Radioengineering 

About: Radioengineering is an academic journal published by Spolecnost pro radioelektronicke inzenyrstvi. The journal publishes majorly in the area(s): Antenna (radio) & Wideband. It has an ISSN identifier of 1210-2512. It is also open access. Over the lifetime, 1084 publications have been published receiving 9631 citations.

SPICE Model of Memristor with Nonlinear Dopant Drift

Abstract: A mathematical model of the prototype of memristor, manufactured in 2008 in Hewlett-Packard Labs, is described in the paper. It is shown that the hitherto published approaches to the modeling of boundary conditions need not conform with the requirements for the behavior of a practical circuit element. The described SPICE model of the memristor is thus constructed as an open model, enabling additional modifications of non-linear boundary conditions. Its functionality is illustrated on computer simulations.

Active Elements for Analog Signal Processing: Classification, Review, and New Proposals

Abstract: In the paper, an analysis of the state-of-the-art of active elements for analog signal processing is presented which support - in contrast to the conven tional operational amplifiers - not only the voltage-mode but also the current- and mixed-mode operations. Several pro blems are addressed which are associated with the utiliza tion of these elements in linear applications, particularly in frequency filters. A methodology is proposed which generates a number of fundamentally new active elem ents with their potential utilization in various areas o f signal processing.

Everything You Wish to Know About Memristors But Are Afraid to Ask

Abstract: This paper classifies all memristors into three classes called Ideal, Generic, or Extended memristors. A subclass of Generic memristors is related to Ideal memristors via a one-to-one mathematical transformation, and is hence called Ideal Generic memristors. The concept of non-volatile memories is defined and clarified with illustrations. Several fundamental new concepts, including Continuum-memory memristor, POP (acronym for Power-Off Plot), DC V-I Plot, and Quasi DC V-I Plot, are rigorously defined and clarified with colorful illustrations. Among many colorful pictures the shoelace DC V-I Plot stands out as both stunning and illustrative. Even more impressive is that this bizarre shoelace plot has an exact analytical representation via 2 explicit functions of the state variable, derived by a novel parametric approach invented by the author.

Current and Future Research Trends in Substrate Integrated Waveguide Technology

Abstract: Substrate Integrated Waveguide (SIW) tech- nology is the most promising candidate for the implemen- tation of millimeter-wave (mm-wave) integrated circuits and systems for the next decade. Based on planar dielectric substrates with top and bottom metal layers perforated with metalized holes, SIW structures offer a compact, low loss, flexible, and cost-effective solution for integrating active circuits, passive components and radiating elements on the same substrate. This paper presents an overview of the current status and future trends of academic and in- dustrial research on SIW technology. The historical devel- opment of SIW components and circuits is briefly outlined, and the current research topics are discussed: they include the development of numerical techniques for the modeling and design of SIW components, the investigation of novel compact and broadband interconnects, the determination of design solutions for loss minimization. Future research trends are also discussed: they mainly aim at the imple- mentation of SIW components at higher frequency (60-350 GHz) and the integration of complete Systems-on-Substrate (SoS).

Reliable SPICE Simulations of Memristors, Memcapacitors and Meminductors

Abstract: Memory circuit elements, namely memristive, memcapacitive and meminductive systems, are gaining con- siderable attention due to their ubiquity and use in diverse areas of science and technology. Their modeling within the most widely used environment, SPICE, is thus critical to make substantial progress in the design and analysis of com- plex circuits. Here, we present a collection of models of different memory circuit elements and provide a methodol- ogy for their accurate and reliable modeling in the SPICE environment. We also provide codes of these models writ- ten in the most popular SPICE versions (PSpice, LTspice, HSPICE) for the benefit of the reader. We expect this to be of great value to the growing community of scientists inter- ested in the wide range of applications of memory circuit elements.