ADJUSTABLE MAGNETIC PROBE FOR EFFICIENT NEAR FIELD SCANNING
First Claim
1. An apparatus for near field magnetic probe testing, comprising:
- a loop antenna connected to a coaxial cable, with the coaxial cable serving as a center conductor;
an axle mounted to the loop antenna and connected to a step motor;
two outer conductors; and
a servo motor.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for testing near field magnetic fields of electronic devices. The method comprises measuring a magnetic field using a loop antenna that is oriented in a first direction. The loop antenna is swept through a desired range of azimuth angles while measuring the magnetic field. Once the first direction testing is completed, the loop antenna is changed to a second orientation direction. The magnetic field is then measured in the second orientation direction and is swept through a desired range of orientation angles in the second direction. The apparatus provides a loop antenna connected to a coaxial probe, with the coaxial cable serving as the center conductor, and two outer conductors. An axle is mounted to the loop antenna and connected to a step motor. A servo motor is also provided for moving the arm assembly.
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Citations
20 Claims
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1. An apparatus for near field magnetic probe testing, comprising:
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a loop antenna connected to a coaxial cable, with the coaxial cable serving as a center conductor; an axle mounted to the loop antenna and connected to a step motor; two outer conductors; and a servo motor. - View Dependent Claims (2, 3)
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4. A method for testing near field magnetic fields of electronic devices, comprising:
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measuring a magnetic field using a loop antenna oriented in a first direction; sweeping the loop antenna through a desired range of azimuth angles in the first orientation direction; changing the loop antenna orientation from a first orientation direction to a second orientation direction; measuring a magnetic field using the loop antenna oriented in the second direction; and sweeping the loop antenna through a desired range of azimuth angles in the second orientation direction. - View Dependent Claims (5, 6, 7, 8, 9)
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10. An apparatus for testing near field magnetic fields of electronic devices, comprising:
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means for measuring a magnetic field using a loop antenna oriented in a first direction; means for sweeping the loop antenna through a desired range of azimuth angles in the first orientation direction; means for changing the loop antenna orientation from a first orientation direction to a second orientation direction; means for measuring a magnetic field using the loop antenna oriented in the second direction; and means for sweeping the loop antenna through a desired range of azimuth angles in the second orientation direction. - View Dependent Claims (11, 12, 13, 15, 16, 17, 18, 19)
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14. A computer-readable non-transitory storage medium, containing instructions, which when executed cause a processor to perform the steps of:
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measuring a magnetic field using a loop antenna oriented in a first direction; sweeping the loop antenna through a desired range of azimuth angles in the first orientation direction; changing the loop antenna orientation from a first orientation direction to a second orientation direction; measuring a magnetic field using the loop antenna oriented in the second direction; and sweeping the loop antenna through a desired range of azimuth angles in the second orientation direction.
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20. The computer-readable non-transitory storage medium of claim 20, further comprising instructions for controlling multiple probe arms having at least two different probe spot sizes.
Specification