A novel millimeter-wave (mm-Wave) binary coding antenna with broadband, dual-polarization, and wide beamwidth is proposed, and its broad-angle scanning array is also studied. The element employs the stacked patches, where the optimal middle parasitic patch and top driven patch are introduced to broaden the bandwidth and beamwidth. The driven and parasitic patches are realized by series of small units optimized by binary code. The measured results for the proposed antenna prototype agree well with the simulated ones, showing a wide impedance bandwidth and good port isolation from 21.8 to 33.2 GHz (FBW = 41.5%). The measured half-power beamwidth is between 128$^{\circ }$ and 157$^{\circ }$ over the operating bandwidth. The element was then extended to an eight-element phased array. The measured results demonstrate that the array with a broad scanning angle more than 100$^{\circ }$ over the available band can be achieved.

中文翻译：

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用于毫米波应用的宽波束宽带双极化二进制编码天线及其阵列

提出了一种具有宽带、双极化、宽波束宽度的新型毫米波（mm-Wave）二进制编码天线，并对其广角扫描阵列进行了研究。该元件采用堆叠贴片，其中引入了最佳中间寄生贴片和顶部驱动贴片以加宽带宽和波束宽度。驱动贴片和寄生贴片由一系列经过二进制代码优化的小单元实现。建议天线原型的测量结果与模拟结果非常吻合，显示出从 21.8 到 33.2 GHz (FBW = 41.5%) 的宽阻抗带宽和良好的端口隔离。测得的半功率波束宽度在 128$^{\circ }$ 和 157$^{\circ }$超过工作带宽。然后将该元件扩展为八元件相控阵。测量结果表明，具有大于 100 的宽扫描角的阵列$^{\circ }$ 在可用频段上可以实现。