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A High-Efficiency Ridged Magnetically Insulated Transmission Line Oscillator
- Source :
- IEEE Transactions on Electron Devices. 67:4442-4446
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- In this study, we investigate the effect of the inclusion of ridged disk vanes on the operation of a magnetically insulated transmission line oscillator (MILO), using a combination of “cold” (without electron beam) and “hot” (with electron beam) simulations. Cold simulation shows that the inclusion of ridged-disks in a ridged MILO (RMILO) enhances its slow wave structure’s (SWS’s) coupling impedance, thus improving its power efficiency. Moreover, since the ridges’ effect on frequency is weak, the MILO’s inherent tunability is maintained. In hot simulation, the RMILO obtains a 3-dB tunable frequency range of 0.96–2.18 GHz with an applied voltage of 603 kV, in contrast to the 1.04–2.01-GHz range obtained with a conventional MILO (CMILO), owing to the former’s improved power efficiency. With this voltage, the device generates the high power microwave (HPM) with a maximum output power of 7.1 GW at a frequency of 1.40 GHz, corresponding to a power efficiency of 22.6%. The maximum power efficiency of 24.5%, corresponding to a 13.5-GW output, was obtained by increasing the applied voltage to 807 kV, an increase of 20.2% compared to the power efficiency obtained with a CMILO in the same condition.
- Subjects :
- 010302 applied physics
Materials science
Maximum power principle
business.industry
01 natural sciences
Electronic, Optical and Magnetic Materials
Electric power transmission
Electricity generation
Transmission line
0103 physical sciences
Optoelectronics
Electrical and Electronic Engineering
business
Electrical impedance
Electrical efficiency
Microwave
Voltage
Subjects
Details
- ISSN :
- 15579646 and 00189383
- Volume :
- 67
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Electron Devices
- Accession number :
- edsair.doi...........0a29d5e54a0aa318338ede24db219917