Integrated On-Chip Transformers: Recent Progress in the Design, Layout, Modeling and Fabrication
AbstractOn-chip transformers are considered to be the primary components in many RF wireless applications. This paper provides an in-depth review of on-chip transformers, starting with a presentation on the various equivalent circuit models to represent transformer behavior and characterize their performance. Next, a comparative study on the different design and layout strategies is provided, and the fabrication techniques for on-chip implementation of transformers are discussed. The critical performance parameters to characterize on-chip transformers, such as the Q-factor, coupling factor (k), resonance frequency (fSR), and others, are discussed with reference to trade-offs in silicon chip real-estate. The performance parameters and area requirements for different types of on-chip transformers are summarized in tabular form and compared. Several techniques for performance enhancement of on-chip transformers, including the different types of micromachining and integration approaches stemming from MEMS (microelectromechanical systems) technologies are also analyzed. Lastly, the different uses and applications of on-chip transformers are discussed to highlight the evolution of on-chip transformer technology over the recent years and provide directions for future work in this field. View Full-Text
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Bajwa, R.; Yapici, M.K. Integrated On-Chip Transformers: Recent Progress in the Design, Layout, Modeling and Fabrication. Sensors 2019, 19, 3535.
Bajwa R, Yapici MK. Integrated On-Chip Transformers: Recent Progress in the Design, Layout, Modeling and Fabrication. Sensors. 2019; 19(16):3535.Chicago/Turabian Style
Bajwa, Rayan; Yapici, Murat K. 2019. "Integrated On-Chip Transformers: Recent Progress in the Design, Layout, Modeling and Fabrication." Sensors 19, no. 16: 3535.
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