It is shown that doping design for the device's material structure has evolved into band engineering design.
这种差异表明，在器件的材料结构设计上已从掺杂设计步入到了能带工程设计。
The curves of stop band width vs. geometric and constitutive parameters were provided as the optimal structure data for engineering design.
提供了阻带宽度与各结构、材料参数的关系曲线，为工程设计提供了优选结构的参考数据。
Therefore , the subject is to study the design theory and engineering realization of the low phase-noise phase locked source in microwave band.
在这样的背景下，本课题对低相位噪声微波锁相源的设计理论和工程实践进行了研究。
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