In this paper, a 4 × 4 60-GHz circularly polarized (CP) magnetoelectric (ME) dipole array based on TE₃₄₀-mode substrate integrated cavity (SIC) and sequential rotation feed-network (SRFN) is proposed. The ME dipole array is constructed by 3 printed circuit board (PCB) layers with its assembled size of 21 × 23 × 2.4 mm³. The top layer is the radiation layer with 2 × 2 subarrays. The second layer includes 2 × 2 TE₃₄₀-mode SICs. The bottom layer is the substrate integrated waveguide (SIW)-SRFN. By combining ME dipole, SRFN and high-order-mode SIC techniques, a compact 4 × 4 array with wide axial-ratio (AR) and impedance bandwidths is obtained. The measured results show that the − 10-dB impedance bandwidth is 24% (54–68.7 GHz), the 3-dB AR bandwidth is 25.9% (52–67.5 GHz), the 3-dB gain bandwidth is 22.5% (54–67.5 GHz) and the peak gain is 19.4 dBic at 62 GHz. The proposed array is a good candidate for 60 GHz wireless communications with its advantages of compact size, wide impedance bandwidth, wide AR bandwidth and high gain.

本文提出了一种基于T E ₃₄₀模式衬底集成腔（SIC）和顺序旋转馈电网络（SRFN）的4×4 60 GHz圆极化（CP）磁电（ME）偶极阵列。ME偶极子阵列由3层印刷电路板（PCB）层构成，其组装尺寸为21×23×2.4 mm ³。顶层是具有2×2子阵列的辐射层。第二层包括2×2 T E ₃₄₀模式SIC。底层是衬底集成波导（SIW）-SRFN。通过将ME偶极子，SRFN和高阶模式SIC技术相结合，可以获得具有宽轴向比（AR）和阻抗带宽的紧凑型4×4阵列。测量结果表明，− 10 dB阻抗带宽为24％（54–68.7 GHz），3-dB AR带宽为25.9％（52–67.5 GHz），3-dB增益带宽为22.5％（54–5 67.5 GHz）和62 GHz时的峰值增益为19.4 dBic。所提出的阵列具有紧凑的尺寸，宽的阻抗带宽，宽的AR带宽和高增益的优点，是60 GHz无线通信的理想选择。