In this paper, two different millimeter-wave printed dipole array (PDA) antenna prototypes for high-gain applications are proposed. The antenna prototypes are designed, simulated, fabricated, and experimentally tested. A good agreement between the simulated and measured results is achieved. Calculated results show that those antenna prototypes can operate from 51.5 to 74 GHz with a fractional impedance bandwidth of 35.9%. Due to limitations in the measurement facilities, the antenna return loss is measured up to 65 GHz only. At 60 GHz, the two antenna prototypes have maximum realized peak gain of 14.0 dBi and 23.29 dBi, respectively, with a gain variation of 3 dBi and 1.4 dBi, respectively, across the whole frequency band of interest with stable radiation patterns over the operating band. The proposed PDA antenna prototypes achieve good side lobe suppression, excellent front-to-back ratio in both E- and H-planes and low cross-polarization levels over the entire frequency range.

中文翻译：

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毫米波印刷偶极子阵列天线装有低成本高增益介质透镜

本文针对高增益应用，提出了两种不同的毫米波印刷偶极子阵列（PDA）天线原型。天线原型经过设计，仿真，制造和实验测试。在模拟结果和测量结果之间取得了良好的一致性。计算结果表明，这些天线原型可以在51.5至74 GHz的频率范围内工作，阻抗带宽的分数为35.9％。由于测量设备的限制，只能在高达65 GHz的频率下测量天线回波损耗。在60 GHz频率下，这两个天线原型的最大实现峰值增益分别为14.0 dBi和23.29 dBi，在整个感兴趣频带上的增益变化分别为3 dBi和1.4 dBi，并且在工作频带上具有稳定的辐射方向图。E和H平面以及整个频率范围内的低交叉极化电平。