To meet the requirements of miniaturization, high gain and wideband of UHF antenna for aircraft SAR, the gain loss produced by narrowing back cavity of short back radiation antenna is analyzed.

针对超高频机载合成孔径雷达天线小型化、高增益和宽频带的问题，分析了短背射天线缩小背腔的增益损失。

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Electric-wall technology is a new type of microstrip antenna miniaturization technique.

电壁技术是一种新型的微带天线小型化技术。

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Microstrip antenna arrays can meet smart antenna's demands of miniaturization and low cost and will be used widely in modern communication systems.

用微带阵列实现智能天线能够满足系统小型化、造价低的要求，这在现代通信中有着广泛地应用前景。

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Considering the claims Samsung is making, it appears to me that transitioning such an antenna from a mere outdoor experiment to the point of miniaturization so that it can be used in an actual phone may be not be easily achievable.

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