一种基于微带与槽线过渡结构的超宽带功分器

Design of a UWB Power Divider Based on Microstrip/Slot-line Transition Structure

提出了一种基于微带与槽线过渡结构的超宽带180°型3 dB功分器,采用扇形过渡结构替代传统的圆形过渡结构,拓展了功分器的工作带宽.该功分器仿真和测试结果吻合良好,在3.1～10.6 GHz频带内实现了插入损耗小于1.5 dB,两输出口的幅度误差小于0.8 dB,相位误差小于1°,输入端口反射系数小于-12 dB.

This paper present an ultra-wide-band 180° power divider based on transition between microstrip and slot-line to achieve ultra-wideband 3 dB power distribution.In order to expand the bandwidth of the power divider,the fan-shaped transition structure is used in this workin instead of the traditional round transition structure.The simulation results and the measurement results are agreed well.The insertion loss of less than 1.5 dB at the frequency range of 3.1～10.6 GHz has been obtained.The amplitude balance is less than 0.8 dB and the phase balance is less than 1° between the two output ports; the reflection coefficient at the input port is less than-12 dB.