Mall oder das Verschwinden der Berge / Urs Richle

• Record Nr.: UNIORUON00331184
• Autore: RICHLE, Urs
• Pubbl/distr/stampa: Berlin, : Mathias Gatza, c1993
• ISBN: 39-282-6232-7
• Descrizione fisica: 182 p. ; 22 cm.
• Disciplina: 833.914
• Lingua di pubblicazione: Tedesco
• Formato: Materiale a stampa
• Livello bibliografico: Monografia

Fundamentals of antennas : concepts and applications / / Christos G. Christodoulou, Parveen F. Wahid

• Record Nr.: UNINA9911004817603321
• Autore: Christodoulou Christos G
• Pubbl/distr/stampa: Bellingham, Wash., : SPIE Press, 2001
• ISBN: 1-62870-101-3; 0-8194-7888-1
• Descrizione fisica: 1 online resource (108 p.)
• Collana: Tutorial texts in optical engineering ; ; v. TT 50
• Altri autori (Persone): WahidParveen F
• Disciplina: 621.384/135
• Soggetti: Antennas (Electronics)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Introduction -- Chapter 1. History and Applications. 1.1. History and development of antennas -- 1.2. Applications and impact on systems -- References.; Chapter 2. Fundamental Parameters of Antennas. 2.1. Radiation pattern -- 2.2. Power density -- 2.3. Radiation intensity -- 2.4. Directivity -- 2.5. Gain. -- 2.6 Input impedance -- 2.7. Bandwidth -- 2.8. ; Polarization -- 2.9. Friis equation -- References.; Chapter 3. Wire Antennas. 3.1. Infinitesimal dipoles -- 3.2. Small dipole -- 3.3. Dipole of finite length -- 3.4. Effect of infinite conductors on the radiation pattern of linear wire antennas -- 3.5. Loop antennas -- 3.6. Radiated fields of a short dipole and a small loop -- References.; Chapter 4. Antenna Arrays. 4.1. Array factors -- 4.2. Uniform N-element linear array -- 4.3. Planar arrays -- 4.4. Circular arrays -- References.; Chapter 5. Types of Antennas. 5.1. Reflector antennas -- 5.2. Lens antennas -- 5.3. Horn antennas -- 5.4. Microstrip antennas -- 5.5. Radome coverings -- References.; Chapter 6. Antennas for Infrared Detectors. 6.1. Antennas for infrared detectors -- 6.2. Design of helical antennas for terahertz applications -- 6.3. Design of broadband FIR antennas -- References.; Chapter 7. Antenna Measurements. 7.1. Radiation pattern measurements -- 7.2. Gain measurements -- 7.3. Impedance measurements -- References -- Index.
• Sommario/riassunto: This tutorial explains antenna design and application for various systems, including communications, remote sensing, radar, and biomedicine. It describes basic wire and array antennas in detail and introduces other types such as reflectors, lenses, horns, Yagi, microstrip, and frequency-independent antennas. Integration issues and technical challenges are discussed. Aimed at students, engineers, researchers, and technical professionals.