学术
摘 要:
提出了用等离子体防护高功率微波破坏电子设备的方法。建立了“介质层-等离子体层-介质层-等离子体层”的反射／吸收模型．其中两层均匀非磁化等离子体厚度各为50mm，等离子体频率为30GHz，等离子碰撞频率为70GHz。计算了微波的透射功率、防护结构的最小防护距离。计算结果表明：对功率10GW、脉冲宽度100ns、天线100m^2（效率50％）的微波源产生的微波，频率小于30GHz时，将被防护装置反射；频率为31～80GHz时，防护结构的最小防护距离约为5km。[著者文摘]
文章出处:
《核聚变与等离子体物理》-2008年28卷1期 -90-93页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
0254-6086（2008）01-0090-04
Protection against high power microwave using plasma
YANG Geng, TAN Ji-chun, SHENG Ding-yi, YANG Yu-chuan （Science college, National University of Defense Technology, Changsha 410073）
Abstract:
Protection against high power microwave using plasma was proposed. A reflection/absorption sandwich model of ＂medium slab-plasma slab-medium slab-plasma slab＂ was established, where the thickness for the un-magnetized uniform plasma is 50mm, the plasma frequency 30GHz, and collision frequency 70GHz. Then the transmitted power of electromagnetic wave and the minimal protecting-distance of protector were calculated. The results show that for a microwave source with 10GW power, 100ns pulse width, 100m^2 antenna area （with efficiency of 50%）, the emitted microwave will be reflected when the frequency is less than 30GHz; or the minimal protecting-distance of protector is about 5km when the frequency is within 31 - 80GHz.[著者文摘]
Key words:
HPM; Plasma; Transmitted power; Protection
基金资助:
武器装备预研基金资助项目（51421-KG0152）
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