| 单词 |
quarter-wave stub |
| 释义 |
Quarter-Wave Stub quarter-wave stub[′kwȯrd·ər ‚wāv ¦stəb] (electromagnetism) A section of transmission line that is one quarter-wavelength long at the fundamental frequency being transmitted; when shorted at the far end, it has a high impedance at the fundamental frequency and all odd harmonics, and a low impedance for all even harmonics. Also known as quarter-wave line; quarter-wave transmission line. Quarter-Wave Stub (also quarter-wave line), a section of a microwave transmission line that is a quarter-wavelength long at the fundamental frequency being transmitted. The input impedance of a quarter-wave stub is inversely proportional to its load impedance. This property of quarter-wave stubs makes it possible to use such stubs in many microwave devices, such as quarter-wave transformers and antenna switches. |
| 随便看 |
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