A Repetitive Low Impedance High Power Microwave Driver
A low impedance high power microwave (HPM) driver is designed, which can be used in studying multi-gigawatt HPM devices such as the magnetically insulated transmission line oscillator (MILO), based on a helical pulse forming line (PFL) and the Tesla pulse transformer technology. The co-axial PFL is...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/11/5/784 |
| _version_ | 1797475337965142016 |
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| author | Hanwu Yang Zicheng Zhang Jingming Gao Tao Xun Song Li |
| author_facet | Hanwu Yang Zicheng Zhang Jingming Gao Tao Xun Song Li |
| author_sort | Hanwu Yang |
| collection | DOAJ |
| description | A low impedance high power microwave (HPM) driver is designed, which can be used in studying multi-gigawatt HPM devices such as the magnetically insulated transmission line oscillator (MILO), based on a helical pulse forming line (PFL) and the Tesla pulse transformer technology. The co-axial PFL is insulated by ethanol–water mixture, whose dielectric constant can be adjusted; and the helical line increases the output pulse width as well as the impedance to make a better match with the load. By the optimal combination of PFL charging voltage and output switch working voltage, the reliability of the PFL can be improved. The Tesla transformer has partial magnetic cores to increase the coupling coefficient and is connected like an autotransformer to increase the voltage step-up ratio. The primary capacitor of the transformer is charged by a high voltage constant current power supply and discharged by a triggered switch. A transmission line is installed between the PFL and the HPM load, to further increase the load voltage. A ceramic disk vacuum interface is used for improving the vacuum of the HPM tube. The experiments show that the driver can operate at 30 GW peak power, 75 ns pulse width and 5 Hz repetition rate. |
| first_indexed | 2024-03-09T20:42:45Z |
| format | Article |
| id | doaj.art-63f7b22be2e7410ea8ea62dc43bf8c83 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T20:42:45Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-63f7b22be2e7410ea8ea62dc43bf8c832023-11-23T22:53:55ZengMDPI AGElectronics2079-92922022-03-0111578410.3390/electronics11050784A Repetitive Low Impedance High Power Microwave DriverHanwu Yang0Zicheng Zhang1Jingming Gao2Tao Xun3Song Li4College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, ChinaA low impedance high power microwave (HPM) driver is designed, which can be used in studying multi-gigawatt HPM devices such as the magnetically insulated transmission line oscillator (MILO), based on a helical pulse forming line (PFL) and the Tesla pulse transformer technology. The co-axial PFL is insulated by ethanol–water mixture, whose dielectric constant can be adjusted; and the helical line increases the output pulse width as well as the impedance to make a better match with the load. By the optimal combination of PFL charging voltage and output switch working voltage, the reliability of the PFL can be improved. The Tesla transformer has partial magnetic cores to increase the coupling coefficient and is connected like an autotransformer to increase the voltage step-up ratio. The primary capacitor of the transformer is charged by a high voltage constant current power supply and discharged by a triggered switch. A transmission line is installed between the PFL and the HPM load, to further increase the load voltage. A ceramic disk vacuum interface is used for improving the vacuum of the HPM tube. The experiments show that the driver can operate at 30 GW peak power, 75 ns pulse width and 5 Hz repetition rate.https://www.mdpi.com/2079-9292/11/5/784pulsed powerpulse forming lineTesla transformerrepetitive operationhigh power microwaves |
| spellingShingle | Hanwu Yang Zicheng Zhang Jingming Gao Tao Xun Song Li A Repetitive Low Impedance High Power Microwave Driver Electronics pulsed power pulse forming line Tesla transformer repetitive operation high power microwaves |
| title | A Repetitive Low Impedance High Power Microwave Driver |
| title_full | A Repetitive Low Impedance High Power Microwave Driver |
| title_fullStr | A Repetitive Low Impedance High Power Microwave Driver |
| title_full_unstemmed | A Repetitive Low Impedance High Power Microwave Driver |
| title_short | A Repetitive Low Impedance High Power Microwave Driver |
| title_sort | repetitive low impedance high power microwave driver |
| topic | pulsed power pulse forming line Tesla transformer repetitive operation high power microwaves |
| url | https://www.mdpi.com/2079-9292/11/5/784 |
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