一种毫米波超宽带扇形波束磁电偶极子天线的设计

In this paper, a millimeter wave ultra wideband sector beam magnetoelectric dipole antenna is studied. Its highlight is the design of T-shaped feed structure and the bending treatment of rectangular patch of the electric dipole, which expands the impedance bandwidth and beam width. The simulation analysis shows that when the center frequency is 32ghz, the reflection coefficient of the studied antenna is less than -10db in the range of 24.06ghz-42.61ghz, which is as high as 55.6% of the relative bandwidth. In the working frequency band, the H-plane beam width is maintained in the range of 110 -130 , and the E-plane beam width is in the range of 35 -50 , which conforms to the characteristics of fan-shaped beam. At the same time, in the working frequency band, it has certain gain performance, which is basically maintained in the range of 4db-6db. The millimeter wave ultra wideband sector beam magnetoelectric dipole antenna will become an ideal option in the corresponding field.