| 摘要 |
A microwave directional coupler includes a first transmission line having an input port and an output port, and a second transmission line having a coupled port and a terminated port. The second transmission line is electromagnetically coupled to the first transmission line. A first capacitor is coupled between the input port and a reference potential, such as ground, a second capacitor is coupled between the output port and the reference potential, a third capacitor is coupled between the coupled port and the reference potential, a fourth capacitor is coupled between the terminated port and the reference potential, and a fifth capacitor is coupled between the output port and the terminated port. The microwave directional coupler has a small size in 10 comparison with prior art directional couplers. |
