High-power microwave bandwidth broadening by air breakdown

1992 ◽  
Author(s):  
David J. Mayhall ◽  
Jick H. Yee ◽  
Raymond A. Alvarez, Jr.
Keyword(s):  
High Power ◽  
High Power Microwave ◽  
Air Breakdown ◽  
Bandwidth Broadening ◽  
Power Microwave

Limiting Power of High Power Microwave Pulses from Aperture

2011 ◽  
Vol 383-390 ◽  
pp. 638-642
Author(s):  
Jian Hua Zhang ◽  
Wei Hu
Keyword(s):  
Power Density ◽  
High Power ◽  
Equivalence Principle ◽  
Pulsed Power ◽  
Maximum Power ◽  
Center Frequency ◽  
Aperture Antenna ◽  
High Power Microwave ◽  
Air Breakdown ◽  
Power Microwave

Based on the field equivalence principle and the potential function, the axial normalized pulsed power density of the microwave radiated from the circle aperture antenna was deduced. The power density in the Fresnel region was calculated for uniform aperture and tapered one. The relations between the aperture antenna’s maximum power and the parameters including pulse width, aperture radius and the center frequency were analyzed. The formula of the antenna’s maximum power limited by the air breakdown due to high power microwave is presented.

High-power microwave(HPM) air breakdown

1997 ◽  
Author(s):  
Guozhi Liu ◽  
Jingyue Liu ◽  
Wenhua Huang ◽  
Jinshan Zhou ◽  
Xiaoxin Song
Keyword(s):  
High Power ◽  
High Power Microwave ◽  
Air Breakdown ◽  
Power Microwave

A study of high power microwave air breakdown

2000 ◽  
Vol 9 (10) ◽  
pp. 757-763 ◽  
Author(s):  
Liu Guo-zhi ◽  
Liu Jing-yue ◽  
Huang Wen-hua ◽  
Zhou Jin-shan ◽  
Song Xiao-xin ◽  
...  
Keyword(s):  
High Power ◽  
High Power Microwave ◽  
Air Breakdown ◽  
Power Microwave

Spectral breaking of high-power microwave pulses propagating in a self-induced plasma

1998 ◽  
Vol 59 (2) ◽  
pp. 315-332 ◽  
Author(s):  
EDWARD KORETZKY ◽  
SPENCER P. KUO ◽  
JOHN KIM
Keyword(s):  
Theoretical Prediction ◽  
High Power ◽  
Ionization Rate ◽  
Incident Pulse ◽  
High Power Microwave ◽  
Centre Frequency ◽  
Spectral Peaks ◽  
Air Breakdown ◽  
Two Peaks ◽  
Power Microwave

An experiment is conducted to confirm the theoretical prediction that a rapidly generated lossy plasma can cause spectral breaking and frequency shift of a high-power microwave pulse. Spectral breaking is the transformation or breaking of a single dominant spectral peak associated with an incident pulse into two spectral peaks. The experiment is conducted by comparing the frequency spectrum of an incident pulse with the spectrum of the pulse transmitted through a self-induced air-breakdown environment. It is shown that as the ionization rate becomes too high, the spectrum of the transmitted pulse breaks up into two peaks: one has an upshifted centre frequency, and the other has a downshifted centre frequency. The results show that the amount of frequency upshift is correlated with the ionization rate, whereas the amount of frequency downshift is correlated with the energy losses from the pulse in the self-generated plasma. These experimental results agree with the theoretical prediction and a numerical simulation, which are also presented.

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