Design of millimeter-wave transformer balun with isolation circuit in silicon based technology

Zhang, Dawei; Yu, Hao; Kumar, Thangarasu Bharatha; Men, Kai; Lu, Muting; Yu, Xiaopeng; Yeo, Kiat Seng

doi:10.1109/isicir.2016.7829699

Cited by 2 publications

(2 citation statements)

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“…The concept of using on-chip transformer baluns for the conversion of balanced-unbalanced circuits can be extended to mm-wave frequencies as well [61,92]. However, a careful design approach is required, since parasitic capacitive coupling increases at higher frequencies, which causes poor isolation between differential end ports of a transformer balun and limits the mm-wave operation.…”

Section: Applications Of On-chip Transformersmentioning

confidence: 99%

“…However, a careful design approach is required, since parasitic capacitive coupling increases at higher frequencies, which causes poor isolation between differential end ports of a transformer balun and limits the mm-wave operation. To address this issue, an isolation circuit can be introduced between the differential ports of the balun to improve the isolation characteristics [92].…”

Section: Applications Of On-chip Transformersmentioning

confidence: 99%

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Integrated On-Chip Transformers: Recent Progress in the Design, Layout, Modeling and Fabrication

Bajwa

Yapıcı

2019

Sensors

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On-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.

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Section: Applications Of On-chip Transformersmentioning

confidence: 99%

Section: Applications Of On-chip Transformersmentioning

confidence: 99%