Journal ArticleDOI
Modeling of High- Q Conical Inductors and MOM Capacitors for Millimeter- Wave Applications
TLDR
In this paper, the linear voltage profile along the turns of the conical inductor is taken into account for capacitance calculation which is critical in accurately predicting ${Q}$ -values.Abstract:
Conical inductors and metal-oxide-metal (MOM) capacitors are shown to have higher quality factor ( ${Q}$ ) characteristics at millimeter wave (mm-wave) frequencies over conventional inductors and nitride MIM capacitors. In this work, Physics-based analytical models are developed for conical inductors and MOM capacitors usable at mm-wave frequencies. The linear voltage profile along the turns of the conical inductor is taken into account for capacitance calculation which is critical in accurately predicting ${Q}$ -values. Two RL networks coupled by capacitors are proposed to capture the frequency-dependent characteristics of the MOM capacitor. The lumped elements in both these device models are frequency independent and can be calculated using layout and process parameters. The proposed models for conical inductors and MOM capacitors are verified with electromagnetic (EM) simulations till 100 GHz. A prototype 60-GHz bandpass filter (BPF) is fabricated using $0.18~\mu \text{m}$ RF-silicon on insulator (SOI) technology to validate the accuracy of the developed compact models. BPF simulation results using the proposed models are shown to be in excellent agreement with those produced with EM simulations and silicon measurements.read more
Citations
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Journal ArticleDOI
Mutual-Inductance Computation between Coaxial Thin Conical Sheet Inductor and the Circular Loop in Air
TL;DR: In this article , a semi-analytical model for calculating the mutual inductance between a thin conical sheet inductor and a filamentary circular loop, which are coaxial in air, is presented.
Journal ArticleDOI
Calibration of optimized minimum inductor bandpass filter with controllable bandwidth and stopband rejection
TL;DR: A calibration methodology for the optimized minimum inductor (OMI) bandpass filter (BPF) to compensate passive components' inherent loss, such as resistances and reactances, is presented.
References
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Journal ArticleDOI
Design of Planar Rectangular Microelectronic Inductors
TL;DR: In this paper, the authors derived inductance equations for planar thin- or thick-film coils, comparing equations that include negative mutual inductance with those that do not, and presented a computer program developed for calculating inductances for both square and rectangular geometries, the variables considered being track width, space between tracks, and number of turns.
Journal ArticleDOI
Simple formulas for two- and three-dimensional capacitances
Takayasu Sakurai,K. Tamaru +1 more
TL;DR: In this article, simple formulas for wiring capacitances in VLSI, including two-and/or three-dimensional effects, were proposed for a wide range of wire thickness, wire width, and interwire spacing.
Journal ArticleDOI
Stacked inductors and transformers in CMOS technology
TL;DR: In this article, a modification of stacked spiral inductors increases the self-resonance frequency by 100% with no additional processing steps, yielding values of 5 to 266 nH and self resonance frequencies of 11.2 to 0.5 GHz.
Journal ArticleDOI
A three-step method for the de-embedding of high-frequency S-parameter measurements
TL;DR: In this paper, the authors proposed a general method of deembedding S-parameter measurements of the device under test (DUT) for which typical parasitics associated with probe pads and interconnect-metal lines can be deembedded from the measurement.
Journal ArticleDOI
Improvement of the quality factor of RF integrated inductors by layout optimization
TL;DR: In this article, a layout optimization method is proposed to minimize the series resistance of the inductor coil, taking into account both ohmic losses, due to conduction currents, and magnetically induced losses due to eddy currents.