A Lossy Circuit Model Based on Physical Interpretation for Integrated Shielded Slow-Wave CMOS Coplanar Waveguide Structures

Franc, Anne-Laure; Pistono, Emmanuel; Meunier, G.; Gloria, D.; Ferrari, Philippe

doi:10.1109/tmtt.2012.2231430

Cited by 66 publications

(38 citation statements)

References 12 publications

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“…In this context, to our knowledge, the S-CPWs show the highest Gre ff presented so far. As the frequency increases further in the mm W range, the dimensions of the shielding plane of a S-CPW need to be continuously reduced to minimize eddy currents, which increase even faster than conductive loss in the shield [6]. Thus, even the most advanced and expensive CMOS technology does not allow low-loss S-CPWs.…”

Section: Introductionmentioning

confidence: 99%

Slow-wave microstrip line on nanowire-based alumina membrane

Serrano

Franc

Assis

et al. 2014

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

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This paper proposes a new technology for slow wave microstrip lines based on a low-cost metallic-nanowire filled-membrane substrate (MnM-substrate). These transmission lines can operate from RF to millimeter-wave frequencies. The MnM-substrate consists in a dielectric material containing vertical metallic nanowires connected to a bottom ground plane. The innovative concept of the slow-wave microstrip lines on MnM-substrate is presented, as well as the electromagnetic considerations, fabrication process, and measurement results.Initial results show high relative dielectric constants (up to 43).Hence, it is possible to reach high-quality factor transmission lines within a great range of impedances, from 20 to 100 n, without critical dimensions.

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Section: Introductionmentioning

confidence: 99%

Slow-wave microstrip line on nanowire-based alumina membrane

Serrano

Franc

Assis

et al. 2014

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

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“…The majority of works focus on increasing the capacitance of the CPW as the main method to enlarge the microwave index 9–11,20,23–27 . Here, we propose an improved approach to properly design a high microwave index in slow-wave CPWs by increasing both capacitance and inductance.…”

Section: Introductionmentioning

confidence: 99%

Microwave index engineering for slow-wave coplanar waveguides

Rosa

Verstuyft

Brimont

et al. 2018

Sci Rep

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Microwave index engineering has been investigated in order to properly design slow-wave coplanar waveguides suitable for a wide range of applications in microwave, photonics, plasmonics and metamaterials. The introduction and optimization of novel capacitive and inductive elements is proposed as a design approach to increase the microwave index while keeping the impedance close to 50 Ω to ensure the compatibility with external electronic devices. The contribution of inductive and capacitive elements and their influence on the performance of the slow-wave coplanar waveguide has been systematically analyzed. As a result, a microwave index as high as 11.6 has been experimentally demonstrated in a frequency range up to 40 GHz which is, to the best of our knowledge, the largest microwave index obtained so far in coplanar waveguides.

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“…In CMOS, slow-wave transmission lines (SWTLs) using the metallic interconnections of the back-end-of-line have been successfully demonstrated in [1]- [4] based on coplanar waveguide (CPW) technology, or in [5], based on microstrip transmission lines. An electrical model of slow-wave coplanar waveguide (S-CPW) was proposed A.-L. Franc in [6]. In spite of the slow-wave effect, passive circuits still occupy most of the die area, which makes them responsible for most of the die cost.…”

Section: Introductionmentioning

confidence: 99%

“…They are also more compact as compared to their SW-SIW [11] or S-CPW [6] counterparts. Fundamentally, the MnM technology is similar to the technologies used in printed circuit board (PCB) [13] or plastic [14], [15].…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Characterization of Slow-Wave Microstrip Lines on Metallic-Nanowire- Filled-Membrane Substrate

Serrano

Franc

Assis

et al. 2014

IEEE Trans. Microwave Theory Techn.

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In this paper, a physical model of the slow-wave (SW) microstrip lines based on a metallic-nanowire-filled-membrane substrate is presented for the first time. The model properly predicts the behavior of the SW transmission lines as shown by the experimental results. Two sets of transmission lines differing in oxide thickness with various widths were fabricated and characterized up to 70 GHz. The electrical model is valid for both oxide thicknesses and microstrips width. High-quality factors are obtained, above 40 from 30 GHz up to 70 GHz, paving the way for further designs of passive circuits, like power dividers or hybrid couplers, with good performance.

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A Lossy Circuit Model Based on Physical Interpretation for Integrated Shielded Slow-Wave CMOS Coplanar Waveguide Structures

Cited by 66 publications

References 12 publications

Slow-wave microstrip line on nanowire-based alumina membrane

Slow-wave microstrip line on nanowire-based alumina membrane

Microwave index engineering for slow-wave coplanar waveguides

Modeling and Characterization of Slow-Wave Microstrip Lines on Metallic-Nanowire- Filled-Membrane Substrate

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