In this paper, a simulation-based system-level conducted susceptibility (CS) testing method for wireless power transfer (WPT) system is proposed. The proposed employs 3-dimensional electromagnetic (3D EM) models as well equivalent circuit to replace the measurement-based CS based on International Electrotechnical Commission 61000-4-6 standard. conducted-noise source and equipment under test (EUT) are modeled in simulator. conduction path, bulk current injection probe, calibration jig using...

The physical noise coupling mechanism between voltage regulator module (VRM) to high-speed signal traces is analyzed and different reduction methods are for the first time. rapid switching of field effect transistors (FETs) creates an unintentional region around VRM. As often routed in inner layers printed circuit boards (PCBs) as striplines integrity, VRM mainly coupled from noisy power vias victim region. To analyze practical channels, a simplified PCB design based on server platform...

In this paper, a real-world signal and power integrity problem due to the switching noise of buck converter IC coupling high-speed line in server system is studied. The rapid field effect transistors (FETs) voltage regulator module (VRM) are main source performance degradation on nearby lines. A simplified mock-up simulation setup proposed based actual board design investigate mechanism VRM noise. explained with phenomenon capacitive inductive coupling. Based finding, solutions will be...

In this paper, a hybrid uniplanar compact electromagnetic bandgap (UC-EBG) design is proposed with wide-band noise suppression in power planes of printed circuit boards (PCBs). To achieve suppression, the UC-EBG employs combination various EBG unit cells different sizes which have frequency ranges corresponding to size cells. addition, an analytic model cell composed cavity resonant and meander line inductance validated by 3-dimensional field simulation measurement. demonstrate design,...

In this paper, the power supply noise associated with package parasitics in an on-chip low-dropout (LDO) regulator is investigated. The LDO off-chip decoupling capacitors has rail typically frequency range of few hundreds MHz, which related to inductive interconnects and parasitic capacitance pass transistor. An equivalent circuit proposed model understand effect interconnects. Based on circuit, mitigation from a design perspective discussed.

As the complexity of server platforms increases, noise produced by switching voltage regulator modules (VRMs) is more likely to be coupled nearby high-speed traces. This study aims investigate mechanism coupling between generated a VRM and signal trace, as well evaluate various noise-reduction methods. A VRM's rapid field effect transistors (FETs) generates an unintentional region that primarily injects into traces routed in inner layers printed circuit boards (PCBs) platforms. To analyze...

Accurate end-to-end power integrity simulations require models that include every component in the distribution network, including voltage regulator modules (VRMs) and on-die capacitors. However, VRMs has been challenging, because electronic simulation tools are not compatible with typical tools, encrypted VRM for SPICE typically sufficiently accurate to capture non-linear behaviors under various load conditions. Herein, a SPICE-compatible behavior modeling method is proposed, which applied...

In this paper, a behavior modeling method of buck converter with adaptive voltage positioning (AVP) and PCB parasitics for power distribution network design (PDN) is introduced. The model regulator module (VRM) previously proposed the integrity analysis. applied to VRM in practical high-speed digital board. For completeness model, an AVP are reproduce supply rail noise design. To validate parameters current controllers board extracted based on measurement. shows good correlation measurement...

In this paper, modeling of RFI problem caused by a solid-state drive (SSD) in laptop is proposed. Two noise sources (one outside and one inside cavity) the SSD are reconstructed as dipole moments with magnitude-only near-field scanning data. The moment cavity then replaced Huygens' box covering four side surfaces using numerical simulation. voltage at an RF antenna port calculated combining two measured transfer functions. model successfully validated through comparison calculation...

In this paper, a simulation-based conducted susceptibility (CS) testing method for wireless power transfer (WPT) systems is presented. The presented meant to replace the measurement-based CS specified in IEC 61000-4-6 standard with circuit and 3-dimensional field simulators. conduction noise sources, propagation path, equipment under test are modeled by equivalent models simulator. calibration jig dedicated inject solver. A system designed apply method. voltage timing on transferred signals...

In this paper, a methodology to analyze the power supply induced jitter (PSIJ) of high speed output buffer with on-die low-dropout (LDO) voltage regulator is presented. The approach relies on separate analysis LDO block and block. total system level PSIJ achieved by combining stand-alone results together. AC rejection ratio (PSRR) performed. loading effect also included. sensitivity obtained transient varying frequency sinusoidal rail noise. completed multiplying PSRR response sensitivity....

In this paper, a dielectric properties extraction method for millimeter-wave applications is presented. Substrate integrated waveguide (SIW) cavity resonators with the same structure and varied thicknesses are employed to separate dissipation factor (DF) of substrate material resonators. The constant loss tangent SIW extracted at resonance frequencies based on unloaded Q-factors transmission measurement. DF from Q-factors, which highly dependent thickness substrate, using an iterative...