Title :
The Double-Spiral Antenna for the Production of Microwave Plasma Jets
Author :
Fu Guo ; Pei Liu ; Ming Chen ; Junfeng Chen ; Shengming Wang ; Zhaoquan Chen ; Minghai Liu
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A double-spiral surface plasmon polariton (SPP) antenna is designed to produce a long-microwave plasma jet at atmospheric pressure with low power. This new structure antenna is made by an outer-tube spiral copper wire and an inner copper wire. To explore the influence of the new structure SPP exciter, many experiments are carried out in which the longest plasma jet of 13.5 cm is produced at atmospheric pressure with a power of 50 W. From the results of experiments, theoretical analysis, and field simulation by COMSOL, it is obvious that the new SPP antenna can produce longer plasma jets at a low gas flow rate, low power, and longer distance. Therefore, it is more suitable for special industrial applications for long-distance discharge.
Keywords :
antennas in plasma; copper; high-frequency discharges; plasma jets; plasma simulation; plasma sources; polaritons; surface plasmons; Cu; double-spiral surface plasmon polariton antenna; gas flow rate; industrial applications; inner-tube spiral copper wire; long-distance discharge; long-microwave plasma jet production; outer-tube spiral copper wire; plasma simulation; power 50 W; pressure 1 atm; size 13.5 cm; Argon; Copper; Discharges (electric); Electromagnetic waveguides; Electron tubes; Plasmas; Wires; Microwave plasma jet (MPJ); new structural antenna; numerical simulation; surface plasmon polaritons (SPPs); theoretical analysis; theoretical analysis.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2015.2432056
