TY - GEN

T1 - Plasma surface presented as array of virtual ports

AU - Kyrytsya, V.

AU - Koch, R.

PY - 2009

Y1 - 2009

N2 - Calculations aimed at representing the plasma-vacuum boundary condition in real space are presented. Some ideas about how this representation can be used for power coupling analysis and antenna modeling are put forward. The relation between tangential electric and magnetic fields on the plasma surface is linear and customary expressed in the spectral domain for every partial wave via 2×2 plasma impedance matrix - Zp(ky,Kz). In this work, the tangential fields E⇀t and B →t on the plasma surface are projected on a suitably chosen set of basis functions. Then the linear operator relating the components E⇀t and B→t expressed in such a way is derived from the known matrix Zp(ky,K z). It is shown that in this representation the plasma surface has properties similar to the array of ports of a microwave system and can be formally described by a corresponding impedance matrix in the way it is done in microwave analysis. The obtained representation can be exploited for deeper understanding of the RF power coupling to the plasmas, antenna modeling, measurements of plasma electromagnetic properties and for plasma modeling with suitably designed structures or metamaterials.

AB - Calculations aimed at representing the plasma-vacuum boundary condition in real space are presented. Some ideas about how this representation can be used for power coupling analysis and antenna modeling are put forward. The relation between tangential electric and magnetic fields on the plasma surface is linear and customary expressed in the spectral domain for every partial wave via 2×2 plasma impedance matrix - Zp(ky,Kz). In this work, the tangential fields E⇀t and B →t on the plasma surface are projected on a suitably chosen set of basis functions. Then the linear operator relating the components E⇀t and B→t expressed in such a way is derived from the known matrix Zp(ky,K z). It is shown that in this representation the plasma surface has properties similar to the array of ports of a microwave system and can be formally described by a corresponding impedance matrix in the way it is done in microwave analysis. The obtained representation can be exploited for deeper understanding of the RF power coupling to the plasmas, antenna modeling, measurements of plasma electromagnetic properties and for plasma modeling with suitably designed structures or metamaterials.

KW - Antenna-plasma coupling

KW - Plasma surface impedance matrix

KW - RF plasma heating

UR - http://www.scopus.com/inward/record.url?scp=73449090481&partnerID=8YFLogxK

U2 - 10.1063/1.3273824

DO - 10.1063/1.3273824

M3 - Conference contribution

AN - SCOPUS:73449090481

SN - 9780735407534

T3 - AIP Conference Proceedings

SP - 605

EP - 608

BT - Radio Frequency Power in plasmas - Proceedings of the 18th Topical Conference

T2 - 18th Topical Conference on Radio Frequency Power in plasmas

Y2 - 24 June 2009 through 26 June 2009

ER -