Topic: Diode Varactor
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What Is a Varactor Diode?
Varactor diodes, also called varicaps, are semiconductor devices that behave like variable capacitors. When reverse-biased, they have a capacitance that varies with an applied voltage. They are most often used in devices that require electr... Read More »
Source: http://www.ehow.com/about_5124911_varactor-diode.html
What is varactor diode and tunnel diode?
A diode restricts the direction of movement of charge carriers. Essentially, it allows an electric current to flow in one direction, but blocks it in the opposite direction. Most modern diodes are based on semiconductor P-N junctions in whi... Read More »
Source: http://answers.yahoo.com/question/index?qid=20081103065903AA8rYkO
What is the relation of capacitance and frequency in a varactor d...
Varactor diodes are used to tune a resonant circuit. As you make the capacitance higher, you tune to a lower frequency, because the resonant frequency is given by fo = 1/sqrt(LC). Since it has square root dependence, you would have to 4X th... Read More »
Source: http://answers.yahoo.com/question/index?qid=20081001192815AAwOOFg
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Diode Varactor
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Generally, the depletion region thickness is proportional to thehttp://www.answers.com/topic/square-root of the applied voltage; and http://www.answers.com/topic/capacitanceis inversely proportional to the depletion region thickness. Thus, ...
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Source: http://wiki.answers.com/Q/What_is_the_relationship_between_capaci...
http://www.skyworksinc.com/uploads/docum… This website lists I-V relationships and other information on a varactor diode.
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Source: http://in.answers.yahoo.com/question/index?qid=20100929061215AAd3...
Hi, You have in all case inductors and some trimmer capacitances too (both are adjustable or minimum different to design into the circuit at different stages_ so you need only one control voltages/poti... K.
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Source: http://www.edaboard.com/thread170735.html
Any semiconductor diode will behave as a capacitor when reversed biased. The higher the reverse bias voltage, the lower the capacitance (it creates a depletion region, which widens with higher voltage). A varactor diode is one specially des...
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Source: http://in.answers.yahoo.com/question/index?qid=20100818043843AAsS...
