Design of Partially Parallel-Feeding Double-Layer Broadband Two-Dimensional Waveguide Array Using Wall-Surrounded Slot on Stepped Narrow-Wall

摘要

The partially parallel-feeding broadband two-dimensional waveguide array is designed. The antenna is composed of double layer configuration of the parallel feeding waveguide circuit in the lower layer and traveling-wave array in the upper layer. The lower layer is designed by using the tournament parallel-feeding circuit consisting of E-plane bend and E-plane T-junction. The 32-line array was designed by using twist H-plane bend at the part connecting the lower and the upper layers. The gain of 32-line array was 34.5dBi. The bandwidth of gain higher than 30dBi was 14.9GHz.