Roni Khazaka’s research while affiliated with McGill University and other places

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Publications (106)


Electromagnetic field coupling to multiconductor transmission linesin multi-layered media
  • Conference Paper

July 1998

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8 Reads

IEEE MTT-S International Microwave Symposium digest. IEEE MTT-S International Microwave Symposium

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R. Khazaka

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An accurate and efficient method for the analysis of incident field coupling to traces in inhomogenous media is described. The method is based on the application of physical optics in combination with the boundary matching technique. In addition to accounting for the inhomogeneity of the medium, this method provides significant CPU improvement over conventional techniques


A fast method for the simulation of lossy interconnects withfrequency dependent parameters

March 1996

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7 Reads

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8 Citations

Simulation of large interconnect structures has become a necessity for the design of current systems. The efficiency of moment-matching techniques has made the simulation of high-speed circuits containing large numbers of interconnect networks practically possible. In this paper a new method is proposed to extend moment-matching techniques to the analysis of interconnect networks with frequency dependent parameters. The frequency dependent interconnect parameters are extracted using the integral form of the Helmholtz equation



Simulation of delay and crosstalk in high speed VLSI interconnects

October 1995

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21 Reads

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4 Citations

Canadian Conference on Electrical and Computer Engineering

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R. Khazaka

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R. Griffith

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[...]

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Simulation of delay and cross-talk in VLSI interconnects is becoming important in high speed systems designs. However, the conventional circuit simulation involving dispersive system of VLSI interconnects is extremely CPU expensive. Several accurate and efficient methods based on, (1) numerical inversion of Laplace transform (NILT) and (2) complex frequency hopping (CFH) for the simulation of VLSI interconnects are discussed. Also, the extension of moment matching techniques for the case of interconnects with frequency dependent distributed models or full wave models has been presented. The proposed techniques ore useful for the accurate and efficient transient simulation involving high speed interconnects in MCMs, PCBs, VLSI chip packaging and high speed systems design




Citations (58)


... The proposed PEEC-MOR method is validated through numerical results in both the frequency domain and time domain. Data-driven derivative-enhanced modeling techniques have proven to be successful in building accurate models with a reduced computational effort [16], [17], [18]. ...

Reference:

Derivatives-Enhanced Proper Orthogonal Decomposition for PEEC Models With Delays
Derivative-Enhanced Rational Polynomial Chaos for Uncertainty Quantification
  • Citing Article
  • April 2024

IEEE Transactions on Circuits and Systems I Regular Papers

... Indeed, working in a real environment, outside of anechoic chamber, may degrade the dynamic range. Otherwise, employing two orthogonal polarizations (for UL and DL components of the E-wave) or two different harmonic frequency (using a harmonic transponder [6]- [7]) for transmission of the DL E-wave) and reception (UL E-wave) can significantly enhance the signal's dynamic range with the price of increasing system complexity. ...

Single-Ended Reconfigurable Wireless Power Harvesting and Harmonic Backscattering
  • Citing Conference Paper
  • June 2023

... The Dickson rectifier in Figure 1 was demonstrated in the '70s by John F. Dickson [10]. In recent times, due to the practicality and simplicity of the Dickson rectifier, it has commonly been found and implemented in various charge pump and voltage doubler circuitry [11]- [16]. The coupling capacitor C1 charges during VRF < -VDIODE through D1 and functions as a doubler during VRF > VDIODE through D2 to transfer the charges to CL to generate VOUT = 2(|VRF| -VDIODE). ...

Improving Temperature Stability of Dickson Charge Pump Rectifiers for Battery-Free Wireless Sensing Applications
  • Citing Conference Paper
  • June 2023

... Indeed, the polymer material involved in the additive manufacturing as well as the added conductor have a major impact on the RFEH performances and it is one of the main issues of the paper to quantify the impact and discuss the pertinence of the manufacturing process proposal in this context. [14], B- [15], C- [16], D- [17], E- [15], F- [15], G- [8], H- [8], I- [18], J- [19], K- [20], L- [21], M- [22], N- [4], O- [23], P- [24], Q- [25], R- [25], S- [26], T- [26], U- [27], V- [27], W- [28], X- [29], Y- [30], Z- [31], AA- [32], BB- [33], CC- [33], DD- [34], EE- [9], FF- [35], GG- [32], HH- [36], II- [28], JJ- [37], KK- [5], LL- [19], MM- [38], NN- [39], OO- [31], PP- [40], QQ- [41], RR- [42], SS- [43], TT- [44], UU- [45] 3D Plastronics allows integrating electronic functions at the surface of the polymer housing of an object by selective metallization of conductive traces and placement of Surface Mount Devices (SMD) [46,47]. 3D Plastronics is the terminology now accepted by the IPC organization [48], but it is also known as Molded Interconnect Devices or Mechatronic Integrated Devices (MID) [47]. ...

Thermal Effects on Low-Power RF-to-dc Voltage Multiplier for Battery-Free Sensing and IoT
  • Citing Conference Paper
  • Full-text available
  • July 2022

... High efficiency transponder designs have been studied extensively. And a variety of diode types [21] [12], topologies [13] and operating modes [22] are investigated to improve the harmonic conversion efficiency. However, the approaches are only effective for a limited number of cooperative scenarios. ...

Nonlinearity and Parametrization of Schottky Diodes-Based Battery-Free Harmonic Transponder for Millimeter-Wave 5G Applications

... An item's level of participation in a fuzzy set indicates the extent to which it shares that set's defining features or attributes. If U is the space of uncertainty, then ωà is the membership function connected to each of its constituents in the fuzzy set Ã. Then the representation of fuzzy set is given by (Chamoun & Nour, 2021;Kassis et al., 2019;Saab & Saab, 2019): ...

Moments-Based Sensitivity Analysis of X-Parameters with respect to Linear and Nonlinear Circuit Components
  • Citing Conference Paper
  • October 2019

... However, this can be achieved by leveraging a form of model selection. To this aim, we note that VF has already been coupled with model selection strategies [34,33], as a way to overcome one of its main limitations, namely, the need to fix the "surrogate complexity" m in advance. Without going into too many details, such model selection strategies generally work by using VF to independently build several rational approximations with different values of m, and then selecting the rational approximant characterized by the lowest approximation error 2 . ...

A Novel Framework for Parametric Loewner Matrix Interpolation
  • Citing Article
  • October 2019

IEEE Transactions on Components, Packaging, and Manufacturing Technology

... The subspace methods including ORT, N4SID, MOESP, CVA) were used for the linear state space identification with different probing tests [36][37][38]. Afterwards, many variants of transfer function identification methods [8,13,[39][40][41][42][43][44][45][46][47][48] and state space identification methods [6,15,22,[49][50][51][52] were developed for data-driven control in the context of power grid applications such as damping control, voltage control and microgrid control (primary, secondary and tertiary) and aggregated load control. Generally, both transfer function and linear state space methods can represent systems well using a locally linearized model around a fixed operating point under the assumption that the system is an LTI (linear time-invariant). ...

A Loewner Interpolation Method for Power System Identification and Order Reduction
  • Citing Article
  • November 2018

Power Systems, IEEE Transactions on

... This includes time domain approaches such as Latency Insertion Method [2]. Another type of simulation method is the use of Harmonic Balance moments to compute the X-parameters for circuits excited with single or multiple input frequencies [3][4][5]. This approach allows for the computation of a complete set of X-parameters for the given system. ...

Computation of the X-Parameters of Multi-Tone Circuits using Multipoint Moment Expansion
  • Citing Conference Paper
  • October 2017

... This includes time domain approaches such as Latency Insertion Method [2]. Another type of simulation method is the use of Harmonic Balance moments to compute the X-parameters for circuits excited with single or multiple input frequencies [3][4][5]. This approach allows for the computation of a complete set of X-parameters for the given system. ...

Computation of X-Parameters Using Multipoint Moment Expansion
  • Citing Article
  • September 2017

IEEE Transactions on Components, Packaging, and Manufacturing Technology