Infrared and Millimeter Waves V6
Infrared and Millimeter Waves V6

Author: Kenneth J. Button

Publisher: Elsevier

Published: 1982-06-28

Total Pages: 433

ISBN-13: 0323150594

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Infrared and Millimeter Waves is a series of books that compiles the work of several authors, with each volume focusing on certain aspect of infrared and millimeter waves, such as sources of radiation, instrumentation, and millimeter systems. This is particularly related to systems and components. Consisting of six chapters, the book first offers a review of infrared and submillimeter spectroscopy of the atmosphere. The next chapter provides a comprehensive coverage of interferometric spectrometers. Chapter three discusses general principles of infrared detectors, treatment of photon detectors, bolometers, and coherent detectors. The fourth chapter discusses the use of metal-semiconductor junctions as frequency converters. Next, the book reviews quasi-optical techniques at millimeter and submillimeter wavelengths. The last chapter tackles far-infrared and submillimeter-wavelength filters. This book will be of great use to researchers and professionals whose work involves infrared and millimeter waves.

Advances in Sensing with Security Applications
Advances in Sensing with Security Applications

Author: Jim Byrnes

Publisher: Springer Science & Business Media

Published: 2006-01-02

Total Pages: 380

ISBN-13: 1402042957

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The chapters in this volume were presented at the July 2005NATO Advanced Study Institute on Advances in Sensing with Security App- cations. The conference was held at the beautiful Il Ciocco resort near Lucca, in the glorious Tuscany region of northern Italy. Once again we gathered at this idyllic spot to explore and extend the reciprocity between mathematics and engineering. The dynamic interaction - tween world-renowned scientists from the usually disparate communities of pure mathematicians and applied scientists which occurred at our six previous ASI’s continued at this meeting. The fusion of basic ideas in mathematics, biology, and chemistry with ongoing improvements in hardware and computation o?ers the promise of much more sophisticated and accurate sensing capabilities than c- rently exist. Coupled with the dramatic rise in the need for surveillance in innumerable aspects of our daily lives, brought about by hostile acts deemed unimaginable only a few short years ago, the time was right for scientists in the diverse areas of sensing and security to join together in a concerted e?ort to combat the new brands of terrorism. This ASI was one important initial step. To encompass the diverse nature of the s- ject and the varied backgrounds of the anticipated participants, the ASI was divided into three broadly de?ned but interrelated areas: the - creasing need for fast and accurate sensing, the scienti?c underpinnings of the ongoing revolution in sensing, and speci?c sensing algorithms and techniques. The ASI brought together world leaders from academia, government, andindustry,withextensivemultidisciplinarybackgroundsevidencedby theirresearchandparticipationinnumerousworkshopsandconferences.

Soft Computing Methods for Microwave and Millimeter-Wave Design Problems
Soft Computing Methods for Microwave and Millimeter-Wave Design Problems

Author: Narendra Chauhan

Publisher: Springer Science & Business Media

Published: 2012-02-09

Total Pages: 119

ISBN-13: 3642255620

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The growing commercial market of Microwave/ Millimeter wave industry over the past decade has led to the explosion of interests and opportunities for the design and development of microwave components.The design of most microwave components requires the use of commercially available electromagnetic (EM) simulation tools for their analysis. In the design process, the simulations are carried out by varying the design parameters until the desired response is obtained. The optimization of design parameters by manual searching is a cumbersome and time consuming process. Soft computing methods such as Genetic Algorithm (GA), Artificial Neural Network (ANN) and Fuzzy Logic (FL) have been widely used by EM researchers for microwave design since last decade. The aim of these methods is to tolerate imprecision, uncertainty, and approximation to achieve robust and low cost solution in a small time frame. Modeling and optimization are essential parts and powerful tools for the microwave/millimeter wave design. This book deals with the development and use of soft computing methods for tackling challenging design problems in the microwave/millimeter wave domain. The aim in the development of these methods is to obtain the design in small time frame while improving the accuracy of the design for a wide range of applications. To achieve this goal, a few diverse design problems of microwave field, representing varied challenges in the design, such as different microstrip antennas, microwave filters, a microstrip-via and also some critical high power components such as nonlinear tapers and RF-windows are considered as case-study design problems. Different design methodologies are developed for these applications. The presents soft computing methods, their review for microwave/millimeter wave design problems and specific case-study problems to infuse better insight and understanding of the subject.

Astronomy and Astrophysics Abstracts
Astronomy and Astrophysics Abstracts

Author: S. Böhme

Publisher: Springer Science & Business Media

Published: 2013-12-14

Total Pages: 1180

ISBN-13: 3662123827

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From the reviews: Astronomy and Astrophysics Abstracts has appeared in semi-annual volumes since 1969 and it has already become one of the fundamental publications in the fields of astronomy, astrophysics and neighbouring sciences. It is the most important English-language abstracting journal in the mentioned branches. ... The abstracts are classified under more than hundred subject categories, thus permitting a quick survey of the whole extended material. The AAA is a valuable and important publication for all students and scientists working in the fields of astronomy and related sciences. As such it represents a necessary ingredient of any astronomical library all over the world." Space Science Reviews #1 "Dividing the whole field plus related subjects into 108 categories, each work is numbered and most are accompanied by brief abstracts. Fairly comprehensive cross-referencing links relevant papers to more than one category, and exhaustive author and subject indices are to be found at the back, making the catalogues easy to use. The series appears to be so complete in its coverage and always less than a year out of date that I shall certainly have to make a little more space on those shelves for future volumes." The Observatory Magazine #1

THz Communications
THz Communications

Author: Thomas Kürner

Publisher: Springer Nature

Published: 2021-12-07

Total Pages: 510

ISBN-13: 3030737381

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This book describes the fundamentals of THz communications, spanning the whole range of applications, propagation and channel models, RF transceiver technology, antennas, baseband techniques, and networking interfaces. The requested data rate in wireless communications will soon reach from 100 Gbit/s up to 1 Tbps necessitating systems with ultra-high bandwidths of several 10s of GHz which are available only above 200 GHz. In the last decade, research at these frequency bands has made significant progress, enabling mature experimental demonstrations of so-called THz communications, which are thus expected to play a vital role in future wireless networks. In addition to chapters by leading experts on the theory, modeling, and implementation of THz communication technology, the book also features the latest experimental results and addresses standardization and regulatory aspects. This book will be of interest to both academic researchers and engineers in the telecommunications industry.

Systematic Study of Key Components for a Coaxial-Cavity Gyrotron for DEMO
Systematic Study of Key Components for a Coaxial-Cavity Gyrotron for DEMO

Author: Franck, Joachim

Publisher: KIT Scientific Publishing

Published: 2017-05-11

Total Pages: 274

ISBN-13: 3731506521

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The physical design of cavity and magnetron injection gun (MIG) for a realistic, DEMO-compatible, coaxial-cavity 238 GHz 2 MW CW fusion gyrotron is developed in this work, having auxiliary frequencies at 170 GHz and 204 GHz. Novel systematic approaches towards multi-frequency mode selection, magnet requirements, and MIG design are presented. Mode deterioration and voltage depression variation due to insert misalignment versus cavity wall and/or versus electron beam are studied.