In this paper, a low‐profile aperture‐stacked patch (LP‐ASP) antenna for breast cancer detection applications is proposed. The antenna is embodied by three substrate layers, in which one layer is applied to feed all stacks and the other two are adjoined substrates with rectangular patches, mounted on the top of the feeding layer. The feeding layer consists of a fork‐shaped strip on one side, and an H‐shaped slot attached to a cross‐shaped slot on the other side. By using the proposed feeding structure and a designed defected ground plane, an additional current path is provided which generates extra resonances and widens the impedance bandwidth from 2.5 to 15 GHz. The overall size of the antenna is 10 × 10 × 3.475 mm³, which is approximately 0.083λ × 0.083λ × 0.03λ at the antenna's lowest operating frequency. To evaluate the performance of the designed antenna in an imaging system, first, a breast model with an embedded spherical tumor (with a radius of 4 mm) is constructed. Then, a conformal array of the designed antenna with 17 elements on a cross‐arranged lattice is placed around the breast model. The quantitative metrics of the reconstructed images show that the proposed antenna can be a good candidate for the breast cancer detection applications.

中文翻译：

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低剖面孔径堆叠贴片天线，用于早期乳腺癌检测应用

本文提出了一种用于乳腺癌检测应用的低剖面孔径堆叠贴片（LP-ASP）天线。天线由三层基底层构成，其中一层被施加来馈送所有叠层，另外两层是安装在馈层顶部的带有矩形贴片的邻接基底。进料层由一侧的叉形条带和另一侧的H形槽连接到十字形槽组成。通过使用建议的馈电结构和设计有缺陷的接地层，提供了一条额外的电流路径，该路径会产生额外的谐振并将阻抗带宽从2.5 GHz扩展到15 GHz。天线的整体尺寸是10×10×3.475毫米³，大约为0.083 λ× 0.083λ× 0.03 λ在天线的最低工作频率。为了评估成像系统中设计天线的性能，首先，构建了带有嵌入式球形肿瘤（半径为4 mm）的乳房模型。然后，在乳房模型周围放置一个在交叉排列的格子上具有17个元素的设计天线的保形阵列。重建图像的定量指标表明，所提出的天线可以很好地用于乳腺癌检测应用。