Antenna assembly
AssigneeSiemens Aktiengesellschaft
InventorsDavid William Huish, John Hunt
Life of this patent
Estimating the term…
Abstract
A wireless magnetic resonance imaging scanner antenna assembly has a radio frequency antenna array having a number of RF antenna rungs, a microwave antenna array having a number of microwave antenna elements, and a number of antenna feeds. The rungs and elements are grouped together in feed subsets, each subset having at least one feed rung, one non-feed rung and associated microwave antenna elements. Signal transfers between a feed rung and a non-feed rung of a subset are made at a point on the feed rung, within a region of minimum potential.
Claims11
A wireless magnetic resonance imaging scanner antenna assembly comprising:
- a radio frequency (RF) antenna array comprising a plurality of RF antenna rungs;
- a microwave antenna array comprising a plurality of microwave antenna elements;
- a plurality of antenna feeds;
- said rungs and elements being grouped together in feed subsets, each subset comprising at least one feed rung, one non-feed rung and associated microwave antenna elements;
- and
- signal transfers between a feed rung and a non-feed rung of the subset being made at a point on the feed rung, within a region of minimum potential determined from the breakdown voltage of air and the distance between pads of capacitors required to maintain a good microwave path with less than 0.5 dB insertion loss.
Dependencies are inferred from the claim text.