X波段3 GW高功率微波辐射喇叭的设计
Design of X-band 3 GW multimode aperture
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摘要: 依据数值模拟结果研制了一套X波段多模微波喇叭，采用3次变张角喇叭结构，设计要求辐射功率大于3 GW，E面和H面方向图在10 dB范围内等化度良好，10 dB波束宽度为40°。近场冷测结果表明，H面10 dB波束宽度为43°，E面10 dB波束宽度为40°。远场热测结果表明，H面10 dB波束宽度为40°，E面10 dB波束宽度为41°，在初步测试中，通过对比在线测量结果和辐射场测量结果，证明研制的喇叭输出功率达1.3 GW时不会出现击穿现象。Abstract: An X-band multimode conical horn has been designed with three sections of varied flare angles. The results obtained by experiment measurements are in good agreement with the simulation results. E and H patterns of the conical horn are well equal in the 10 dB regime. The simulation results show that the 10 dB widths of E and H patterns are about 40°. The high power microwave(HPM) experiment results show that the 10 dB width of E pattern is 40°, and the 10 dB width of H pattern is 43°.The conical horn’s power capacity reaches 3 GW in the simulation. In HPM experiment, when the power reaches 1.3 GW,no breakdown phenomena appear.
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Key words:
- high power microwave /
- variable flare angle multimode horn /
- power capability /
- pattern
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