THz spectrum is one of the safest areas of light for the body which can be considered in biomedical sensing applications in the human body and can be utilized for high sensitivity detection. In this paper, a THz antenna with a single negative (SNG) load is developed for early cancer detection application. The SNG load is useful to increase the gain and efficiency of the antenna. The primary antenna has a circular slot on the ground plane. Metamaterial element is placed on the cylindrical dielectric. The total size of the antenna is 400 × 400 μm² and the loss-less quartz substrate is used to design the proposed antenna. In addition, the SNG load provides dual-band characteristics, and the proposed antenna covers 0.85 and 1 THz with high directivity and efficiency which is more than 90%. The achieved results proved that the antenna has higher sensitivity at a lower frequency. Moreover, we showed the proposed dual-band antenna can be used to increase the sensing accuracy of the device to detect the progress of cancer in a specific sample.

太赫兹光谱是人体最安全的光区域之一，可用于人体生物医学传感应用，可用于高灵敏度检测。在本文中，为早期癌症检测应用开发了具有单个负 (SNG) 负载的太赫兹天线。SNG 负载有助于提高天线的增益和效率。主天线在接地平面上有一个圆形槽。超材料元件放置在圆柱形电介质上。天线总尺寸为400 × 400 μm ²并且使用无损石英基板来设计所提出的天线。此外，SNG 负载提供双频特性，所提出的天线覆盖 0.85 和 1 THz，具有超过 90% 的高方向性和效率。取得的结果证明该天线在较低频率下具有较高的灵敏度。此外，我们展示了所提出的双频天线可用于提高设备的传感精度，以检测特定样本中癌症的进展。