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US 6,606,064 B1Granted
Systems and methods for using a closed field antenna for air interface testing
AssigneeMitsubishi Electric Corporation
InventorDavid R. Lusterman
Life of this patent
Estimating the term…
Abstract
A tester comprises a first antenna that includes a cylinder formed from a dielectric material, a ground plane covering at least a portion of the outer surface of the cylinder, and a conductor covering a portion of the inner surface of the cylinder and located at approximately the axial midpoint of the center. The tester also includes a test fixture for holding a device under test and interfacing it with the first antenna.
Claims19
An antenna, comprising:
- a cylinder formed from a dielectric material;
- a ground plane covering at least a portion of the outer surface of the cylinder;
- and
- a conductor covering a portion of the inner surface of the cylinder and located at approximately the axial midpoint of the center,
- the width of the ground plane being an odd multiple of the width of the conductor.
2 more elements
A tester, comprising:
- a first antenna, the antenna including:
- a cylinder formed from a dielectric material;
- a ground plane covering at least a portion of the outer surface of the cylinder;
- and
- a conductor covering a portion of the inner surface of the cylinder and located at approximately the axial midpoint of the center, and
- a test fixture configured to:
- hold a device under test, the device under test comprising a second antenna, and
- position the device under test such that the second antenna is substantially within the cylinder.
5 more elements
A method of constructing a closed field antenna comprising a conductor, a cylinder, and a ground plane, the method comprising:
- selecting a width for the conductor based on a frequency at which the conductor is required to resonate;
- selecting a length of the ground plane based on the length of a device under test antenna;
- selecting a length of the cylinder to be at least as long as the length of the ground plane;
- selecting the thickness of the cylinder based on a required capacitance between the conductor and the ground plane.
1 more element
Dependencies are inferred from the claim text.