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by using a suitable diagram, explain the one of the operation in microwave energy sources except Guinn Diode.
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Answers.com says it is a microwave amplifier in which a Gunn oscillator functions as a negative-resistance amplifier when placed across the terminals of a microwave source.
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Gunn diodes are used in GUNN oscillator over high frequency application. its work on the transfer electron effect TET and the scientist J.B Gunn observe it so the phenomenon is named by gunn effect. the diode are made from GaAs material.because silicon is not suitable low forbidden energy gap 1.21eV only.
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Phase-shift oscillator
Armstrong oscillator
Cross-coupled LC oscillator
RC oscillator
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oscillator frequency is different.crystal working piezo electric effect
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clapp oscillator have frequency more stable and accurate than colpitts oscillator.
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The oscillator which is blocked by using transformer is called a blocking oscillator. Generally, the primary is given to the base and secondary is given to the collector of the transistor used in the oscillator circuit.
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A Wein Bridge Oscillator is a oscillator which is used for the measurement of Audio Frequency.
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clapp oscillator have frequency more stable and accurate than colpitts oscillator.
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These are a niche market, and the demand is not particularly high. Designing a Gunn or Impatt oscillator is not a trivial exercise, and the biasing is a pain. These designs are generally built by skilled craftsmen and are not suited to mass production. At 24 GHz or below, a GaAs MESFET or PHEMT is much more practical as an active device.
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Phase-shift oscillator
Armstrong oscillator
Cross-coupled LC oscillator
RC oscillator
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Gunn oscillators are widely used in the microwave to Terahertz region.
This uses a metallic coaxial cavity (in effect, a short length of co-axial cable) to provide the resonant effect which has been modelled earlier as an LC circuit. Although it looks very different, the oscillator shares with a laser the use of a cavity. The size of this cavity determines the time/phase delay which sets the resonant frequency. In this case, each diode induced fluctuation travels up the cavity and reflected from the far end, returning to the diode after a time
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A Colpitts oscillator is the electrical dual of a Hartley oscillator. The Hartley oscillator is an LC electronic oscillator that derives its feedback from a tapped coil in parallel with a capacitor. http://en.wikipedia.org/wiki/Colpitts_oscillator http://en.wikipedia.org/wiki/Hartley_oscillator ~MECHASUN~ A Colpitts oscillator is the electrical dual of a Hartley oscillator. The Hartley oscillator is an LC electronic oscillator that derives its feedback from a tapped coil in parallel with a capacitor. http://en.wikipedia.org/wiki/Colpitts_oscillator http://en.wikipedia.org/wiki/Hartley_oscillator ~MECHASUN~
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The expectation value of potential energy for a harmonic oscillator is equal to half of the oscillator's spring constant multiplied by the square of the oscillator's displacement from its equilibrium position.
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An unstable oscillator is an oscillator that cannot hold one or more of its parameters constant (e.g. the frequency drifts, the amplitude drifts).
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Octavia Gunn's birth name is Octavia Daniecy'A Gunn.
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A transistor is often referred to as an oscillator because of its ability to transfer resistance. it can also switch off and on repeatedly, mimicking an oscillator.
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The R-C oscillator is also called a phase shift oscillator because the R-C filter creates a phase shift from input to output. The feedback portion of the oscillator (an amplifier) then serves to pump energy back into the filter.
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The Clapp oscillator is a variation of the Colpitts oscillator that includes an additional capacitor in series with the inductor to improve frequency stability. This additional capacitor in the Clapp oscillator helps reduce the effect of the active device's parasitic capacitance, leading to better frequency stability compared to the Colpitts oscillator.
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Several oscillator designs use a tapped coil in the tuned circuit. The most common is the Hartley oscillator.
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Colpitt oscillator is better than hartley because colpitt produces less phase noise and uses capacitor instead of inductor as used in hartley oscillator which means that area is also saved.
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An oscillator that establishes the carrier frequency of the output of an amplifier or transmitter.
Source : Answers.com
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phaseshift of wienbridge is 0
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The expectation value of momentum for a harmonic oscillator is zero.
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Not necessarily. An oscillator is a system that tends to repeat a specific behavior or motion over time. While linear motion can be a characteristic of an oscillator, other types of motion such as circular or rotational motion can also be exhibited by an oscillator.
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