Circuit for generating a single high voltage subnanosecond pulse from a step recovery diode专利检索-阶跃恢复二极管二极管真空电子管电子零件及设备专利检索查询-专利查询网

Circuit for generating a single high voltage subnanosecond pulse from a step recovery diode

阅读：905发布：2020-08-08

专利汇可以提供Circuit for generating a single high voltage subnanosecond pulse from a step recovery diode专利检索，专利查询，专利分析的服务。并且A series connected electronic circuit including in combination a trigger generator, an impulse generator, a filter circuit having an inductance L, a step recovery diode having a forward resistance RF and a reverse capacitance CR and an optimal bias circuit coupled to the step recovery diode. The trigger generator produces a train of pulses having a relatively long time interval, T, between each pulse; these pulses are then coupled to the impulse generator which produces an impulse having a Fourier component predominant at a frequency omega in response to each trigger pulse. The filter circuit converts each impulse into a damped sine wave having an angular frequency omega and a damping constant delta RF/2L. The sine wave is coupled to the step recovery diode which generates a single high voltage subnanosecond pulse having a half period, tp/ pi square root LCR in response to each damped sine wave.，下面是Circuit for generating a single high voltage subnanosecond pulse from a step recovery diode专利的具体信息内容。

权利要求

1. A pulse generator circuit comprising a source of trigger pulses for producing a plurality of pulses at a specific repetition rate, impulse generator means coupled to said source of trigger pulses for producing output pulses at the same repetition rate as said trigger pulses, filter means having a value of inductance L coupled to said impulse generator means for converting each of said output pulses into a damped sine wave oscillation having predetermined angular frequency, omega , and a predetermined damping constant, delta a step recovery diode having a reverse capacitance CR and a forward resistance RF such that: delta RF/2L, said diode being coupled to said filter means, and bias control circuit means coupled to said step recovery diode for controlling the conduction of said step recovery diode whereby only a single subnanosecond pulse having a half period, tp/ pi square root LCR, is produced by said step recovery diode in response to said damped wave oscillation.

2. A pulse generator circuit as recited in claim 1 in which said impulse generator means includes a step function generator series coupled to a differentiator circuit for producing output pulses having a pulse width C pi / omega .

3. A pulse generator circuit as recited in claim 1 in which said impulse generator includes a common emitter mode transistor operating in the avalanche region of the transistor characteristic.

4. A pulse generator circuit as recited in claim 3 in which said impulse generator includes a resistive-capacitive circuit means for providing a charging time constant which is long with respect to the time period between said output pulses.

5. A pulse generator circuit as recited in claim 1 in which said filter means includes a pair of cascaded half-T sections in which each section comprises an inductor and a capacitor in combination.

6. A pulse generator circuit as recited in claim 1 in which said bias control circuit means comprises a passive circuit for controlling the conduction of said step recovery diode whereby said single subnanosecond pulse is produced by said recovery diode during the second half cycle of said damped sine wave oscillation.

7. A bias control circuit as recited in claim 6 which includes an inductor in series with the parallel combination of a capacitor and a resistor.

8. A pulse generator circuit as recited in claim 1 in which said bias control circuit means includes a source of electrical power for applying a charging current to said step recovery diode prior to the application of said damped sine wave oscillation.

9. A pulse generator circUit as recited in claim 8 in which said bias control circuit means further includes means for controlling the conduction of said step recovery diode whereby a single subnanosecond pulse is produced during the conduction of the first half cycle of said damped sine wave oscillation.

10. A pulse generator circuit as recited in claim 9 in which said bias control circuit means includes a parallel combination of a variable resistor, a fixed resistor and a d.c. power source.

11. A pulse generator circuit as recited in claim 9 in which said bias control circuit means includes a series combination of an inductor, a resistor and a d.c. power source.

12. A method for producing a subnanosecond pulse comprising the steps of applying a plurality of trigger pulses at a specific repetition rate from a trigger pulse generator to an impulse generator, producing a plurality of impulse output pulses at the same repetition rate as said trigger pulses, applying said impulse output pulses to a filter having an inductance L, producing a damped sine wave oscillation having a predetermined angular frequency, omega and a predetermined damping constant, delta applying said damped sine wave oscillation to a step recovery diode having a reverse capacitance CR and a forward resistance RF such that the damping constant delta is a function of the reverse capacitance CR and the forward resistance RF in accordance with the relation: delta RF/2L, and producing a single subnanosecond output pulse having a half period, tp/ pi Square Root LCR in response to said applied damped sine wave.

13. A method for producing a subnanosecond pulse as recited in claim 12 further comprising the step of applying a charging current to said step recovery diode prior to the application of said damped sine wave oscillation.

14. A method for producing a subnanosecond baseband pulse as recited in claim 13 further comprising the step of controlling the conduction of said step recovery diode whereby said single subnanosecond pulse is produced during the conduction of the first half cycle of said damped sine wave oscillation.

15. A method for producing a subnanosecond pulse as recited in claim 12 further comprising the step of controlling said step recovery diode whereby said single subnanosecond pulse is produced by said step recovery diode during the conduction of the second half cycle of said damped sine wave oscillation.

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Circuit for generating a single high voltage subnanosecond pulse from a step recovery diode

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