Author : Krishna Thulasi 1
Date of Publication :7th June 2016
Abstract: The solar system and bulk of universe comprises matter which is strongly in the form of plasma. Any plasma having finite plasma density has a natural frequency of oscillations and the free energy sources present in that plasma may provide sufficient energy to the natural frequencies to propagate are termed as plasma waves. Plasma wave exist in the frequency range between Hertz to Kilohertz. Strong interactions are created between the charged particles in plasma results instabilities. To measure plasma parameters efficient antenna is required with less mass and small power consumption. The plasma wave instrument uses an electric dipole antenna to detect electric fields, and two search coil magnetic antennas to detect magnetic fields. Dipole antenna is preferred to operate in smaller frequency range to measure the local plasma wave parameters for the future space mission. Design the dipole antenna using HFSS software help to observe the frequency variation of plasma wave. The advantages of dipole antenna is that, it can be folded in to smaller dimension, shows Omni directional behavior, provide good directivity ,gain and radiation characteristics can be utilized in PWD instrument.
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