1 – 8, 11, 12) Practical wireless communication using plasma antenna has been demonstrated. IEEE Transactions on Plasma Science, 32 (1) , pp. Plasma antenna is a general terms representing using plasma as a conductive medium to transmit or reflect signals. Plasma’s conductive and dielectric properties have been well known for decades. Radiation is simply the transfer of energy through a medium. So a plasma antenna is a type of transmission and reception device that makes use of plasma medium rather than metal components. 32, NO. Previous plasma antenna uses RF power to generate the plasma column. Through using FDTD method, we study the propagation of electromagnetic wave in free space in stretched coordinate. Previous plasma antenna uses RF power to generate the plasma column. When deionized, the gas has infinite resistance and does not interact with RF radiation. The first is a plasma reflector antenna that is able to electronically focus and steer the beam of an intrinsically-omnidirectional feed. Plasma’s conductive and dielectric properties have been well known for decades. So from the results of related experiments in monopole plasma antenna if we want to get a large range of working reconfigurable frequency, the radius of plasma antenna should be small and th e inner pressure of it should be low. It has unique properties like low RCS (radar cross section), variable impedance and instant on-off capability. 2.3 Reconfigurable Characteristics of We developed two types of antennas. The radiation characteristic of plasma antenna is investigated by using the finite-difference time-domain (FDTD) approach in this paper. The characteristics of plasma antennas have been reported theoretically and experimentally by several groups. Plasma’s conductive and dielectric properties have been well known for decades. Plasma antenna is a general terms representing using plasma as a conductive medium to transmit or reflect signals. 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. 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- 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 results show that it is feasible to take plasma antennas as receiving ones. IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. IV.
Through using FDTD method, we study the propagation of electromagnetic wave in free space in stretched coordinate.

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. It has unique properties like low RCS (radar cross section), variable impedance and instant on-off capability. This paper investigates the return loss characteristics of plasma antenna with 3 different gases. 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.
osti.gov journal article: radiation characteristics of an antenna in a plasma.. radiation characteristics of an antenna in a plasma. UNIQUE CHARACTERISTICS OF A PLASMA ANTENNA One fundamental distinguishing feature of a plasma antenna is that the gas ionizing process can manipulate resistance. The report presents a first order approximation synthesis of an argon arc jet in air, at atmospheric pressure.

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.


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