I dont understand the meaning of bandpass. Can anyone suggest me what should i read to understand this concept of bandpass, wideband and etc. Thank you
You can read the theory of filter. Example, lowpass filter, highpass filter, bandpass filter or band reject filter. About wideband, as the definition of ITU, all the data stream with bandwidth higher 2.048 MHZ(Europe) or 1.544MHz(South Africal) is called wideband(broadband), if lower is narrow band.
It is my opinion, so you can check it. Bye
There are a lot of books available on filter design and synthesis. These all definitely include a chapter or two about the basics also. Alternatively in any elementary electronics book, you will find these details. There is a book from R Rhea by Nobel, which would be a good start if you are to focus on passive filters.