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Article
Publication date: 16 November 2010

Peter Scholz, Wolfgang Ackermann and Thomas Weiland

The purpose of this paper is to offer a fast and accurate simulation method for printed spiral radio frequency identification coils and to extract the parameters of an equivalent…

Abstract

Purpose

The purpose of this paper is to offer a fast and accurate simulation method for printed spiral radio frequency identification coils and to extract the parameters of an equivalent resonance circuit.

Design/methodology/approach

The frequency‐dependent port impedance of a rectangular spiral multi‐turn antenna is simulated with the non‐retarded partial element equivalent circuit (PEEC) method. The discretization settings needed for an accurate modeling of skin and proximity effects at medium frequencies as well as parasitic capacitances are discussed. Two different PEEC approaches are used, a magneto‐quasi‐static (resistive and inductive cells) model and a non‐retarded (capacitive cells included) model in order to extract a reduced equivalent resonance circuit which is beneficial to describe the inductive coupling to further inductors via the transformer concept.

Findings

With optimized mesh settings, the extremely fast simulation can be carried out just in seconds whereas the results compared to a computationally much more expensive CST Microwave Studio® reference solution as well as an analytical direct current solution show errors of only about a few percent.

Research limitations/implications

The methodology is limited to frequencies up to the first self‐resonant frequency of the coil. In addition, piecewise‐homogeneous materials are implied.

Originality/value

Specialized mesh settings allow for a very fast and accurate simulation of rectangular spiral inductors. A method for the parameter extraction of a resonance circuit is proposed by evaluating two different PEEC models.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 29 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

Content available
Book part
Publication date: 30 September 2019

Abstract

Details

Generations Z in Europe
Type: Book
ISBN: 978-1-78973-491-1

Abstract

Details

Protest Technologies and Media Revolutions
Type: Book
ISBN: 978-1-83982-647-4

Abstract

Details

Platform Economics: Rhetoric and Reality in the ‘Sharing Economy’
Type: Book
ISBN: 978-1-78743-809-5

Book part
Publication date: 20 November 2023

Fabien Trémeau

Since the 1990s, the German current of Value Criticism has been proposing to rework a critique of capitalism based on the mature works of Marx. Starting from the primary…

Abstract

Since the 1990s, the German current of Value Criticism has been proposing to rework a critique of capitalism based on the mature works of Marx. Starting from the primary categories of capital – value, abstract labor, commodity fetishism – they intend to overcome the traditional contradictions of Marxism, capital/labor, proletariat/bourgeoisie, etc. The Canadian thinker Moishe Postone has, independently of value criticism, developed a thought that is close to the German current while distinguishing itself on certain important points. However, it is appropriate to question these new readings of Marx which, if they can be fruitful, pose many problems, both philosophical and political.

Details

Value, Money, Profit, and Capital Today
Type: Book
ISBN: 978-1-80455-751-8

Keywords

Article
Publication date: 1 February 2009

Tobias Buchner

This article starts with a brief overview of the history of housing for people with intellectual disability in Austria. The system of care and Austrian disability policy are also…

Abstract

This article starts with a brief overview of the history of housing for people with intellectual disability in Austria. The system of care and Austrian disability policy are also examined, focusing on implementation of deinstitutionalisation and community living. The following analysis of services provided in the field of housing for people with intellectual disabilities shows that support is provided in undistinguished, generalised service packages based on a competency model. Academic research on community living is quite rare in Austria, and fails to take into account the subjective perspective of people with intellectual disabilities.

Details

Tizard Learning Disability Review, vol. 14 no. 1
Type: Research Article
ISSN: 1359-5474

Keywords

Abstract

Details

Business and Management Doctorates World-Wide: Developing the Next Generation
Type: Book
ISBN: 978-1-78973-500-0

Content available
Article
Publication date: 1 January 2006

30

Abstract

Details

Microelectronics International, vol. 23 no. 1
Type: Research Article
ISSN: 1356-5362

Keywords

Article
Publication date: 31 January 2024

Juan Zhang, Xi Gao, Xi Hong and Hamish Coates

Although doctoral education has experienced substantial development in recent decades, it remains an elite, hence fragile, dimension of university policy and practice. This study…

Abstract

Purpose

Although doctoral education has experienced substantial development in recent decades, it remains an elite, hence fragile, dimension of university policy and practice. This study aims to articulate perspectives to guide the next phase of strengthening and growth.

Design/methodology/approach

Working from theoretical and empirical research conducted in China, including scholarship on workforce ecosystems, education design and the student experience, this study contributes a framework with qualitative insights which clarify the goals and experiences of doctoral education in ways that will render it more relevant, effective and contributing.

Findings

The paper identifies areas for doctoral reform to ensure career readiness, including three distinctive outcomes and four indispensable experiences.

Originality/value

This study advances a doctoral design framework which can render transparent the substance of programs and prompt program coordinators to develop and ensure career relevance.

Details

Studies in Graduate and Postdoctoral Education, vol. 15 no. 2
Type: Research Article
ISSN: 2398-4686

Keywords

1 – 10 of 335