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Modularized solid state nanosecond pulse generator based on PCB Blumlein transmission line and transmission line transformer

A technology of transmission line transformers and nanosecond pulses, which is applied in the direction of electric pulse generator circuits and energy storage components to generate pulses, etc. It can solve the problems of uncompact generators, large input and output impedance ratios, and large output impedances.

Active Publication Date: 2017-07-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of large input and output impedance ratio, large output impedance, and uncompact generator

Method used

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  • Modularized solid state nanosecond pulse generator based on PCB Blumlein transmission line and transmission line transformer
  • Modularized solid state nanosecond pulse generator based on PCB Blumlein transmission line and transmission line transformer
  • Modularized solid state nanosecond pulse generator based on PCB Blumlein transmission line and transmission line transformer

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Experimental program
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Effect test

Embodiment 1

[0060] A modular solid-state nanosecond pulse generator based on PCB Blumlein transmission lines and PCB transmission line transformers:

[0061] Such as figure 1 As shown, the single-stage generator disclosed by the present invention includes: a single-stage Blumlein transmission line and a secondary transmission line transformer, and a MOS tube switch circuit S 1 , MOS tube switch circuit S 2 , high voltage DC power supply and charging resistor R.

[0062] The single-stage Blumlein transmission line consists of a microstrip transmission line T 1 and the microstrip transmission line T 2 composition. The secondary transmission line transformer consists of a microstrip transmission line t 1 and the microstrip transmission line t 2 composition.

[0063] The microstrip transmission line T 1 The two ends of the wire are respectively marked as the A end and the a end, the two ends of the metal wire are respectively marked as the AJ end and the aj end, and the two ends of th...

Embodiment 2

[0102] Such as figure 2 As shown, the n-stage generator disclosed in the present invention includes: n single-stage Blumlein transmission lines and n secondary transmission line transformers, and a MOS tube switching circuit S 1i , MOS tube switch circuit S 2i , high voltage DC power supply and charging resistor R i . n is greater than or equal to 2 of natural numbers. i=1, 2...n.

[0103] The i-th single-stage Blumlein transmission line consists of a microstrip transmission line T 1i and the microstrip transmission line T 2i composition. The i-th secondary transmission line transformer consists of a microstrip transmission line t 1i and the microstrip transmission line t 2i composition.

[0104] The microstrip transmission line T 1i Denote the two ends of A i end and a i end, and the two ends of the metal wire are respectively marked as AJ i end and aj i terminal, and the two ends of the grounding plate are marked as AB i end and ab i end.

[0105] The micr...

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Abstract

The invention discloses a modularized solid state nanosecond pulse generator structure based on a PCB Blumlein transmission line and a transmission line transformer. The generator is combined with the characteristics that the Blumlein transmission line is liable to form a high-frequency nanosecond narrow pulse and the transmission line transformer is good in high-frequency characteristics. The generator employs a modularized structure design, and each module generates a primary pulse through Blumlein and the primary pulse is amplified and outputted to a load. A plurality of modules are in cascading connection for output, thereby increasing the voltage amplification factor, and increasing the output power. Meanwhile, because the modularized design is employed, the impedance transformation ratio of the transmission line transformer is also reduced, and the generator is more suitable for a small-impedance load. A microstrip line is used in the design for the design of a transmission line, and the impedance matching design can be carried out according to the size of a load. Meanwhile, the size of the generator is greatly reduced, and the compact design is achieved. Meanwhile, the generator employs an MOS tube as a switch, thereby facilitating the control of the generator, and achieving the convenient adjustment of the amplitude value and frequency.

Description

technical field [0001] The invention relates to the field of bio-electromagnetic technology, in particular to a solid-state nanosecond pulse generator. Background technique [0002] Pulsed power technology has been widely used in medicine, military, materials, environment, etc. Among them, nanosecond pulsed electric field therapy for tumors has become a new research hotspot. Studies have found that under the action of microsecond pulsed electric fields, reversible or irreversible electroporation will occur on the cell membrane of tumor cells, which can be combined with drugs or directly kill tumor cells. When the pulse width is reduced to the nanosecond level and the field strength is increased to MV / m, the cell biological effect produced by the pulsed electric field is completely different from the perforation effect of the subtle pulse. Under the action of the nanosecond pulsed electric field, it will damage the organelle structure Cells can be affected without large perf...

Claims

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Application Information

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IPC IPC(8): H03K3/57
Inventor 米彦卞昌浩万佳仑彭文成李盼姚陈果李成祥
Owner CHONGQING UNIV
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