开发了一种6~18 GHz宽带四路波导合成器,以标准双脊波导WRD500D36为基础,开发出了脊波导E面分支合成结构和脊波导阻抗变换结构。最终实现的四路波导合成器在带内驻波<2,插损<0.5 d B,合成效率>90%,并对该结构大功率合成的可行...开发了一种6~18 GHz宽带四路波导合成器,以标准双脊波导WRD500D36为基础,开发出了脊波导E面分支合成结构和脊波导阻抗变换结构。最终实现的四路波导合成器在带内驻波<2,插损<0.5 d B,合成效率>90%,并对该结构大功率合成的可行性进行了仿真预计。展开更多
A three-stage monolithic microwave integrated circuit (MMIC) power amplifier from 6-18 GHz, which achieves high output power with excellent efficiency, is designed, fabricated and tested. Measured results show that ...A three-stage monolithic microwave integrated circuit (MMIC) power amplifier from 6-18 GHz, which achieves high output power with excellent efficiency, is designed, fabricated and tested. Measured results show that the saturated output power and the small signal gain are about 32 dBm and 23 dB, respectively. Thus, the power added efficiency of about 28% indicates that it is useful in various communication systems.展开更多
文摘A three-stage monolithic microwave integrated circuit (MMIC) power amplifier from 6-18 GHz, which achieves high output power with excellent efficiency, is designed, fabricated and tested. Measured results show that the saturated output power and the small signal gain are about 32 dBm and 23 dB, respectively. Thus, the power added efficiency of about 28% indicates that it is useful in various communication systems.