Reanalysis on Performance of Microwave Phase Detector for Multisignals
Microwave phase detectors (MPDs) are key components of instantaneous frequency measurement (IFM) receivers and phase interferometer direction finding (PIF-DF) receivers. In conventional analyses, there is seldom a major quantitative discussion of MPD characterization when multiple signals arrive at...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/24/24/8076 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850058555383611392 |
|---|---|
| author | Jing Deng Hongxun Wang Xin Xiang |
| author_facet | Jing Deng Hongxun Wang Xin Xiang |
| author_sort | Jing Deng |
| collection | DOAJ |
| description | Microwave phase detectors (MPDs) are key components of instantaneous frequency measurement (IFM) receivers and phase interferometer direction finding (PIF-DF) receivers. In conventional analyses, there is seldom a major quantitative discussion of MPD characterization when multiple signals arrive at the same time, which is often the case in complex and noisy electromagnetic environments. We have reanalyzed the characteristics of MPDs with respect to filter effects acting on more than two RF signals and differential amplifiers, which are not considered in conventional analyses. First, a step-by-step mathematical model of the signal flow is developed, which creates a cross term between the two signals and naturally introduces intermodulation effects. Second, the new response characteristics of the MPD are evaluated by simulation. Finally, the intermodulation effects of zero-forcing and extreme-forcing were found simultaneously in the crosspoint frequency and near-frequency regions of multiple signals, which led to significant deviations and errors in the output of the MPD. This effect may have significant implications for IFM and PIF-DF receivers. |
| format | Article |
| id | doaj-art-2d67bd1dffa5472e97d88d96a12229cb |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-2d67bd1dffa5472e97d88d96a12229cb2025-08-20T02:51:07ZengMDPI AGSensors1424-82202024-12-012424807610.3390/s24248076Reanalysis on Performance of Microwave Phase Detector for MultisignalsJing Deng0Hongxun Wang1Xin Xiang2Aviation Engineering School, Air Force Engineering University, Xi’an 710038, ChinaAviation Engineering School, Air Force Engineering University, Xi’an 710038, ChinaAviation Engineering School, Air Force Engineering University, Xi’an 710038, ChinaMicrowave phase detectors (MPDs) are key components of instantaneous frequency measurement (IFM) receivers and phase interferometer direction finding (PIF-DF) receivers. In conventional analyses, there is seldom a major quantitative discussion of MPD characterization when multiple signals arrive at the same time, which is often the case in complex and noisy electromagnetic environments. We have reanalyzed the characteristics of MPDs with respect to filter effects acting on more than two RF signals and differential amplifiers, which are not considered in conventional analyses. First, a step-by-step mathematical model of the signal flow is developed, which creates a cross term between the two signals and naturally introduces intermodulation effects. Second, the new response characteristics of the MPD are evaluated by simulation. Finally, the intermodulation effects of zero-forcing and extreme-forcing were found simultaneously in the crosspoint frequency and near-frequency regions of multiple signals, which led to significant deviations and errors in the output of the MPD. This effect may have significant implications for IFM and PIF-DF receivers.https://www.mdpi.com/1424-8220/24/24/8076microwave phase detectors (MPDs)intermodulation effectsmultiple signalsnoisy electromagnetic environment |
| spellingShingle | Jing Deng Hongxun Wang Xin Xiang Reanalysis on Performance of Microwave Phase Detector for Multisignals Sensors microwave phase detectors (MPDs) intermodulation effects multiple signals noisy electromagnetic environment |
| title | Reanalysis on Performance of Microwave Phase Detector for Multisignals |
| title_full | Reanalysis on Performance of Microwave Phase Detector for Multisignals |
| title_fullStr | Reanalysis on Performance of Microwave Phase Detector for Multisignals |
| title_full_unstemmed | Reanalysis on Performance of Microwave Phase Detector for Multisignals |
| title_short | Reanalysis on Performance of Microwave Phase Detector for Multisignals |
| title_sort | reanalysis on performance of microwave phase detector for multisignals |
| topic | microwave phase detectors (MPDs) intermodulation effects multiple signals noisy electromagnetic environment |
| url | https://www.mdpi.com/1424-8220/24/24/8076 |
| work_keys_str_mv | AT jingdeng reanalysisonperformanceofmicrowavephasedetectorformultisignals AT hongxunwang reanalysisonperformanceofmicrowavephasedetectorformultisignals AT xinxiang reanalysisonperformanceofmicrowavephasedetectorformultisignals |