In the antenna shaped-beam section, introduced narrow beam nulling and wide beam nulling.

在天线波束赋形部分，介绍了窄波束零陷和宽波束零陷。

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In this paper, principle, design and test result of MMW wide beam antenna on flight vehicle is introduced.

本文介绍一种用于飞行器上的毫米波宽波束天线的原理、设计方法和实验结果。

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A method to realize wide beam in ultra wide band by introducing a reflect structure is proposed in this paper.

本文提出了在蝶形缝隙天线后附加反射结构来实现宽波束单向辐射的方法。

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While the patient is still on the operating table, a lead disc is slipped behind the breast tissue to protect the chest cavity, and an eight inch wide electron beam focused directly on the area surrounding the tumour.

BBC: 'One stop shop' for cancer