针对新一代毫米波相控阵天线对轻薄小T/R模组技术的迫切需求, 该文设计了一种基于高温共烧陶瓷(HTCC)工艺的Ka波段短砖式T/R模组, 该模组在36 mm×33 mm×3 mm尺寸下实现了8个收发通道的高密度集成, 具备信号放大、功率分配与合成及幅相控制的功能。通过研究在HTCC基板上的毫米波信号平面过渡与屏蔽结构, 实现了Ka波段毫米波信号在高密度分腔内的稳定传输及通道间高幅相一致性。结果表明, 该T/R模组接收增益≥22 dB, 噪声系数≤5.1 dB, 发射输出功率≥23 dBm, 能够满足新一代通信、雷达等设备有源相控阵天线应用需求。

To meet the urgent requirement of new-generation millimeter phased array antenna for the light, thin and small T/R module technology, this paper proposes a Ka-band short-brick T/R module based on the HTCC process, which realizes high-density integration of 8 Tx/Rx channels with a size of 36 mm×33 mm×3 mm. The T/R module has the functions of signal amplification, power dividing and synthesis, and amplitude and phase control. Through the planar transition and shielding design of microwave signals in HTCC substrate, the stable transmission of Ka-band microwave signals in high-density sub-cavities and the good amplitude and phase consistency between different channels are realized. The test results show that the T/R module has a receiving gain of ≥22 dB, a noise figure of ≤5.1 dB, and a transmit output power of ≥23 dBm, which can meet the application requirements of active phased array antennas for the new-generation communication, radar and other equipments.