osti.gov journal article: radiation characteristics of an antenna in a plasma.. radiation characteristics of an antenna in a plasma. 1, FEBRUARY 2004 269 Physical Characteristics of Plasma Antennas John Phillip Rayner, Adrian Philip Whichello, Member, IEEE, and Andrew Desmond Cheetham, Member, IEEE Abstract—Thisexperimentalandtheoretical studyexaminesthe excitation of a plasma antenna using an argon surface wave dis- Through using FDTD method, we study the propagation of electromagnetic wave in free space in stretched coordinate. The report presents a first order approximation synthesis of an argon arc jet in air, at atmospheric pressure. When deionized the gas antenna The characteristics of the reception of local frequency modulated (FM) electromagnetic wave by the plasma antenna were compared with that by a copper antenna with same dimensions. The radiation characteristic of plasma antenna is investigated by using the finite-difference time-domain (FDTD) approach in this paper. IEEE Transactions on Plasma Science, 32 (1) , pp. Through using FDTD method, we study the propagation of electromagnetic wave in free space in stretched coordinate. We developed two types of antennas. IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. Plasma antenna is a general terms representing using plasma as a conductive medium to transmit or reflect signals. 2.3 Reconfigurable Characteristics of
269-281 Abstract This experimental and theoretical study examines the excitation of a plasma antenna using an argon surface wave discharge operating at 500 MHz with RF power levels up to 120 W and gas pressures between 0.03 and 0.5 mb. plasma antenna, the range of working frequency is reduced accordingly. THE PLASMA ANTENNA Antenna is a matching section between two output terminals of a transmitter and space, or between space and two input terminals of a receiver. And the iterative equations of Maxwell equation are derived. Previous plasma antenna uses RF power to generate the plasma column. So a plasma antenna is a type of transmission and reception device that makes use of plasma medium rather than metal components. The report presents an analysis of the physical and electrical characteristics of a plasma jet for the purpose of using the plasma column as an antenna. Plasma’s conductive and dielectric properties have been well known for decades. It has unique properties like low RCS (radar cross section), variable impedance and instant on-off capability.
32, NO. The plasma characteristics of the internal ICPs such as plasma density, plasma potential, ion saturation current, and plasma uniformity for the both of the antennas with Ar gas were measured using a Langmuir probe (Hiden Analytical Inc.) located 7.5 cm below the antenna and along the vertical centerline of the chamber. The results show that characteristics such as the resistance, reactance, directionality and radiation pattern can be easily and rapidly regulated by varying not only the discharge parameters but also the antenna shapes. The characteristics of plasma antennas have been reported theoretically and experimentally by several groups. The radiation characteristic of plasma antenna is investigated by using the finite-difference time-domain (FDTD) approach in this paper.

When deionized, the gas has infinite resistance and does not interact with RF radiation. It has unique properties like low RCS (radar cross section), variable impedance and instant on-off capability. Plasma’s conductive and dielectric properties have been well known for decades. Radiation is simply the transfer of energy through a medium. Plasma’s conductive and dielectric properties have been well known for decades. The first is a plasma reflector antenna that is able to electronically focus and steer the beam of an intrinsically-omnidirectional feed. The plasma column is used as radiating elements instead of metal to create an antenna. Plasma antenna is a general terms representing using plasma as a conductive medium to transmit or reflect signals. The results show that it is feasible to take plasma antennas as receiving ones. This paper presents a design and simulation of a reconfigurable array of plasma antenna.


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