| Autor: |
K.Y. Lee, B. K. Chung, K. Y. You, E. M. Cheng, Z. Abbas |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Radioengineering, Vol 24, Iss 4, Pp 906-911 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
1210-2512 |
| Popis: |
Six-port reflectometer is well-known for its ability to measure magnitude and phase-shift of microwave signal using four power detectors that perform magnitude-only measurements. This paper presents the development of an innovative symmetric ring junction as four-port reflectometer for complex reflection coefficient measurements. It reduces the number of required detectors to two. Design optimization, new calibration modeling and algorithm are discussed in details for this four-port reflectometer. The developed four-port reflectometer is compared to five-port reflectometer and vector network analyzer. It is found that the measured magnitude and phase-shift shows good performance in comparison with the commercial vector network analyzer and the five-port reflectometer. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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