“The external antenna on iPhone 4 is located in the stainless steel band,” reads the caption under a photo indicating where the problem exists on Apple’s page (image to the right).

“iPhone 4的外置天线设计在外壳的不锈钢圈上，”一张出现在苹果主页上显示这个问题的图片（右图）下方的说明文字。

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Recent troubles like the leak of a secret phone prototype and the antenna problems reported by some owners of the iPhone 4 have chipped away at that image somewhat.

最近绝密电话模型被泄露，iPhone 4用户举报天线有问题，这些都一定程度上的影响了苹果的保密形象。

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So, a larger aperture can be composed, and we obtain a good purpose of increasing the length of the antenna, and we obtain a better Radar image on the orientation.

这样，利用多普勒频移现象“合成”一个更大的孔径，达到“增加天线长度”的效果，提高雷达图像的方位向分辨率。

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The unit receives a video signal from analog cable or a broadcast antenna and rescales the image to be compatible with high-resolution monitors.

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