Patent ID: 6518705
Filing Date: 2003-02-11
Classification: H01J

Abstract:
An antenna arrangement for generating an electric field inside a process chamber, said antenna arrangement comprising:a first loop disposed around an antenna axis, comprising: a first turn with a first turn gap wherein a first end of the first turn is on a first side of the first turn gap and a second end of the first turn is on a second side of the first turn gap; a second turn with a second turn gap wherein a first end of the second turn is on a first side of the second turn gap and a second end of the second turn is on a second side of the second turn gap, wherein the second turn is concentric and coplanar with the first turn and spaced apart from the first turn, and where the antenna axis passes through the center of the first turn and second turn; and a first current path connector electrically connected to the first turn and the second turn comprising a spanning section between and coplanar with the first turn and the second turn and which spans the first turn gap and the second turn gap.