main-lobe width 主瓣宽度
db main lobe width 主瓣半功率点宽度
- db main lobe width 主瓣半功率点宽度
3 db main lobe width 主瓣半功率点宽度
According to the antenna technical specification, including gain, main lobe width, side lobe level, etc, the aperture’s distribution can be decided, and the space between each slot is decided by the input VSWR within the working bandwidth and wave-packet direction.
这类天线的设计主要是根据天线的技术指标(增益、主瓣宽度、副瓣电平等),来确定天线的口径场分布,缝隙单元间距则可以根据工作频带内的输入驻波比要求和波束指向来加以确定。
参考来源 - 波导缝隙阵列天线分析与设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The direction of acoustic beam and angular width of main lobe can be changed by properly amplitude-weighting, decreasing the frequency of impulsive signal and adjusting the interval of array elements.
通过适当的幅度加权、降低激励信号的频率、调整阵元的间距等措施可以改变辐射声束的方向和辐射主瓣的角宽。
Theoretically, a column conformal array with small size and few elements to generate a shaped beam with low side lobe and main beam with fixed width and flat top is carried out.
理论上实现了用较少的天线单元，且与小直径圆柱面共形的阵列，激励产生副瓣电平较低、主瓣有一定的宽度且顶部较平坦的波束。
At the same time under the direction of Figure lobe half-power beam width of the main requirements to determine their unit number and unit spacing.
同时根据方向图主瓣半功率波束宽度要求确定其单元数和单元间距。
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