A 110 GHz Continuous 220° Phase Shifter Using Passive Feedback Circuit in 40‐nm CMOS Technology
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2025
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| author | Ruibing Dong Shinsuke Hara Mohamed H. Mubarak Issei Watanabe Satoru Tanoi Tatsuo Hagino Akifumi Kasamatsu |
| author_facet | Ruibing Dong Shinsuke Hara Mohamed H. Mubarak Issei Watanabe Satoru Tanoi Tatsuo Hagino Akifumi Kasamatsu Ruibing Dong Shinsuke Hara Mohamed H. Mubarak Issei Watanabe Satoru Tanoi Tatsuo Hagino Akifumi Kasamatsu |
| collection | Wiley Open Access |
| contents | A 110 GHz Continuous 220° Phase Shifter Using Passive Feedback Circuit in 40‐nm CMOS Technology Ruibing Dong Shinsuke Hara Mohamed H. Mubarak Issei Watanabe Satoru Tanoi Tatsuo Hagino Akifumi Kasamatsu Microwave and Optical Technology Letters ABSTRACTThe circuit mechanism of the feedback phase shifter is clearly analyzed based on microwave network analysis, and then an intuitive design approach is proposed. First, the phase shifting concept beyond the addressed design will be analyzed in terms of Y‐parameters, and the dependency of the phase on the feedback admittance Yf will accordingly be concluded. A feedback circuit was therefore designed based on an intuitive phase‐magnitude graph, such that the locus of admittance Yf will cross over various phase lines on the plane when tuning the varactor at the feedback. To demonstrate the approach, a phase shifter was designed, which consists of two successive shifter stages for coarse and fine‐tuning that provide 177° and 46° for each stage, respectively, at 110 GHz. The module is adopted in a 1.16 mm2 size and shows a total DC power consumption of 92 mW. 10.1002/mop.70365 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/mop.70365 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_mop_70365 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | A 110 GHz Continuous 220° Phase Shifter Using Passive Feedback Circuit in 40‐nm CMOS Technology Ruibing Dong Shinsuke Hara Mohamed H. Mubarak Issei Watanabe Satoru Tanoi Tatsuo Hagino Akifumi Kasamatsu Microwave and Optical Technology Letters A 110 GHz Continuous 220° Phase Shifter Using Passive Feedback Circuit in 40‐nm CMOS Technology Ruibing Dong Shinsuke Hara Mohamed H. Mubarak Issei Watanabe Satoru Tanoi Tatsuo Hagino Akifumi Kasamatsu Microwave and Optical Technology Letters ABSTRACTThe circuit mechanism of the feedback phase shifter is clearly analyzed based on microwave network analysis, and then an intuitive design approach is proposed. First, the phase shifting concept beyond the addressed design will be analyzed in terms of Y‐parameters, and the dependency of the phase on the feedback admittance Yf will accordingly be concluded. A feedback circuit was therefore designed based on an intuitive phase‐magnitude graph, such that the locus of admittance Yf will cross over various phase lines on the plane when tuning the varactor at the feedback. To demonstrate the approach, a phase shifter was designed, which consists of two successive shifter stages for coarse and fine‐tuning that provide 177° and 46° for each stage, respectively, at 110 GHz. The module is adopted in a 1.16 mm2 size and shows a total DC power consumption of 92 mW. 10.1002/mop.70365 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | A 110 GHz Continuous 220° Phase Shifter Using Passive Feedback Circuit in 40‐nm CMOS Technology |
| topic | Microwave and Optical Technology Letters |
| url | https://onlinelibrary.wiley.com/doi/10.1002/mop.70365 |