| 摘要 |
<p>A phase detector (100, 400, 800) comprising a balun (150) and input ports (116) at each of the balun's balanced ports. The phase detector (100, 400, 800) has four devices (105, 115, 110, 155) for measuring a signal's amplitude:—a first device (105) at a first input port (116),—a second device (115) at a second input port (117),—a third device (110) between the input ports (116, 117), connected to the ports via a passive component (120, 125; 120′, 125; 120″, 125″),—a fourth device (155) at the unbalanced port of the balun (150), The difference between the amplitude values of the third (110) and fourth (155) devices indicate the phase difference and the difference between the amplitude values measured by the first (110) and second (115) devices indicates the phase difference in the region of 0-2π.</p> |
