منابع مشابه
Letters Lower Hybrid Wave Excitation by a Fast Wave Current Drive Antenna
Excitation of the lower hybrid wave (slow wave) using a launcher designed for fast wave excitation has been observed under conditions where neither direct excitation nor mode conversion is expected to take place. The slow wave was revealed through the presence of its resonance cone. The experiment was performed with £2j < to <€ J2e. The coupling of the fast wave into the slow wave is attributed...
متن کاملdesign and implementation of a vhf plasma antenna
in recent years, the plasma antenna is a new technology for replacing the metal antennas that have been designed with better performance. in the steady state, the radiation pattern of a plasma antenna will be similar to the case of metallic antennas with the same form, size and performance at the same frequency and power. by sweeping the parameters in the plasma tube, we can change the operatin...
متن کاملDesign and Fabrication of Plasma Array Antenna with Beam Forming
In this paper, the design and implementation of plasma antenna array with beam forming is discussed. The structure consists of a circular array of plasma tube enclosed in a unipolar UHF band monopole antenna. Beam forming is possible by stimulated plasma tubes. The combination of the above antenna with plasma excitation controller makes a beam forming smart antenna. An experimental model in UHF...
متن کاملFast-wave current drive in a toroidal plasma.
Fast-wave current drive is demonstrated in Hw Princeton ACT -I toroidal device. The fast Alfven wave, in the range of high ion-cyclotron harmonics, produced 40 A of current from 1 kW of rf power coupled into a plasma hy a fast-wave locp antenna. This wave excites a steady current by damping on the energetic tail of the electron distribution function in the same way as lower-hybrid current drive...
متن کاملParticle in Cell-Monte Carlo Collisions of a Plasma Column Driven by Surface Wave Plasma Discharges
In this work, applicability of Particle in Cell-Monte Carlo Collisions (PIC-MCC) simulation method for better understanding of the plasma physical mechanisms and real important aspects of a plasma column driven by surface wave plasma discharges that is used in plasma antennas is examined. Via the implementation of geometry and physical parameters of the plasma column to an Object Oriented PIC-M...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 1999
ISSN: 0148-0227
DOI: 10.1029/1999ja900095