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1. |
Record Nr. |
UNINA9910457982303321 |
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Autore |
Fourikis Nicholas |
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Titolo |
Advanced array systems, applications and RF technologies [[electronic resource] /] / Nicholas Fourikis |
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Pubbl/distr/stampa |
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San Diego, : Academic Press, 2000 |
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ISBN |
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1-281-01973-9 |
9786611019730 |
0-08-049870-1 |
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Descrizione fisica |
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1 online resource (389 p.) |
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Collana |
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Signal processing and its applications |
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Disciplina |
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Soggetti |
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Phased array antennas |
Microwave antennas |
Radio frequency |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Front Cover; Advanced Array Systems, Applications and RF Technologies; Copyright Page; Contents; Series Preface; Preface; List of Abbreviations; Chapter 1. Systems and Applications; 1.1. Phased Arrays and What They Offer; 1.2. Radar Fundamentals and Applications; 1.3. Radioastronomy Aims and Applications; 1.4. Planetary Radar Astronomy; 1.5. The Subtle Phased Array Attractors; 1.6. Radar Systems; 1.7. Radioastronomy Systems; 1.8. Variants of Phased Arrays; 1.9. Communication systems; 1.10. The Importance of Radiofrequency (RF) Subsystems; 1.11. The Wider Thrusts; 1.12. Concluding Remarks |
ReferencesChapter 2. From Array Theory to Shared Aperture Arrays; 2.1. General Considerations; 2.2. Linear Arrays; 2.3. Planar Arrays; 2.4. Circular/Cylindrical Arrays; 2.5. Characterization and Realization of Arrays; 2.6. Affordable and Low-Cost Arrays; 2.7. Wideband Arrays; 2.8. Concluding Remarks; References; Chapter 3. Array Antenna Elements; 3.1. A Review of Trends and Requirements; 3.2. Monopoles/Dipoles; 3.3. Reflector Systems; 3.4. Beamforming Lenses; 3.5. Phased Arrays on Steerable Mounts; 3.6. Microstrip/Printed Board |
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Antennas; 3.7. Superconducting Antennas/Arrays; 3.8. Subarrays |
3.9. Polarization Agility and Work in Progress3.10. Concluding Remarks and a Postscript; References; Chapter 4. Transmit/Receive Modules; 4.1. The Important Issues; 4.2. System Issues; 4.3. MMIC-based Modules; 4.4. Tubes; 4.5. The Marriage of Vacuum and Solid-State Technologies; 4.6. Vacuum Microelectronic Devices; 4.7. Comparisons; 4.8. Concluding Remarks; References; Chapter 5. Beamformers; 5.1. The Basic Issues and Some Elaborations; 5.2. The Formation of Stating Beams; 5.3. The Formation of Several Agile/Staring Beams; 5.4. Digital Beamformers; 5.5. Photonics and Phased Arrays |
5.6. Other Beamformers5.7. Low-cost Phased Arrays; 5.8. Concluding Remarks; References; Index |
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Sommario/riassunto |
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Advanced Array Systems, Applications and RF Technologies adopts a holistic view of arrays used in radar, electronic warfare, communications, remote sensing and radioastronomy. Radio frequency (RF) and intermediate frequency (IF) signal processing is assuming a fundamental importance, owing to its increasing ability to multiply a system's capabilities in a cost-effective manner. This book comprehensively covers the important front-end RF subsystems of active phased arrays, so offering array designers new and exciting opportunities in signal processing.Key Features* |
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2. |
Record Nr. |
UNINA9911046019703321 |
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Titolo |
Streiten – aber richtig! Zum Umgang mit Kontroversen in Schule und Unterricht / / Simon Meisch, Uta Müller, Taiga Brahm, Malte Ring, Uwe Küchler, Wolfgang Polleichtner, Konstantin Broese, Botho Priebe, Salwa Achaboun, Marcel Vondermaßen, Anja Meitner, Claudia Möller, Julia Hagen, Dominik Balg, Marcus Kindlinger, Andreas Schmidt, Victoria Estler |
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Pubbl/distr/stampa |
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Leverkusen, : Verlag Barbara Budrich, 2025 |
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2025, c2026 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (210 pages) |
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Soggetti |
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Beutelsbacher Konsens |
controversy |
conflicts in schools |
Schulkonflikte |
dealing with disputes |
Didaktik |
didactics |
Streit |
ethical orientation |
Konsens |
ethische Orientierung |
teaching |
teachers |
Unterricht |
Lehrer |
teacher training |
Lehrerinnen |
Ausbildung |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Streiten – aber richtig! Zum Umgang mit Kontroversen in Schule und Unterricht (Simon Meisch) „Das kann doch jede*r selbst entscheiden!“ (Uta Müller) Kontroversität in der Praxis der politischen Bildung (Anja Meitner und Claudia Möller) Kriege sind keine Fußballspiele und Sicherheit ist (noch) kein Frieden (Julia Hagen) Kontroversitätsgebote vor dem Hintergrund fachspezifischer Diskursnormen (Dominik Balg) Kontroversität nicht vereinseitigen (Marcus Kindlinger und Andreas Schmidt) Die Bedeutung von Kontroversität für die ökonomische Bildung (Victoria Estler, Taiga Brahm und Malte Ring) Engaging with Differences, Challenging Perspectives (Uwe Küchler) Wie kontrovers darf es denn sein? (Wolfgang Polleichtner) Zur Kontroversität im Kontext demokratischer Schulentwicklung (Konstantin Broese und Botho Priebe) Kontroversität im sozialen System Schule (Salwa Achahboun und Marcel Vondermaßen) Autor*innen |
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Sommario/riassunto |
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Kontroversen gehören zur pluralistischen Gesellschaft: Sie zeigen, dass eine lebendige Auseinandersetzung stattfindet und Selbstverständlichkeiten in Frage gestellt werden. Ein Ort, an dem kontroverse Themen zur Sprache kommen, ist die Schule. Der Umgang mit kontroversen Themen wird dadurch zur Aufgabe und Herausforderung für Lehrkräfte und für die Lehramtsausbildung. Die Beiträge dieses Bandes diskutieren, an welchen didaktischen und ethischen Bezugspunkten sich Lehrende im Umgang mit Kontroversität orientieren können. Controversies are part of a pluralistic society: they show that a lively debate is taking place and that things that are taken for granted are being questioned. Schools are places where controversial topics are discussed. Dealing with controversial topics therefore becomes a task and a challenge for teachers and for teacher training programmes. The articles in this volume discuss the didactic and ethical points of reference that teachers can use to orientate themselves when dealing with controversy. |
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