What is Band pass filter: Definition and 16 Discussions
A band-pass filter or bandpass filter (BPF) is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
Here is my thought experiment: Let's say I attenuate a very short laser pulse to single photon intensity. Due to the uncertainty principle, I know the time of arrival of the photons, but not their energy. So let's reverse that by splitting the pulse in its spectral components with a diffraction...
I want to know about RC band pass filter ! more specifically details about the graph of voltage vs frequency..
how the curves goes up and why the curve goes down? I don't understand ...
please help me out
Homework Statement
So I've been tasked with designing and band pass filter for my signals class. We're given the specifications that it needs to go from 200-5000Hz, and we need to use a kaiser window as the window function.
Homework Equations
There are 2 parameters, beta and N, given by these...
This 400-700nm slice is the Photosynthetically Active Radiation (PAR) required of plants and, for many applications, there is much unwanted UV and IR heat outside of it.
Is there any known translucent material or film that will pass a high % of that 400-700nm wavelength from sunlight while also...
Hey guys,
I am learning about the filter shapes deduced from the poles and zero plots, however a lot of sources are describing it differently with no logical explanation. I want to know what exactly the poles and zeros do between the range Ω = 0 and Ω = π. One source i read explains if the pole...
Homework Statement
I am doing a project on the Elenco AM/FM superheterodyne radio kit. I have been stuck for ages trying to figure out how the two common emitter amplifiers are tuned to filter out anything that is not around 455 kHz. I tried to find a bandpass filter, or a high-pass and a...
Hey guys,
So I have been running some simulations where I am creating a BPF around the FM band and when I measure the signal on the output, it's much lower than my original signal. So I thought if I put a buffer between the LPF and HPF to electrically isolate the circuits this would help, but...
Hi all,
I'm working on some image analysis as a part of my research, specifically trying to match images. The method I am using transforms the image into the frequency domain and then applies a band pass (or mesa) filter to eliminate noise and the dc component of the image.
I have never...
Hi,
I've encountered some problem during solved the band pass filter and twin-T notch filter. I don't really understand what the question exactly meant...hope can get some idea in here..thx
1.) A signal conditioning system uses a frequency variation from 6 kHz to 60 kHz to carry...
Homework Statement
Given: K=17, R1=R2=6,247 Ohm
Calculate the value of C1=C2=C to set the center frequency of the filter to 17.3 kHz.Homework Equations
w0 = 1/[C*sqr(Rth*KR2)] from lecture notes
R1=RthThe Attempt at a Solution
w0 = 1/[C*sqr(Rth*K*R2)]
C= 1/[w0*sqr(Rth*K*R2)]
C=...
Homework Statement
draw a circuit for a and pass filter using only capacitor and resistors that will transmit signals in the range 200-1500 hertz. if there are only 100 nf capacitors choose resistor values.
Homework Equations
The Attempt at a Solution
i know the circut would...
Homework Statement
A band Pass filter is given with the following configuration, R-Resistor, C-Capacitor:
See Attatchment 1 - Circuit.jpg
https://www.physicsforums.com/attachment.php?attachmentid=16241&stc=1&d=1225999965
R1 = R2 = 10 kΩ
C1 and C2 are unknown
Cut off Frequencies...
Homework Statement
Hey guys, quick EE question for ya.
This is the end of a signals and noise assignment and i think I've got it but I am not sure so i thought id check. Attached is the question, doing the 2nd part of 13
The part that isn't shown that we need is that the band pass is between...
hi there
ive been attemping this question and i cannot find the equation to work it out anywhere !
any help would be great !
for a passive band pass filter
from the following list choose the three components which would produce a cut off frequency closest to 7 khz and a band width...