A 60 GHz 8 × 8 dual-polarized aperture-coupled magneto-electric (ME) dipole antenna array in low temperature co-fired ceramic (LTCC) technology is proposed. Taking advantage of the LTCC technology of high integration, the antenna array is composed of three parts, including the wideband ME dipole elements, dual-polarized strip-line series feeding network and low-loss gap waveguide (GWG) feeding network. The ME dipole antenna element is fed by aperture coupling with 45° rotation. Two separate orthogonal strip lines are located right below the aperture to realize dual polarization performance. The simulated −10 dB impedance bandwidth of the dual-polarized antenna element is 50–66.5 GHz with an isolation lower than −20 dB for two input ports. By employing the proposed radiating element, a 4 × 4 wide-band dual-polarized antenna subarray is realized by using strip-line series-feed technology. A compact hybrid low-loss feeding network is realized by combing the GWG technology with the strip-line series feed technology. For demonstration, one prototype was fabricated. The measured impedance bandwidth is 14.2% and 16.7% respectively for dual polarizations with |S₁₁| < −8 dB, and the port isolation is lower than −20 dB over the entire frequency band of interest.

中文翻译：

---

60 GHz 双极化磁电偶极子天线阵列，采用低温共烧陶瓷技术，具有混合间隙波导馈电网络

提出了一种采用低温共烧陶瓷 (LTCC) 技术的 60 GHz 8 × 8 双极化孔径耦合磁电 (ME) 偶极天线阵列。利用高集成度的LTCC技术，天线阵列由宽带ME偶极子元件、双极化带状线串联馈电网络和低损耗间隙波导（GWG）馈电网络三部分组成。ME偶极子天线元件通过45°旋转的孔径耦合馈电。两条独立的正交带线位于孔径正下方，以实现双极化性能。双极化天线元件的模拟 -10 dB 阻抗带宽为 50–66.5 GHz，两个输入端口的隔离度低于 -20 dB。通过采用所提出的辐射元件，采用带状线串馈技术实现了4×4宽带双极化天线子阵。GWG技术与带状线串联馈电技术相结合，实现了紧凑的混合低损耗馈电网络。为了演示，制造了一个原型。对于具有 | 的双极化，测得的阻抗带宽分别为 14.2% 和 16.7%。小号₁₁ | < −8 dB，并且端口隔离度在整个感兴趣的频带内低于 −20 dB。