Integrated air coil and capacitor and method of making the same
First Claim
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1. An integrated inductor and capacitor component comprising:
- a first strip of electrically conductive material having a top surface and a bottom surface;
a first insulating material overlying said top surface of said first strip;
a second strip of electrically conductive material having a top surface and a bottom surface;
a second insulating material overlying said top surface of said second strip;
wherein said first and second strips are wound in a coil to form a plurality of windings and such that said first and second insulating materials electrically insulate the top surface of said first strip from the bottom surface of the second strip and the bottom surface of the first strip from the top surface of the second strip such that the first strip is electrically insulated from the second strip.
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Accused Products
Abstract
In one aspect, the present invention provides an integrated inductor and capacitor 20 which can be used as the inductive portion of a resonant circuit and the energy accumulator for a identification system transponder. In a first embodiment, the integrated inductor and capacitor component 20 may include first and second strips of electrically conductive material 22 and 26, for example aluminum. The first and second strips 22 and 26 are wound in a coil 20 to form a plurality of windings. Each winding is electrically insulated from adjacent ones of the windings by insulators 24 and 28. The component can be bonded to a transponder chip.
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Citations
18 Claims
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1. An integrated inductor and capacitor component comprising:
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a first strip of electrically conductive material having a top surface and a bottom surface; a first insulating material overlying said top surface of said first strip; a second strip of electrically conductive material having a top surface and a bottom surface; a second insulating material overlying said top surface of said second strip; wherein said first and second strips are wound in a coil to form a plurality of windings and such that said first and second insulating materials electrically insulate the top surface of said first strip from the bottom surface of the second strip and the bottom surface of the first strip from the top surface of the second strip such that the first strip is electrically insulated from the second strip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making a plurality of integrated inductor and capacitor components comprising the steps of:
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providing a first sheet of conductive material; disposing a first insulating material adjacent said first sheet of conductive material; providing a second sheet of conductive material; disposing a second insulating material adjacent said second sheet of conductive material; cutting said first sheet of conductive material and said first insulating material into a first plurality of strips; cutting said second sheet of conductive material and said second insulating material into a second plurality of strips; and forming a plurality of integrated inductor and capacitor components, each component formed by winding a first strip from said first plurality of strips and a second strip from said second plurality of strips to form a plurality of windings such that said first and second insulating materials electrically insulate each of said windings from adjacent ones of said windings and such that said first strip is electrically isolated from said second strip. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An integrated inductor and capacitor component formed from a method comprising the steps of:
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providing a first sheet of conductive material; disposing a first insulating material adjacent said first sheet of conductive material; providing a second sheet of conductive material; disposing a second insulating material adjacent said second sheet of conductive material; cutting said first and second sheets of conductive material and said first and second insulating materials into a plurality of strips; and winding a strip of said first conductive material and a strip of said second conductive material in a coil to form a plurality of windings such that said first and second insulating materials electrically insulate each of said windings from adjacent ones of said windings.
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17. An identification system comprising:
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an interrogation unit for communicating with cooperating transponder units, said interrogation unit comprising; control circuitry; a transmitter for transmission of at least one interrogation signal, said transmitter coupled to said control circuitry; and a receiver for receiving signal information at the termination of said at least one interrogation signal, said receiver coupled to said control circuitry; and a transponder unit located in spaced relation with respect to said interrogation unit for receiving said interrogation signal and returning signal information to said receiver, said transponder unit including; at least one electrical circuit component; a parallel resonant circuit including a coil and a capacitor coupled to said at least one electrical circuit component; and an energy accumulator coupled to said parallel resonant circuit; wherein said energy accumulator and said coil of said parallel resonant circuit comprise an integrated component, said integrated component comprising first and second strips of electrically conductive material wound in a coil to form a plurality of windings and such that an insulating material electrically insulates each of said windings from adjacent ones of said windings. - View Dependent Claims (18)
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Specification