By taking the rectangular metal patch on a printed circuit board as the radiation element and by cutting a C-shaped slot in the rectangular patch, a frequency band notch is implemented.
该天线采用印刷电路板上的矩形贴片作为辐射单元，通过在矩形贴片上开一个C形槽来实现陷波功能。
This paper designs a S-band feed system for HPM antenna, which consists of a dual-mode conical horn and a rectangular-circular mode convertor.
本文设计了一种S波段高功率微波天线的馈源系统，该系统由双模圆锥喇叭和矩-圆模式转换器两部分组成。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.4% less than that for a rectangular sampling lattice.
当连续图像信号的频带处于一个圆形区域之内时，正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13.4%。
Thirdly, a dual-mode dual-band bandpass filter with rectangular-loop perturbation and stacked structure is presented.
再次，设计实现了基于微扰小环和垂直叠放结构的微带双模双通带带通滤波器。
Thirdly, a dual-mode dual-band bandpass filter with rectangular-loop perturbation and stacked structure is presented.
再次，设计实现了基于微扰小环和垂直叠放结构的微带双模双通带带通滤波器。
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