Test fixture for evaluating RF identification system and related methods
First Claim
1. An apparatus for evaluating a radio frequency (RF) identification system, the apparatus comprising:
- a test fixture including a base having a plurality of tag positions for locating an RF tag relative to an RF antenna;
wherein a first set of the plurality of tag positions extend in a first linear direction, and another set of the plurality of tag positions extends in a second linear direction that is substantially perpendicular to the first linear direction.
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Abstract
A test fixture for evaluating an RF identification system and related methods for evaluating an RF tag and/or an RF antenna, are disclosed. The test fixture provides predefined RF tag positions that can be used to test: read position, distance and antenna capability and adjustments. By placing an actual RF tag in each of the predefined positions, a read of the tag information can be performed. A three dimensional plot can then be established for the sensitivity field of the antenna. By placing the RF tag in various positions and orientations, the antenna can be adjusted until an optimum field is produced. The invention can also be used to determine RF tag performance within the optimized field.
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Citations
19 Claims
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1. An apparatus for evaluating a radio frequency (RF) identification system, the apparatus comprising:
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a test fixture including a base having a plurality of tag positions for locating an RF tag relative to an RF antenna; wherein a first set of the plurality of tag positions extend in a first linear direction, and another set of the plurality of tag positions extends in a second linear direction that is substantially perpendicular to the first linear direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of evaluating a radio frequency (RF) identification system, the method comprising the steps of:
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placing a test fixture proximate an RF antenna of the RF identification system; positioning an RF tag at a plurality of tag positions on the test fixture; and evaluating sensing of the RF tag by the RF antenna at each of the tag positions. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of evaluating a radio frequency (RF) Identification system including an RF tag and an RF antenna for sensing the RF tag, the method comprising the steps of:
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placing a test fixture in proximity to the RF antenna; positioning the RF tag at a plurality of tag positions on the text fixture; evaluating sensing of the RF tag by the RF antenna at each of the tag positions; determining at least one oft a sensing field of the RF antenna and a sensitivity strength of the RF tag; and adjusting one of the RF tag and the RF antenna to ensure reading of the RF tag by the RE antenna during operation of the RF identification system. - View Dependent Claims (18, 19)
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Specification