Design of miniaturized on-chip bandpass filters using inverting-coupled structure for millimter-wave applications
- Publication Type:
- Conference Proceeding
- Proceedings - IEEE International Symposium on Circuits and Systems, 2019, 2019-May
- Issue Date:
|Design of miniaturized on-chip bandpass filters using inverting-coupled structure for millimter-wave applications.pdf||Published version||829.67 kB|
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© 2019 IEEE In this work, a new type of miniaturized on-chip resonator using an inductively-coupled structure is presented. The resonator is constructed by two spiral conductors that are implemented using two different metal layers. Since the two conductors are identical but placed in different rotating pattern, a kind of inductive coupling called inverting coupling will be introduced in addition to the broadside capacitive coupling. To fully understand the working mechanism of the resonator, simplified LC equivalent-circuit models and thorough analysis are provided. To further demonstrate the feasibility of the proposed miniaturized resonator in practice, two bandpass filters, namely a 1st-order and 2nd-order, are designed and fabricated in a standard 0.13-µm (Bi)-CMOS technology. Good agreements between simulation and measurement have obtained, which verify that the presented design approach is suitable for miniaturized on-chip passive design.
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