Flexible printed circuit board antenna
First Claim
1. An electromagnetic antenna for a non-planar surface, said electromagnetic antenna comprising:
- a flexible printed circuit board having at least three conductive levels, said flexible printed circuit board being adapted to conform to said non-planar surface, said flexible printed circuit board including a plurality of electrical connections between said conductive levels and a plurality of electrical traces on said conductive levels, said electrical connections and said electrical traces forming a first helix having a first helical pitch sense from a first node to a second node, and also forming a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node, said first and second helices being contrawound relative to each other;
first and second signal terminals; and
means for electrically connecting said signal terminals with at least one of said nodes.
1 Assignment
0 Petitions
Accused Products
Abstract
An electromagnetic antenna for a non-planar surface includes a flexible printed circuit board having three or four conductive levels. The flexible printed circuit board is adapted to conform to the non-planar surface and includes a plurality of electrical connections between the conductive levels and a plurality of electrical traces on the conductive levels. The electrical connections and the electrical traces form a first helix having a first helical pitch sense from a first node to a second node, and also form a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node. The first and second helices are contrawound relative to each other. First and second signal terminals are provided and are electrically connected with at least one of the nodes.
57 Citations
38 Claims
-
1. An electromagnetic antenna for a non-planar surface, said electromagnetic antenna comprising:
-
a flexible printed circuit board having at least three conductive levels, said flexible printed circuit board being adapted to conform to said non-planar surface, said flexible printed circuit board including a plurality of electrical connections between said conductive levels and a plurality of electrical traces on said conductive levels, said electrical connections and said electrical traces forming a first helix having a first helical pitch sense from a first node to a second node, and also forming a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node, said first and second helices being contrawound relative to each other;
first and second signal terminals; and
means for electrically connecting said signal terminals with at least one of said nodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. An electromagnetic antenna comprising:
-
a flexible printed circuit board having at least three conductive levels, a first end and a second end, said first end being positioned proximate said second end to form a non-planar surface, said flexible printed circuit board including a plurality of electrical connections between said conductive levels and a plurality of electrical traces on said conductive levels, said electrical connections and said electrical traces forming a first helix having a first helical pitch sense from a first node to a second node, and also forming a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node, said first and second helices being contrawound relative to each other;
first and second signal terminals; and
means for electrically connecting said signal terminals with at least one of said nodes. - View Dependent Claims (30, 31, 32, 33, 34, 35)
-
-
36. An electromagnetic antenna for a non-planar surface, said electromagnetic antenna comprising:
-
a flexible printed circuit board having at least three conductive levels, said flexible printed circuit board being adapted to conform to said non-planar surface, said flexible printed circuit board including a plurality of electrical connections between said conductive levels and a plurality of electrical traces on said conductive levels, said electrical connections and said electrical traces forming a first helix having a first helical pitch sense from a first node to a second node, and also forming a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node, said first and second helices being contrawound relative to each other;
first and second signal terminals structured for transmitting or receiving an antenna signal; and
means for electrically coupling said antenna signal to or from said first and second helices. - View Dependent Claims (37)
-
-
38. An electromagnetic antenna comprising:
-
a flexible printed circuit board having at least three conductive levels, a first end and a second end, said first end being positioned proximate said second end to form a non-planar surface, said flexible printed circuit board including a plurality of electrical connections between said conductive levels and a plurality of electrical traces on said conductive levels, said electrical connections and said electrical traces forming a first helix having a first helical pitch sense from a first node to a second node, and also forming a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node, said first and second helices being contrawound relative to each other;
first and second signal terminals structured for transmitting or receiving an antenna signal; and
means for electrically coupling said antenna signal to or from said first and second helices.
-
Specification