针对毫米波开槽波导空间功率分配/合成器相对带宽较窄,合成路数增多时带宽锐减的缺点,提出了一种新型的拓展带宽的结构。该结构采用E面改进型T形结构成多分支网络,通过减少每个功率分配/合成器的合成路数,使其在输出更大功率的同时,带宽得到拓展。在Ka频段设计了此种结构的网络,并通过1×12阵列和2×6阵列的性能比较,发现2×6阵列的带宽几乎是1×12阵列的两倍,且具有尺寸小、合成效率高和容易散热等优点,从而验证了此种结构的可行性。 Aiming at the shortcoming that the bandwidth of power splitter / synthesizer in millimeter wave slotted waveguide is narrow and the bandwidth decreases sharply when the number of synthesis channels increases, a new structure of expanding bandwidth is proposed. The structure uses the E-plane improved T-shaped structure into a multi-branch network, by reducing the synthesis of each power splitter / synthesizer, so that it is in the output more power at the same time, the bandwidth has been expanded. The structure of the network is designed in the Ka band, and through the performance comparison of 1 × 12 array and 2 × 6 array, it is found that the bandwidth of the 2 × 6 array is almost twice that of the 1 × 12 array, and has the advantages of small size, High and easy to heat, etc., thus verifying the feasibility of such a structure.