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UWB Active Antenna for Microwave Breast Imaging Sensing Arrays

机译:用于微波乳房成像传感阵列的UWB有源天线

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摘要

An ultrawideband (UWB) active slot antenna for tissue sensing arrays is developed and measured to operate from 3 to 8 GHz. The sensing element reported here is to be used in the imaging of the breast. It integrates a low-noise amplifier (LNA) with a printed-slot antenna to achieve gain enhancement of about 20 dB. The first prototype integrates the biasing of the LNA on the same board as the antenna. The second prototype uses an external bias tee providing dc power to the LNA through the coaxial connector of the active antenna. Both prototypes achieve the expected gain enhancement in comparison with the passive antenna element.
机译:开发并测量了用于组织传感阵列的超宽带(UWB)有源缝隙天线,其工作频率为3至8 GHz。此处报告的传感元件将用于乳房成像。它集成了低噪声放大器(LNA)和印刷槽天线,以实现约20 dB的增益增强。第一个原型在天线的同一板上集成了LNA的偏置。第二个原型使用一个外部偏置三通,通过有源天线的同轴连接器为LNA提供直流电源。与无源天线元件相比,两个原型均实现了预期的增益增强。

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