| 主权项 |
1. A coil antenna comprising an inner antenna and an outer antenna surrounding said inner antenna, wherein:
(A) said outer antenna comprises:
(1) plural conductive outer lobes extending in respective radial directions with respect to a central axis, each of said plural conductive outer lobes comprising an elongate conductor having a first outer end and a second outer end;(2) a first outer connection to the first outer ends of said plural conductive outer lobes and a second outer connection to the second outer ends of said plural conductive outer lobes, said first and second outer connections being adapted for coupling to an RF power source; (B) said inner antenna comprises:
(1) plural conductive inner lobes extending in respective radial directions with respect to the central axis, each of said plural conductive inner lobes comprising an elongate conductor having a first inner end and a second inner end;(2) a first inner connection to the first inner ends of said plural conductive inner lobes and a second inner connection to the second ends of said plural conductive lobes, said first and second inner connections being adapted for coupling to an RF power source. |
