobo lwesekethe ekhetha imvamisa esebenza ngendlela ephambene ne-Band Pass Filter esiyibuke ngaphambilini. Isihlungi se-band stop, esaziwa nangokuthi isihlungi se-band reject, sidlula wonke amaza ngaphandle kwalawo angaphakathi kwe-stop band ethile ancishisiwe kakhulu.
Uma le bhendi yokumisa incane kakhulu futhi inciphile kakhulu ngaphezu kwama-hertz ambalwa, khona-ke isihlungi sebhendi yokumisa sivame ukubizwa ngokuthi isihlungi se-notch, njengoba impendulo yaso yemvamisa ibonisa eye-notch ejulile enokukhetha okuphezulu (ijika eliseceleni eliqinile) kunokuba ibe yibhendi ebanzi eyisicaba.
Futhi, njengesihlungi se-band pass, isihlungi se-band stop (band reject noma notch) siyihlungi se-second-order (two-pole) esinama-cut-off frequency amabili, aziwa kakhulu ngokuthi ama--3dB noma ama-half-power points akhiqiza i-wide stop band bandwidth phakathi kwala maphuzu amabili e--3dB.
Khona-ke umsebenzi wesihlungi se-band stop ukudlula kakhulu wonke lawo mafrikhwensi ukusuka ku-zero (DC) kuya endaweni yawo yokuqala (ephansi) yefrikhwensi yokusika i-ƒL, bese udlula wonke lawo mafrikhwensi ngaphezu kwefrikhwensi yesibili (ephezulu) yokusika i-ƒH, kodwa uvimbele noma wenqabe wonke lawo mafrikhwensi aphakathi. Bese i-bandwidth yezihlungi, i-BW ichazwa ngokuthi: (ƒH – ƒL).
Ngakho-ke ngesihlungi sokumisa ibhendi ebanzi, ibhendi yokumisa yangempela yezihlungi iphakathi kwamaphuzu ayo aphansi naphezulu -3dB njengoba incipha, noma yenqaba noma yimuphi umvamisa phakathi kwalezi mvamisa ezimbili ezinqunyiwe. Ngakho-ke kunikezwa ijika lokuphendula imvamisa yesihlungi sokumisa ibhendi esifanele.
Okuhle kakhuluisihlungi sokuma kwebhendiizoba nokuncipha okungenamkhawulo kubhendi yayo yokuma kanye nokuncipha okungu-zero kunoma yiliphi ibhendi yokuma. Ukushintsha phakathi kwamabhendi amabili okuma kanye nebhendi yokuma kungaba mpo (udonga lwezitini). Kunezindlela eziningana esingaklama ngazo "Isihlungi Sokumisa Ibhendi", futhi zonke zifeza injongo efanayo.
Amayunithi eza nezixhumi ezijwayelekile ze-SMA noma ze-N zesifazane, noma izixhumi ezingu-2.92mm, 2.40mm, kanye ne-1.85mm zezingxenye zemvamisa ephezulu.
Singakwazi futhi ukwenza ngezifisoIsihlungi Sokumisa Ibhendingokwezidingo zakho. Ungangena ekhasini lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.
Isikhathi sokuthunyelwe: Agasti-20-2022
