Study of RF Source Ignition System with Impedance Matching Network for RF Driven H
نویسندگان
چکیده
This paper presents study of a 6.78 MHz RF source with impedance matching network based inductively coupled plasma generator ignition system for an Hion source. Two types of 10 turn RF antenna (solenoid coil) were developed, to couple the RF power to the ignition plasma chamber. The antenna’s electric parameters were measured using Vector Network Analyzer (VNA). A copper conductor of 3 x 4 mm size with 10 turn solenoid coil was selected for simulation and experimental prototype antenna. Two L-types of (CCL and LCL C-capacitor and Linductor) matching network were selected for impedance matching network for RF antenna. Initial simulations are carried out using ELSIE and LT-spice for frequency range from 5 to 8MHz. The matching network along with RF antenna was matched to ~ 50 Ωimpedance at 6.78 MHz with capacitive nature. An experimental prototype RF power source, 10 turn antenna (coil) and a matching network was developed to validate the simulation results. The prototype ignition system along with impedance matching network L-type with CCL was tested for inductively coupled hydrogen plasma generation and experimental results presented. Hydrogen plasma generation starts at minimum antenna coupled RF power of 150 watts, once initiated hydrogen plasma maintains to a minimum RF power of 10 watts.
منابع مشابه
An Automatic Real Time Impedance Matching System for Use in an RF Electrostatics Accelerator Ion Source
متن کامل
Comparison of a Current Source and a Voltage source in Transmit SENSE
H. Nam, S. M. Wright Electrical Engineering, Texas A&M University, College Station, TX, United States INTRODUCTION: An RF power amplifier feeds power into a RF coil through matching networks and generates a transverse magnetic B1 field. In the conventional voltage source configuration, the matching networks ensure maximum power transfer between the RF amplifier and the coil. Assuming the coil i...
متن کاملBroadband Antenna Matching Network Design and Application for RF Plasma Ion Source
The RF ion source at Spallation Neutron Source has been upgraded to meet higher beam power requirement. One important subsystem for efficient operation of the ion source is the 2MHz RF impedance matching network. The real part of the antenna impedance is very small and is affected by plasma density for 2MHz operating frequency. Previous impedance matching network for the antenna has limited tun...
متن کاملDesign of an Efficient Rectifier Circuit for RF Energy Harvesting System
An efficient rectifier system along with an impedance matching network is proposed in this article. Impedance matching network is designed using two microstrip lines. Rectifier system for better RF to DC conversion is designed using a bridge rectifier. The proposed rectifier system provides a maximum efficiency of 50%. The impedance matching network improves the overall system performances sign...
متن کاملStudies on the radio frequency power supply system for the ITER NB injector ion source
In the framework of the European activities on the ITER neutral beam (NB) injector, the design of a 1MHz, 1MW power supply (PS) system for the radio frequency (RF) driven ion source, has been developed in cooperation between IPP and RFX laboratories. This paper describes the studies performed with particular emphasis on the system design, the definition of the best modularity level to be adopte...
متن کامل