In this paper, a ultrawideband antenna combined with a reconfigurable stop-band filter for medical imaging detection applications is presented. The proposed antenna provides dual-band operation at 1.8–3.2 GHz and 4–6.2 GHz, which satisfies widely the bandwidth for ISM application systems.These bands are achieved by the introduction of an open square ring on the top side and a pair of square of CSRRs on the ground, respectively. Equivalent circuit of the filter has been presented using ADS simulator. Its performance results have been compared to those obtained with CST simulator. The results of both methods show reasonably good agreement in terms of the frequency of operation and the impedance bandwidth. The study of the antenna properties is also taken into account. The resulting design has a compact configuration and enables easy control of the two desired operating frequencies. This proposed antenna is matched with \(50\Omega \) to allow an easier connection. To validate the proposed concept, a prototype was fabricated and measured. The experimental results are presented and discussed. The obtained results show a good agreement between experimental and simulation results.

本文提出了一种结合可重构阻带滤波器的超宽带天线，用于医学成像检测应用。拟议中的天线可在1.8–3.2 GHz和4–6.2 GHz的频率范围内提供双频操作，从而广泛满足ISM应用系统的带宽。这些频段是通过在顶部引入一个方形开口环和一对方形来实现的的CSRR分别在地面上。滤波器的等效电路已使用ADS仿真器给出。它的性能结果已与CST模拟器获得的结果进行了比较。两种方法的结果在工作频率和阻抗带宽方面显示出相当好的一致性。还考虑了天线性能的研究。最终的设计具有紧凑的配置，并且可以轻松控制两个所需的工作频率。建议的天线与\（50 \ Omega \）匹配，以实现更轻松的连接。为了验证所提出的概念，制造并测量了原型。提出并讨论了实验结果。所得结果表明实验结果与仿真结果吻合良好。