The paper proposes a fish hook shaped dipole antenna with wide bandwidth and high gain which operates in mm wave frequency band. The antenna features corrugated substrate and defected ground structure to suppress surface waves. The proposed antenna provides improved gain as well as better impedance matching. Defected ground structure consists of unique rectangular dumbbell shaped structure with two embedded inner rings. Simulated bandwidth and gain of the proposed antenna are 32 GHz and 6.39 dBi respectively. Antenna resonates at around 139 GHz. 3 dB beam-width of the antenna is 85.3 degree. It offers an impedance bandwidth of 23% with 98.5% radiation efficiency (simulated). An equivalent circuit model has also been proposed which matches very closely with that of the simulated result. The deviation is around 2%. This reported antenna also has a very low profile of (0.42 λ₀ × 0.51 λ₀ × 0.07 λ₀). Parametric analysis has also been carried out to investigate the effects of various geometrical parameters on the performance of antenna. Dipole antenna provides an added degree of freedom to integrate it with one sided PCB. Compared to similar antennas, the proposed antenna represents simple design and, it is readily suited for various mm-wave system-on-chip applications due to its silicon substrate.

提出了一种工作在毫米波频段的宽带宽、高增益的鱼钩形偶极子天线。该天线采用波纹基板和有缺陷的接地结构来抑制表面波。所提出的天线提供了改进的增益以及更好的阻抗匹配。缺陷地面结构由独特的矩形哑铃形结构组成，带有两个嵌入的内环。建议天线的模拟带宽和增益分别为 32 GHz 和 6.39 dBi。天线的谐振频率约为 139 GHz。天线的 3 dB 波束宽度为 85.3 度。它提供 23% 的阻抗带宽和 98.5% 的辐射效率（模拟）。还提出了一个与仿真结果非常匹配的等效电路模型。偏差约为 2%。₀  × 0.51 λ ₀  × 0.07 λ ₀ )。还进行了参数分析以研究各种几何参数对天线性能的影响。偶极天线为将其与单面 PCB 集成提供了更大的自由度。与类似天线相比，所提出的天线设计简单，并且由于其硅衬底，它很容易适用于各种毫米波片上系统应用。