Electromagnetic Properties of a Plasma-covered Antenna PDF Download
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Author: Daniel J. Jacavanco Publisher: ISBN: Category : Antennas, Horn Languages : en Pages : 22
Book Description
Antenna patterns (E-plane) of an X-band horn mounted in a ground plane and covered by a plasma slab were measured. A pulsed plasma was produced by capacitor discharge in a rectangular pyrex container of 6 in. x 2 in. x 24 in. i.d. Microwave interferometer measurements of the electron density were made at 9 and 35 Gc. Antenna patterns are presented which show a sharp decrease in radiated power at certain angles corresponding to the 'optics critical angle'. Good agreement is obtained for the movement of the optics critical angle with plasma density. (Author).
Author: Daniel J. Jacavanco Publisher: ISBN: Category : Antennas, Horn Languages : en Pages : 22
Book Description
Antenna patterns (E-plane) of an X-band horn mounted in a ground plane and covered by a plasma slab were measured. A pulsed plasma was produced by capacitor discharge in a rectangular pyrex container of 6 in. x 2 in. x 24 in. i.d. Microwave interferometer measurements of the electron density were made at 9 and 35 Gc. Antenna patterns are presented which show a sharp decrease in radiated power at certain angles corresponding to the 'optics critical angle'. Good agreement is obtained for the movement of the optics critical angle with plasma density. (Author).
Author: Daniel J. Jacavanco Publisher: ISBN: Category : Antennas, Horn Languages : en Pages : 0
Book Description
Antenna patterns (E-plane) of an X-band horn mounted in a ground plane and covered by a plasma slab were measured. A pulsed plasma was produced by capacitor discharge in a rectangular pyrex container of 6 in. x 2 in. x 24 in. i.d. Microwave interferometer measurements of the electron density were made at 9 and 35 Gc. Antenna patterns are presented which show a sharp decrease in radiated power at certain angles corresponding to the 'optics critical angle'. Good agreement is obtained for the movement of the optics critical angle with plasma density. (Author).
Author: Theodore Anderson Publisher: Artech House ISBN: 1630817511 Category : Technology & Engineering Languages : en Pages : 350
Book Description
This updated edition of an Artech House classic contains steering, focusing, and spreading of antenna beams using the physics of refraction of electromagnetic waves through a plasma. Pulsing circuitry for ionizing plasma antennas with low power requirements are covered. New and improved smart plasma antenna and applications to wi-fi and the applications of plasma antennas are discussed. Experimental work on plasma antenna noise and new progress on ruggedization and custom-made plasma tubes are also presented. This unique resource provides readers with a solid understanding of the efficient design and prototype development of plasma antennas to meet the challenge of reducing the power required to ionize the gas at various plasma densities. Thorough coverage of the technical underpinnings of plasma antennas, as well as important discussions on current markets and applications are discussed. Additionally, the book presents experimental work in this cutting-edge area and reveals the latest developments in the field.
Author: Theodore Anderson Publisher: Artech House Publishers ISBN: 9781630817503 Category : Antennas (Electronics) Languages : en Pages : 0
Book Description
This updated edition of an Artech House classic contains steering, focusing, and spreading of antenna beams using the physics of refraction of electromagnetic waves through a plasma. Pulsing circuitry for ionizing plasma antennas with low power requirements are covered. New and improved smart plasma antenna and applications to wi-fi and the applications of plasma antennas are discussed. Experimental work on plasma antenna noise and new progress on ruggedization and custom-made plasma tubes are also presented.This unique resource provides readers with a solid understanding of the efficient design and prototype development of plasma antennas to meet the challenge of reducing the power required to ionize the gas at various plasma densities. Thorough coverage of the technical underpinnings of plasma antennas, as well as important discussions on current markets and applications are discussed. Additionally, the book presents experimental work in this cutting-edge area and reveals the latest developments in the field.
Author: Yūji Inoue Publisher: ISBN: Category : Atmospheric models Languages : en Pages : 46
Book Description
The propagation of electromagnetic waves in a horizontally stratified layer of gyrotropic medium is discussed. Derivation of a comprehensive representation for magneto-ionic coupling coefficients allows interpretation of the physical significance of the coupling. Introduction of an invariant quantity for an inhomogeneous medium becomes an important guide for numerical solutions of the wave equation. Numerical results of magneto-ionic coupling coefficients are presented. Based on region properties, characteristic wave types are defined: for the isotropic region, linearly polarized waves are used; for the anisotropic region, elliptically polarized waves generally are applied. (Author).
Author: Marvin S. Brooks Publisher: ISBN: Category : Antimony Languages : en Pages : 94
Book Description
An experimental study on the zone refining of the binary system triphenyl antimony-benzoic acid is described. The isotope Sb124, which is a strong gamma emitter, was employed as a tracer; this allowed a rapid in situ nondestructive analysis, closely spaced experimental points, and the opportunity to study distribution as a function of varying experimental conditions. With the aid of computers (IBM 7090 and IBM 7044) apparent k's were calculated and the experimental data compared with those predicted from various mathematical models. (Author).
Author: Daniel J. Jacavanco
Author: Daniel J. Jacavanco
Author: Daniel J. Jacavanco
Author: Theodore Anderson
Author: Theodore Anderson
Author: United States. National Bureau of Standards
Author: Yūji Inoue
Author: J. K. Schindler
Author: Cap Haskell
Author: 
Author: Marvin S. Brooks