Electromagnetic navigation antenna assembly and electromagnetic navigation system including the same
First Claim
1. An antenna assembly for radiating a plurality of electromagnetic fields for electromagnetic navigation, the antenna assembly comprising:
- a substrate having a plurality of layers; and
a plurality of groups of planar antennas, each group of planar antennas of the plurality of groups of planar antennas disposed on a respective layer of the plurality of layers of the substrate and including a first planar antenna, a second planar antenna, and a third planar antenna, each of the first, second, and third planar antennas of a group of planar antennas including a trace arranged in a loop,wherein, for each of the plurality of groups of planar antennas;
an innermost loop of the first planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion,an innermost loop of the second planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion and longer than the first linear portion,an innermost loop of the third planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion and longer than the first linear portion,the first linear portion of the innermost loop of the second planar antenna and the second linear portion of the inner most loop of the third planar antenna are approximately parallel to each other and to the first linear portion of the innermost loop of the first planar antenna, andthe second linear portion of the inner most loop of the second planar antenna and the first linear portion of the innermost loop of the third planar antenna are approximately parallel to each other and to the second linear portion of the innermost loop of the first planar antenna.
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Accused Products
Abstract
An antenna assembly and an electromagnetic navigation system including such an antenna assembly are provided. The antenna assembly includes a substrate and multiple groups of planar antennas. Each of the planar antennas includes a multiple-loop trace deposited on one of multiple layers of the substrate. Each group includes a first, second, and third planar antenna. For each group, an innermost loop of the first planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion, an innermost loop of the second planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion and longer than the first linear portion, an innermost loop of the third planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion and longer than the first linear portion.
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Citations
10 Claims
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1. An antenna assembly for radiating a plurality of electromagnetic fields for electromagnetic navigation, the antenna assembly comprising:
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a substrate having a plurality of layers; and a plurality of groups of planar antennas, each group of planar antennas of the plurality of groups of planar antennas disposed on a respective layer of the plurality of layers of the substrate and including a first planar antenna, a second planar antenna, and a third planar antenna, each of the first, second, and third planar antennas of a group of planar antennas including a trace arranged in a loop, wherein, for each of the plurality of groups of planar antennas; an innermost loop of the first planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion, an innermost loop of the second planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion and longer than the first linear portion, an innermost loop of the third planar antenna has a first linear portion and a second linear portion approximately perpendicular to the first linear portion and longer than the first linear portion, the first linear portion of the innermost loop of the second planar antenna and the second linear portion of the inner most loop of the third planar antenna are approximately parallel to each other and to the first linear portion of the innermost loop of the first planar antenna, and the second linear portion of the inner most loop of the second planar antenna and the first linear portion of the innermost loop of the third planar antenna are approximately parallel to each other and to the second linear portion of the innermost loop of the first planar antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification