Introduction

-What is Gunn Diode?
The Gunn diode is used as local oscillator covering the microwave frequency range of 1 to 100GHz
-How Gunn Diode works?
By means of the transferred electron mechanism, it has the negative resistance characteristic
-What s the applications?
Local Oscillator and Avoid Collision Radar instead of Klystron etc..
-What s the advantages?
Low noise, High frequency operation and Medium RF Power

Gunn Effect

Gunn effect was discovered by J.B Gunn ....etc

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gunn diode report for technical seminar pdf

Abstract

A Gunn diode, also known as a transferred electron device (TED), is a form of diode, a two-terminal passive semiconductor electronic component, with negative resistance, used in high-frequency electronics. It is based on the Gunn effect discovered in 1962 by physicist J. B. Gunn. Its largest use is in electronic oscillators to generate microwaves, in applications such as radar speed guns and microwave relay data page link transmitters.

Introduction

Its internal construction is unlike ot ....etc

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I WANT VIVA QUESTONS AND ITS ANSWERS FOR PN JUNCTION DIODE EXPERIMENT? ....etc

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P-N JUNCTION DIODE
OBJECTIVE
1. describe the electrical properties of semiconductors and distinguish between p-type and n-type material;
2. explain the formation of a depletion layer at a p-n junction;
3. discuss the flow of current when the p-n junction diode is forward-biased or reverse-biased;
4. discuss the I-V characteristic of the p-n junction diode.
5. use the diode for half-wave rectification;
6. use the bridge rectifier (4 diodes) for full-wave rectification;
7. represent half-wave and full-wave ....etc

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viva questions on characteristics of led diode

LED Frequently Asked Questions
LED technology continues to develop rapidly as a general light source. As more LED lighting products are ntroduced on the market, what do retailers, energy efficiency advocates, and consumers need to know to make informed buying decisions?

why the LED emitting light but the PN junction diodes are not?
Injection electroluminescence or the light emitting process in a LED occurs when minority carriers recombine with carriers of the opposite type in a diode's band gap. ....etc

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physics photo diode characteristics viva question with answers

This light detector is a current-to-voltage converter. The FET input op-amp prevents the loading of the photodiode and the voltage at the output is proportional to the current in the photodiode. So long as the photodiode response to the light is linear, the output voltage is proportional to the light falling on the photodiode. ....etc

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What is the effect of temperature on on p-n junction diode????? ....etc

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The diodes are classified into different types based on their working principles and characteristics. These include Generic diode, Schotty diode, Shockley diode, Constant-current diode, Zener diode, Light emitting diode, Photodiode, Tunnel diode, Varactor, Vacuum tube, Laser diode, PIN diode, Peltier diode, Gunn diode, and so on. On a special case, this article discuss about Gunn diode s working, characteristics and applications.

What is a Gunn Diode?

A Gunn Diode is considered as a type of diode even though it does not contain any typic ....etc

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