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Band-pass filter, the Glossary

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.^[1]

56 relations: Acoustic resonance, Algorithm, Analogue electronics, Astronomy, Atmospheric science, Atomic line filter, Attenuation, Audio crossover, Band-stop filter, Bandwidth (signal processing), Capacitor, Cutoff frequency, Cyclone, David H. Hubel, Decade (log scale), Decibel, Difference of Gaussians, Digital signal processing, Electrical network, Electronic circuit, Filter (signal processing), Frequency, Gabor filter, Group delay and phase delay, High-pass filter, Inductor, Insertion loss, Low-pass filter, Main sequence, Multiplicative inverse, Neuroscience, Octave (electronics), Optical filter, Passband, Periodic function, Q factor, Radio noise, Redshift, Resistor, Resonator, Return loss, RLC circuit, Roll-off, Sallen–Key topology, Signal, Signal processing, Simple cell, Sound, Sound pressure, Spectrum, ... Expand index (6 more) »
Filter frequency response
Synthesiser modules

Acoustic resonance

Acoustic resonance is a phenomenon in which an acoustic system amplifies sound waves whose frequency matches one of its own natural frequencies of vibration (its resonance frequencies).

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Algorithm

In mathematics and computer science, an algorithm is a finite sequence of mathematically rigorous instructions, typically used to solve a class of specific problems or to perform a computation.

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Analogue electronics

Analogue electronics (analog electronics) are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels.

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Astronomy

Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos.

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Atmospheric science

Atmospheric science is the study of the Earth's atmosphere and its various inner-working physical processes.

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An atomic line filter (ALF) is a more effective optical band-pass filter used in the physical sciences for filtering electromagnetic radiation with precision, accuracy, and minimal signal strength loss.

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Attenuation

In physics, attenuation (in some contexts, extinction) is the gradual loss of flux intensity through a medium.

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Audio crossover

Audio crossovers are a type of electronic filter circuitry that splits an audio signal into two or more frequency ranges, so that the signals can be sent to loudspeaker drivers that are designed to operate within different frequency ranges.

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Band-stop filter

In signal processing, a band-stop filter or band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. Band-pass filter and band-stop filter are filter frequency response, linear filters and Synthesiser modules.

See Band-pass filter and Band-stop filter

Bandwidth (signal processing)

Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies. Band-pass filter and Bandwidth (signal processing) are filter frequency response.

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Capacitor

In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other.

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Cutoff frequency

In physics and electrical engineering, a cutoff frequency, corner frequency, or break frequency is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced (attenuated or reflected) rather than passing through.

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Cyclone

In meteorology, a cyclone is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anticyclone).

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David H. Hubel

David Hunter Hubel (February 27, 1926 – September 22, 2013) was an American Canadian neurophysiologist noted for his studies of the structure and function of the visual cortex.

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Decade (log scale)

One decade (symbol dec) is a unit for measuring ratios on a logarithmic scale, with one decade corresponding to a ratio of 10 between two numbers.

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Decibel

The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B).

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Difference of Gaussians

In imaging science, difference of Gaussians (DoG) is a feature enhancement algorithm that involves the subtraction of one Gaussian blurred version of an original image from another, less blurred version of the original.

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Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations.

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Electrical network

An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances, capacitances).

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Electronic circuit

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow.

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Filter (signal processing)

In signal processing, a filter is a device or process that removes some unwanted components or features from a signal.

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Frequency

Frequency (symbol f), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time.

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Gabor filter

In image processing, a Gabor filter, named after Dennis Gabor, who first proposed it as a 1D filter. Band-pass filter and Gabor filter are linear filters.

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Group delay and phase delay

In signal processing, group delay and phase delay are two related ways of describing how a signal's frequency components are delayed in time when passing through a linear time-invariant (LTI) system (such as a microphone, coaxial cable, amplifier, loudspeaker, telecommunications system, ethernet cable, digital filter, or analog filter).

See Band-pass filter and Group delay and phase delay

High-pass filter

A high-pass filter (HPF) is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency. Band-pass filter and high-pass filter are filter frequency response, linear filters and Synthesiser modules.

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Inductor

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.

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Insertion loss

In telecommunications, insertion loss is the loss of signal power resulting from the insertion of a device in a transmission line or optical fiber and is usually expressed in decibels (dB).

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Low-pass filter

A low-pass filter is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. Band-pass filter and low-pass filter are filter frequency response, linear filters and Synthesiser modules.

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Main sequence

In astronomy, the main sequence is a classification of stars which appear on plots of stellar color versus brightness as a continuous and distinctive band.

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Multiplicative inverse

In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1.

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Neuroscience

Neuroscience is the scientific study of the nervous system (the brain, spinal cord, and peripheral nervous system), its functions and disorders.

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Octave (electronics)

In electronics, an octave (symbol: oct) is a logarithmic unit for ratios between frequencies, with one octave corresponding to a doubling of frequency.

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Optical filter

An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the optical path, which are either dyed in the bulk or have interference coatings.

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Passband

A passband is the range of frequencies or wavelengths that can pass through a filter. Band-pass filter and passband are filter frequency response.

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Periodic function

A periodic function or cyclic function, also called a periodic waveform (or simply periodic wave), is a function that repeats its values at regular intervals or periods.

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Q factor

In physics and engineering, the quality factor or Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is. Band-pass filter and q factor are linear filters.

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Radio noise

In radio reception, radio noise (commonly referred to as radio static) is unwanted random radio frequency electrical signals, fluctuating voltages, always present in a radio receiver in addition to the desired radio signal.

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Redshift

In physics, a redshift is an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation (such as light).

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Resistor

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.

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Resonator

A resonator is a device or system that exhibits resonance or resonant behavior.

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Return loss

In telecommunications, return loss is a measure in relative terms of the power of the signal reflected by a discontinuity in a transmission line or optical fiber.

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RLC circuit

An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel.

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Roll-off

Roll-off is the steepness of a transfer function with frequency, particularly in electrical network analysis, and most especially in connection with filter circuits in the transition between a passband and a stopband. Band-pass filter and Roll-off are filter frequency response.

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Sallen–Key topology

The Sallen–Key topology is an electronic filter topology used to implement second-order active filters that is particularly valued for its simplicity. Band-pass filter and Sallen–Key topology are linear filters.

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Signal

Signal refers to both the process and the result of transmission of data over some media accomplished by embedding some variation.

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Signal processing

Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential fields, seismic signals, altimetry processing, and scientific measurements.

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Simple cell

A simple cell in the primary visual cortex is a cell that responds primarily to oriented edges and gratings (bars of particular orientations).

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Sound

In physics, sound is a vibration that propagates as an acoustic wave through a transmission medium such as a gas, liquid or solid.

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Sound pressure

Sound pressure or acoustic pressure is the local pressure deviation from the ambient (average or equilibrium) atmospheric pressure, caused by a sound wave.

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Spectrum

A spectrum (spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum.

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Stopband

A stopband is a band of frequencies, between specified limits, through which a circuit, such as a filter or telephone circuit, does not allow signals to pass, or the attenuation is above the required stopband attenuation level.

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Torsten Wiesel

Torsten Nils Wiesel (born 3 June 1924) is a Swedish neurophysiologist.

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Two-port network

In electronics, a two-port network (a kind of four-terminal network or quadripole) is an electrical network (i.e. a circuit) or device with two pairs of terminals to connect to external circuits.

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Visual cortex

The visual cortex of the brain is the area of the cerebral cortex that processes visual information.

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4G

4G is the fourth generation of broadband cellular network technology, succeeding 3G and preceding 5G.

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5G

In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones.

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References

[1] https://en.wikipedia.org/wiki/Band-pass_filter

Also known as Applications of band-pass filters, Band pass filter, Band-pass, Band-pass filters, Bandpass, Bandpass filter, Pass filter, RCL filter, Shape factor (filters).

, Stopband, Torsten Wiesel, Two-port network, Visual cortex, 4G, 5G.

Band-pass filter, the Glossary

Table of Contents

See also

Filter frequency response

Synthesiser modules

References