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US 10,657,338 B2Granted
Microwave antenna array and testbed for osteoporosis detection
OwnerSergey N Makarov, Gregory M Noetscher +2inventors
InventorsSergey N Makarov, Gregory M Noetscher, Viktor S Makarov, Ara Nazarian
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Abstract
The present invention relates to a microwave sensing device that uses antennas in the form of a 2×1 array with two radiators driven out of phase via a 180 degree power splitter for measuring a radio-frequency signal propagating through a mammalian specimen to obtain an integral estimate of bone density.
Claims22
A microwave sensing device comprising:
- at least one 2×1 transmitting antenna array assembly comprising:
- at least a first and second antenna, wherein each antenna further comprises:
- a radiator element, and
- a ground element, and
- a 180° power splitter, wherein the radiator of the first antenna and the radiator of the second antenna are driven out of phase by the 180° power splitter.
2 more elements
A microwave sensing device comprising:
- at least one 2×1 transmitting antenna array assembly comprising:
- at least a first and second antenna wherein each antenna further comprises:
- a radiator element, and
- a ground element, and
- a 180° power splitter, wherein the radiator of the first antenna and the radiator of the second antenna are driven out of phase by the 180° power so litter,
- a Network Analyzer connected to the 180° power splitter, wherein the Network Analyzer further comprises a first port and a second port and the power splitter is connected to the first port,
- a testbed, wherein the testbed further comprises:
- a top, comprising a top exterior and a top interior,
- a bottom, comprising a bottom exterior and a bottom interior,
- a test space, wherein the test space is an area, between the top interior and the bottom interior,
- an attachment means, wherein the top and the bottom are coupled to the attachment means.
8 more elements
A microwave sensing device comprising:
- at least one 2×1 transmitting antenna array assembly comprising:
- at least a first and second antenna, wherein each antenna further comprises:
- a radiator element, and
- a ground element, and
- a 180° power splitter, wherein the radiator of the first antenna and the radiator of the second antenna are driven out phase by the 180° power splitter,
- a testbed, wherein the testbed further comprises:
- at top, comprising a top exterior and a top interior,
- a bottom, comprising a bottom exterior and a bottom interior,
- a test space, wherein the test space is an area between the to interior and the bottom interior,
- an attachment means, wherein the top and the bottom are coupled to the attachment means, further comprising:
- an RFID reader connected to the 180° power splitter, and
- an RFID tag array located on the top interior.
9 more elements
A microwave sensing device comprising:
- at least one 2×1 transmitting antenna array assembly comprising:
- at least a first and second antenna, wherein each antenna further comprises:
- a radiator element, and
- a ground element, and
- a 180° power splitter, wherein the radiator of the first antenna and the radiator of the second antenna are driven out of phase by the 180° power splitter,
- a testbed, wherein the testbed further comprises:
- a top, comprising a top exterior and a top interior,
- a bottom, comprising a bottom exterior and a bottom interior,
- a test space, wherein the test space is an area between the top interior and the bottom interior,
- an attachment means, wherein the top and the bottom are coupled to the attachment means,
- a means for adjusting the test space,
- wherein the attachment means comprises at least one support post and the means for adjusting the test space comprises at least one step motor.
9 more elements
Dependencies are inferred from the claim text.