Serhend Arvas

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A new technique to measure uniaxial anisotropy in planar substrates is described. The technique uses a single dual-mode resonator. Each mode of the resonator has a different distribution of horizontal (parallel to the substrate surface) and vertical (perpendicular to the substrate surface) directed fields. Using an electromagnetic analysis of the dual-mode(More)
An improved technique to measure uniaxial anisotropy in planar substrates is described. This technique builds on previous work performed with stripline. The improved approach offers substantially larger bandwidth, lower error, and ease of measurement. An almost complete automation of the entire calibration and measurement extraction process is described. It(More)
We provide an overview of recently published research on the effect of planar substrate dielectric anisotropy and metal surface roughness. The effect of metal roughness on loss is shown to be substantially different from that predicted by commonly used models. Roughness has also been shown to have a substantial effect on velocity of propagation/effective(More)
Design, implementation and measurement of low power CMOS analog baseband stages used in a Medical Implant Communication Service and Body Area Network receivers are presented. The analog stages presented in this work include an operational transconductance amplifier, a 5<sup>th</sup> order tunable active elliptic filter and a limiting amplifier. The designs(More)
  • Serhend Arvas
  • WAMICON 2012 IEEE Wireless & Microwave Technology…
  • 2012
Equivalent circuit model extraction of spiral inductors is an active area of research. Uses of equivalent circuit extraction range from simply providing insight to a designer, to allowing for automated design optimization. Over the years, many equivalent circuit topologies have been proposed for modeling spiral inductors. A history of the development of(More)
It is proven that the surface Electric Field Integral Equation (EFIE) has a non-unique solution when applied to a dielectric waveguide of arbitrary cross section. The Method of Moments (MOM) is used to numerically solve the EFIE applied to an optical fiber of arbitrary cross section. The fiber is assumed to consist of a dielectric core of arbitrary cross(More)
The use of Monte Carlo samples of interpolated data from a linearly spaced grid of electromagnetic simulation data for yield analysis is investigated. The motivation for this approach stems from a desire to have accurate yield metrics without the need to fabricate a large number of circuits or run a large number of full wave simulations. A means to estimate(More)
A theoretical study is presented for the feasibility of a microwave heating device that will raise the temperature of heavy oil and bitumen reservoir. The device is enclosed in a radome which is surrounded by a perforated metal pipe. Outside the pipe is occupied by a mixture of heavy oil and calcite. Various dielectric properties are assumed for the radome(More)
A simple moment method technique is used to solve the problem of electromagnetic scattering from, and transmission through a two dimensional chiral radome of arbitrary cross section. The radome is a cylindrical shell of arbitrary cross section and arbitrary thickness, with its axis coinciding with the z-axis. It is excited by either a plane wave (TM or TE)(More)
In this paper, examples of student projects illustrate the level that antenna design education can be taken through the use of software and hardware tools. Through project based courses, s complete design experience can be provided that includes the development of analytical models in addition to the use of software modeling tools, construction and(More)
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