Inventors:
Eric Eckstein - Merion Station PA, US
Gary Mazoki - Sewell NJ, US
Peter Lendering - Terborg, NL
Luis Francisco Soler Bonnin - Guanica PR, US
Takeshi Matsumoto - Kanagawa-ken, JP
Lawrence Appalucci - Villanova PA, US
Assignee:
Checkpoint Systems, Inc. - Thorofare NJ
International Classification:
G01R 31/28
US Classification:
29593, 29 2542, 295921, 296021, 29832, 29850, 257306, 257310, 257528, 257532, 336176, 336200, 336229, 324633, 324652, 324655, 324656, 361737, 361760, 361765, 361766, 361782, 438 17, 3405721, 3405725
Abstract:
A method of making a resonant frequency tag having a predetermined frequency comprises forming a first conductive pattern comprising an inductive element and a first land having a first end connected to an inductive element end, and a second end spaced a predetermined distance from the first end; separately forming a second conductive pattern comprising a second land having a predetermined width and a link element; placing the second conductive pattern proximate the first conductive pattern at a first location wherein the second land overlies a portion of the first land with a dielectric therebetween establishing capacitive element plates having a first capacitance along with the inductive element forming a resonant circuit; measuring the resonant circuit frequency and comparing the measured and predetermined frequencies moving the second land along of the first land length to match the resonant frequency; and securing the second conductive pattern to the first conductive pattern.