The invention discloses a charging type high-power wide-spectrum oscillator for an unmatched transmission wire by use of a forming wire. The circuit structure of the oscillator is as follows: the high-voltage input end of a low-resistance wire is connected with the high-voltage output end of a Marx generator, the high-voltage output end of the low-resistance wire is connected with the high-voltage input end of an unmatched transmission low-resistance wire through a main switch, the high-voltage output end of the unmatched transmission low-resistance wire is connected with the input end of an unmatched transmission high-resistance wire through a sharpening switch, and the output end of the unmatched transmission high-resistance wire is connected with the ground through a coupling resistor; and the high-voltage input end of the unmatched transmission low-resistance wire is connected with the ground through a short-circuit switch, and the low-voltage ends of the low-resistance wire, the unmatched transmission low-resistance wire and the unmatched transmission high-resistance wire are connected with the ground. The oscillator, compared to a conventional mode of generating a high-power wide-spectrum oscillation pulse apparatus only by use of an unmatched transmission wire, has the following advantages: the short-circuit switch is smaller in dimension than the sharpening switch, the work is more stable, and the center frequency of generated wide-spectrum oscillation is higher.

Charging type high-power wide-spectrum oscillator for unmatched transmission wire by use of forming wire

The invention discloses a C-waveband low-voltage superradiation generation device which comprises a magnet body which is a cylinder cavity, the two ends of which are provided with seal covers respectively; a backward wave tube which is arranged in the magnet body and forms a coaxial structure with the magnet body; a negative pole which is arranged in the magnet body and is arranged oppositely to the other end of the backward wave tube so as to emit electron beams to the backward wave tube; an antenna which is in seal connection with the magnet body; and a vacuum pump which is communicated with the inner portion of the device, wherein the backward wave tube is internally provided with a reflection cavity, a drifting section, a slow wave structure and a impedance conversion portion in sequence at the electron emission end along the negative pole The BWO (backward wave tube) superradiation mechanism is utilized to generate C-waveband narrow pulse wide-spectrum microwave radiation, and such microwave radiation can meet requirements of frequency spectrum coverage and long-distance radiation on the aspect of electromagnetic interference simultaneously; the size is small, which facilitates miniaturization of the device; and meanwhile, generation of the negative pole electron beams can be realized by utilizing a low voltage

C-waveband low-voltage superradiation generation device

The invention discloses a rectangular pulse generator, comprising: a rectangular pulse forming line T1, a pulse power synthesis transmission line T2 and a pulse power synthesis transmission line T3, wherein one end on the coating of the rectangular pulse forming line T1 is connected to the inner core of the pulse power synthesis transmission line T2, the other end of the rectangular pulse forming line T1 is connected to the inner core of the pulse power synthesis transmission line T3, the inner core of the other end of the pulse power synthesis transmission line T2 is connected to the coating of the other end of the pulse power synthesis transmission line T3, and the inner core of the end connected with the pulse power synthesis transmission line T2 of the pulse power synthesis transmission line T3 is connected with an output load; and the rectangular pulse generator disclosed by the invention improves the performance of the existing rectangular pulse generator with a narrow pulse width, and a simple circuit structure improves the reliability of the generator. The rectangular pulse generator can be widely used in micro electrochemical machining, electrosparking and other fine processing, ultra radiation and laser driving systems and other fields.

Rectangular pulse generator

The invention provides a calibration device and method for a fast pulse measurement probe based on a pulse current source. The method calibrates the sensitivity and frequency response of the pulse measurement probe. The device is very important for the stable and safe operation of a pulse power device. The calibration device comprises a primary pulse source, a pulse forming line, a pulse forming main switch, a pulse transmission line, a calibration chamber, and a matching load which are sequentially connected. The matching load comprises a high voltage resistor, a low voltage resistor, and a matching load inner ring, a matching load intermediate ring, and a matching load outer ring which are sequentially disposed coaxially from the inside to the outside. The high voltage resistor is disposed between the matching load inner ring and the matching load intermediate ring, and is electrically connected to the matching load inner ring and the matching load intermediate ring respectively. Thelow voltage resistor is disposed between the matching load intermediate ring and the matched load outer ring, and is electrically connected to the matching load intermediate ring and the matching load outer ring respectively. The matching load outer ring is grounded. The matching load inner ring is electrically connected to the pulse transmission line.

Calibration device and method for fast pulse measurement probe based on pulse current source

The invention discloses a disc-type binary compact Marx generator. According to the disc-type binary compact Marx generator, a first semicircular capacitor group and a second semicircular capacitor group form a capacitor disc; the capacitor disc is in the shape of a ring; a switch cavity is formed in the middle of the ring, and the central point of the switch cavity is superposed with that of the capacitor disc; a spark gap switch is arranged in the switch cavity; charge inductors comprise a positive charge inductor and a negative charge inductor; the positive charge inductor and the negative charge inductor are symmetrically distributed along the diameter of the switch cavity; a load resistor is arranged in a gap between the first semicircular capacitor group and the second semicircular capacitor group; the charge inductors are electrically connected with the capacitor disc; the both ends of the spark gap switch are electrically connected with the first semicircular capacitor group and the second semicircular capacitor group respectively; one end of the load resistor is electrically connected with the output end of the capacitor disc, and the other end of the load resistor is grounded. The disc-type binary compact Marx generator realizes the advantages of flexible and convenient capacitance value selection, and compact structure.

Disc-type binary compact Marx generator

The utility model discloses a disk-binary-type compact Marx generator A first semicircular capacitor set and a second semicircular capacitor set form a capacitor disk The capacitor disk is in circular ring shape A switch chamber is arranged at the middle of the circular ring, and the central point of the switch chamber is superposed with the central point of the capacitor disk Spark gap switches are arranged in the switch chamber Charging inductors include positive and negative charging inductors The positive and negative charging inductors are symmetrically distributed with respect to the diameter of the switch chamber A load resistor is arranged in the gap between the first semicircular capacitor set and the second semicircular capacitor set The charging inductors are electrically connected with the capacitor disk Two ends of each spark gap switch are respectively and electrically connected with the first semicircular capacitor set and the second semicircular capacitor set One end of the load resistor is electrically connected with an output end of the capacitor disk, and the other end of the load resistor is grounded The disk-binary-type compact Marx generator has the advantages that capacitance values can be flexibly and conveniently selected, and the structure is compact

Disk-binary-type compact Marx generator

The utility model discloses a disk-quaternary-type compact Marx generator. A first capacitor set, a second capacitor set, a third capacitor set and a fourth capacitor set form a capacitor disk. The capacitor disk is in circular ring shape. A switch chamber is arranged in the circular ring. A first spark gap switch and a second spark gap switch are respectively arranged in the switch chamber. The number of charging inductors is four. The four paths of charging inductors are distributed in a cross shape. A load resistor is arranged in the gap between two adjacent capacitor sets. The charging inductors are electrically connected with the capacitor disk. Two ends of the first spark gap switch are respectively and electrically connected with the first capacitor set and the second capacitor set. Two ends of the second spark gap switch are respectively and electrically connected with the third capacitor set and the fourth capacitor set. One end of the load resistor is electrically connected with an output end of the capacitor disk, and the other end of the load resistor is grounded. The disk-quaternary-type compact Marx generator has the advantages that capacitance values can be flexibly and conveniently selected, and the structure is compact.

Disk-quaternary-type compact Marx generator

The invention discloses an ultra-wide spectrum high-power four-pulse-string generating device. The ultra-wide spectrum high-power four-pulse-string generating device is characterized by comprising four sections of forming lines which are connected together in series through annular switches, each forming line is connected with an isolation inductor in series to be charged, and the four sections of forming lines are connected in series into a whole; the output ends of the forming lines are connected with matching transmission lines, and the transmission lines and the forming lines are connected together through the annular switches. The forming lines of the device are simple in structure and can be combined at will to form the pulse string device with the pulse number smaller than or equal to four. The peak power of the pulse string generated by the device is high and can reach the GW level; the interval between generated pulses is shorter than 10 ns, and the repeat frequency of generating the pulses can be adjusted within a certain range by adjusting the gaps of the switches and the connecting time of an air pressure control switch.

Wu Chaoyang

Papers

Disk-binary-type compact Marx generator

Disk-quaternary-type compact Marx generator

Charging type high-power wide-spectrum oscillator for unmatched transmission wire by use of forming wire

C-waveband low-voltage superradiation generation device

Ultra-wide spectrum high-power four-pulse-string generating device