| 摘要: |
| 多端口T/R组件输出端口的噪声由各个通道共同决定，要测试单独通道的噪声系数非常困难。提出了一种基于衰减器改变的多端口TR组件单通道噪声系数测试方法，消除了其他通道的噪声影响，实现了对单独通道噪声系数的测试。通过测试一个8通道T/R组件的各个通道噪声系数，与单独通道测试结果进行了对比，两种方法测试结果最大差异为0.08 dB，验证了该方法可以很准确地测量多端口网络的单通道噪声系数。 |
| 关键词: 相控阵 T/R组件 多端口 单通道噪声系数测试 |
| DOI： |
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| 基金项目: |
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| A single-channel noise figure measurement method for multi-port T/R modules |
| YANG Shunping,DU Yan,ZHOU Taifu |
| () |
| Abstract: |
| Because multi-port T/R module output noise is composed of all noise of the channels,it′s very difficult to measure one channel′s noise figure independently.A noise figure measurement method for multi-port T/R modules is put forward．To cancel the noise of other channels,the under-test channel′s attenuation is changed twice and noise figure is measured each time.An 8-channel T/R module is tested,and there is only 0.08 dB difference between two methods. The results are compared with the reference test data to demonstrate the correctness and reliability of the method. |
| Key words: phased array T/R module multi-port single-channel noise figure measurement |
