X波段高功率微波馈源辐射总功率阵列法测量技术
X-band HPM feed total radiation power measurement using array method
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摘要: 分析了采用阵列法测量高功率微波(HPM)馈源辐射总功率的相关技术环节。仿真计算了某型X带HPM馈源辐射场分布，设计了积分法测量辐射总功率的参数，并对积分总功率与端口注入功率的关系以及积分方法引入的测量误差进行了计算。设计了由8路HPM辐射场功率密度测量系统组成阵列，对馈源辐射场功率密度进行测量，保证功率密度测量结果一致性和重复性。测量结果表明：多路测量系统测量波形相同，单路系统多次重复测量偏差在±0.1 dB内，多路测量系统对同一点辐射场功率密度测量偏差在±0.3 dB内，馈源热测E面方向图与冷测结果基本符合，积分总功率与等效辐射功率测量结果吻合较好。Abstract: The paper studied the array method for the measurement of X-Band high power microwave(HPM) feed total radiation power. The radiation field of an X-band HPM feed was simulated to determine three key parameters of surface integral method, and the measurement error caused by the integral method was estimated. An array with 8 probes was designed to enhance the power density measurement precision and stability, with each probe carefully tested and calibrated. The measurement result shows that, the pulse waveforms obtained by different probes are almost the same; the power density measurement difference of 3 shots obtained by the same probe is within ±0.1 dB; the power density measurement difference of the 8 different probes is within ±0.3 dB. Cold and hot tested patterns of the feed agree wit
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Key words:
- high power microwave /
- feed /
- total power /
- measurement /
- array method
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